Research Interests:
Quantum Foundations; Decoherence and Open Quantum Systems; Quantum/Gravity Interplay; Quantum Computing
Teaching:
Quantum Field Theory I
Advanced Quantum Mechanics
Journal Articles
2026
Bassi, A
Quantum foundations for quantum technologies in the International Year of Quantum (2025) Journal Article
In: Quantum Sci. Technol., vol. 11, no. 2, 2026, ISSN: 2058-9565.
@article{Bassi2026,
title = {Quantum foundations for quantum technologies in the International Year of Quantum (2025)},
author = {A Bassi},
doi = {10.1088/2058-9565/ae49bc},
issn = {2058-9565},
year = {2026},
date = {2026-06-01},
journal = {Quantum Sci. Technol.},
volume = {11},
number = {2},
publisher = {IOP Publishing},
abstract = {Abstract
From the very beginning, quantum mechanics has been accompanied by crucial foundational questions: the possibility of visualizing physical processes, the limits of measurement epitomized by Heisenberg’s uncertainty principle, the existence of a deeper underlying reality with additional degrees of freedom, the role of measurements, and the status of locality. Long regarded as philosophical speculations, these issues were progressively reformulated into precise mathematical statements and ultimately subjected to experimental verification. The trajectory proved unpredictable: questions once dismissed as metaphysical gave rise to experimental platforms, which in turn matured into devices and technologies powering quantum computation, communication, and sensing. Yet this development is not unidirectional: advances in technology also feed back into foundations, enabling tests of principles that were previously out of reach—for example, whether quantum superposition persists at larger and larger scales and whether reality, gravity included, is fundamentally quantum. In this way, the dialogue between foundational inquiry and technological progress continues to shape both our theoretical understanding and the practical realization of quantum phenomena. },
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Gundhi, Anirudh; Angeli, Oliviero; Bassi, Angelo
From equivalent Lagrangians to inequivalent open quantum system dynamics Journal Article
In: Phys. Rev. Research, vol. 8, no. 1, 2026, ISSN: 2643-1564.
@article{Gundhi2026,
title = {From equivalent Lagrangians to inequivalent open quantum system dynamics},
author = {Anirudh Gundhi and Oliviero Angeli and Angelo Bassi},
doi = {10.1103/4rpx-zj2x},
issn = {2643-1564},
year = {2026},
date = {2026-02-06},
journal = {Phys. Rev. Research},
volume = {8},
number = {1},
publisher = {American Physical Society (APS)},
abstract = {<jats:p>Lagrangians can differ by a total derivative without altering the equations of motion, thus encoding the same physics. This is true both classically and quantum mechanically. We show, however, that in the context of open quantum systems, two Lagrangians that differ by a total derivative can lead to inequivalent reduced dynamics. While these Lagrangians are connected via unitary transformations at the level of the global system-plus-environment description, the equivalence breaks down after tracing out the environment. We argue that only those Lagrangians for which the canonical and mechanical momenta of the system coincide lead to operationally meaningful dynamics. Applying this insight to quantum electrodynamics (QED), we derive the master equation for bremsstrahlung due to an accelerated nonrelativistic electron upto second order in the interaction. The resulting reduced dynamics predicts decoherence in the position basis and closely matches the Caldeira-Leggett form, thus resolving previous discrepancies in the literature. Our findings have implications for both QED and gravitational decoherence, where similar ambiguities arise.</jats:p>},
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<jats:p>Lagrangians can differ by a total derivative without altering the equations of motion, thus encoding the same physics. This is true both classically and quantum mechanically. We show, however, that in the context of open quantum systems, two Lagrangians that differ by a total derivative can lead to inequivalent reduced dynamics. While these Lagrangians are connected via unitary transformations at the level of the global system-plus-environment description, the equivalence breaks down after tracing out the environment. We argue that only those Lagrangians for which the canonical and mechanical momenta of the system coincide lead to operationally meaningful dynamics. Applying this insight to quantum electrodynamics (QED), we derive the master equation for bremsstrahlung due to an accelerated nonrelativistic electron upto second order in the interaction. The resulting reduced dynamics predicts decoherence in the position basis and closely matches the Caldeira-Leggett form, thus resolving previous discrepancies in the literature. Our findings have implications for both QED and gravitational decoherence, where similar ambiguities arise.</jats:p>
2025
Gaona-Reyes, J. L.; Altamura, D. G. A.; Bassi, A.
Theoretical limits of protocols for distinguishing different unravelings Journal Article
In: Phys. Rev. Research, vol. 7, no. 4, 2025, ISSN: 2643-1564.
@article{Gaona-Reyes2025,
title = {Theoretical limits of protocols for distinguishing different unravelings},
author = {J. L. Gaona-Reyes and D. G. A. Altamura and A. Bassi},
doi = {10.1103/6qnt-t3wl},
issn = {2643-1564},
year = {2025},
date = {2025-12-15},
journal = {Phys. Rev. Research},
volume = {7},
number = {4},
publisher = {American Physical Society (APS)},
abstract = {<jats:p>Stochastic unravelings of Lindblad-type master equations, such as stochastic Schrödinger equations, provide powerful tools to model open quantum systems and continuous measurement processes. The same master equation can be unraveled in different ways; while these unravelings differ at the level of quantum trajectories, by construction they all yield the same averaged dynamics for the density operator. A recent question of both foundational and practical relevance is whether such unravelings can be operationally distinguished, given that certain nonlinear quantities—such as covariances and higher-order moments of conditional expectation values—are unraveling dependent. We show that these quantities cannot be accessed unless the measurement scheme (i.e., the unraveling) is known in advance. This renders any operational protocol to distinguish unravelings fundamentally unfeasible. We further establish that assuming access to such nonlinear quantities without prior knowledge of the unraveling would enable superluminal signaling, violating relativistic causality.</jats:p>},
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<jats:p>Stochastic unravelings of Lindblad-type master equations, such as stochastic Schrödinger equations, provide powerful tools to model open quantum systems and continuous measurement processes. The same master equation can be unraveled in different ways; while these unravelings differ at the level of quantum trajectories, by construction they all yield the same averaged dynamics for the density operator. A recent question of both foundational and practical relevance is whether such unravelings can be operationally distinguished, given that certain nonlinear quantities—such as covariances and higher-order moments of conditional expectation values—are unraveling dependent. We show that these quantities cannot be accessed unless the measurement scheme (i.e., the unraveling) is known in advance. This renders any operational protocol to distinguish unravelings fundamentally unfeasible. We further establish that assuming access to such nonlinear quantities without prior knowledge of the unraveling would enable superluminal signaling, violating relativistic causality.</jats:p>
Piccione, Nicolò; Bassi, Angelo
Hybrid classical-quantum Newtonian gravity with stable vacuum Journal Article
In: Class. Quantum Grav., vol. 42, no. 22, 2025, ISSN: 1361-6382.
@article{Piccione2025c,
title = {Hybrid classical-quantum Newtonian gravity with stable vacuum},
author = {Nicolò Piccione and Angelo Bassi},
doi = {10.1088/1361-6382/ae1540},
issn = {1361-6382},
year = {2025},
date = {2025-11-21},
journal = {Class. Quantum Grav.},
volume = {42},
number = {22},
publisher = {IOP Publishing},
abstract = {Abstract
We investigate the gravitational Poissonian spontaneous localization (GPSL) model, a hybrid classical-quantum model in which classical Newtonian gravity emerges from stochastic collapses of the mass density operator, and consistently couples to quantum matter. Unlike models based on continuous weak measurement schemes, we show that GPSL ensures vacuum stability; this, together with its applicability to identical particles and fields, makes it a promising candidate for a relativistic generalization. We analyze the model’s general properties, and compare its predictions with those based on continuous weak measurement schemes. Notably, here the gravitational feedback enters entirely through the non-Hermitian jump operators, without modifying the unitary part of the dynamics. We show that this leads to a short-range gravitational back-reaction and permits decoherence rates below those of any model based on continuous weak measurement schemes. We provide explicit examples, including the dynamics of a single particle and a rigid sphere, to illustrate the distinctive phenomenology of the model. Finally, we discuss the experimental testability of GPSL, highlighting both interferometric and non-interferometric strategies to constrain its parameters and distinguish it from competing models. },
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Paparelle, Iris; Mousavi, Faezeh; Scazza, Francesco; Bassi, Angelo; Paris, Matteo; Zavatta, Alessandro
Experimental direct quantum communication with squeezed states Journal Article
In: Opt. Express, vol. 33, no. 14, 2025, ISSN: 1094-4087.
@article{Paparelle2025,
title = {Experimental direct quantum communication with squeezed states},
author = {Iris Paparelle and Faezeh Mousavi and Francesco Scazza and Angelo Bassi and Matteo Paris and Alessandro Zavatta},
doi = {10.1364/oe.538593},
issn = {1094-4087},
year = {2025},
date = {2025-06-30},
journal = {Opt. Express},
volume = {33},
number = {14},
publisher = {Optica Publishing Group},
abstract = {<jats:p>Quantum secure direct communication (QSDC) is an evolving quantum communication framework based on transmitting secure information directly through a quantum channel, without relying on key-based encryption such as in quantum key distribution (QKD). Optical QSDC protocols, utilizing discrete and continuous variable encodings, show great promise for future technological applications. We present the first table-top continuous-variable QSDC proof of principle, analyzing its implementation and comparing the use of coherent against squeezed light sources. A simple beam-splitter attack is analyzed by using Wyner wiretap channel theory. Our study illustrates the advantage of squeezed states over coherent ones for enhanced security and reliable communication in lossy and noisy channels. Our practical implementation, utilizing mature telecom components, could foster secure quantum metropolitan networks compatible with advanced multiplexing systems.</jats:p>},
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<jats:p>Quantum secure direct communication (QSDC) is an evolving quantum communication framework based on transmitting secure information directly through a quantum channel, without relying on key-based encryption such as in quantum key distribution (QKD). Optical QSDC protocols, utilizing discrete and continuous variable encodings, show great promise for future technological applications. We present the first table-top continuous-variable QSDC proof of principle, analyzing its implementation and comparing the use of coherent against squeezed light sources. A simple beam-splitter attack is analyzed by using Wyner wiretap channel theory. Our study illustrates the advantage of squeezed states over coherent ones for enhanced security and reliable communication in lossy and noisy channels. Our practical implementation, utilizing mature telecom components, could foster secure quantum metropolitan networks compatible with advanced multiplexing systems.</jats:p>
Abdalla, Adam; Bassi, Angelo; Carlesso, Matteo; et al,
Terrestrial Very-Long-Baseline Atom Interferometry: summary of the second workshop Journal Article
In: EPJ Quantum Technology, vol. 12, no. 42, 2025.
@article{Abdalla2025,
title = {Terrestrial Very-Long-Baseline Atom Interferometry: summary of the second workshop},
author = {Adam Abdalla and Angelo Bassi and Matteo Carlesso and et al},
url = {https://link.springer.com/article/10.1140/epjqt/s40507-025-00344-3},
doi = {10.1140/epjqt/s40507-025-00344-3},
year = {2025},
date = {2025-04-03},
urldate = {2025-04-03},
journal = {EPJ Quantum Technology},
volume = {12},
number = {42},
abstract = {This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial College, April 2024), building on the initial discussions during the inaugural workshop held at CERN in March 2023 (First Terrestrial Very-Long-Baseline Atom Interferometry Workshop, CERN, March 2023). Like the summary of the first workshop (Abend et al. in AVS Quantum Sci. 6:024701, 2024), this document records a critical milestone for the international atom interferometry community. It documents our concerted efforts to evaluate progress, address emerging challenges, and refine strategic directions for future large-scale atom interferometry projects. Our commitment to collaboration is manifested by the integration of diverse expertise and the coordination of international resources, all aimed at advancing the frontiers of atom interferometry physics and technology, as set out in a Memorandum of Understanding signed by over 50 institutions (Memorandum of Understanding for the Terrestrial Very Long Baseline Atom Interferometer Study).},
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This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial College, April 2024), building on the initial discussions during the inaugural workshop held at CERN in March 2023 (First Terrestrial Very-Long-Baseline Atom Interferometry Workshop, CERN, March 2023). Like the summary of the first workshop (Abend et al. in AVS Quantum Sci. 6:024701, 2024), this document records a critical milestone for the international atom interferometry community. It documents our concerted efforts to evaluate progress, address emerging challenges, and refine strategic directions for future large-scale atom interferometry projects. Our commitment to collaboration is manifested by the integration of diverse expertise and the coordination of international resources, all aimed at advancing the frontiers of atom interferometry physics and technology, as set out in a Memorandum of Understanding signed by over 50 institutions (Memorandum of Understanding for the Terrestrial Very Long Baseline Atom Interferometer Study).
Piccione, Nicolò; Bassi, Angelo
Exploring the effects of mass dependence in spontaneous collapse models Journal Article
In: Phys. Rev. A, vol. 112, no. 1, 2025, ISSN: 2469-9934.
@article{Piccione2025,
title = {Exploring the effects of mass dependence in spontaneous collapse models},
author = {Nicolò Piccione and Angelo Bassi},
doi = {10.1103/2yy5-tj85},
issn = {2469-9934},
journal = {Phys. Rev. A},
volume = {112},
number = {1},
publisher = {American Physical Society (APS)},
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2024
Figurato, Laria; Dirindin, Marco; Gaona-Reyes, José Luis; Carlesso, Matteo; Bassi, Angelo; Donadi, Sandro
On the effectiveness of the collapse in the Diósi–Penrose model Journal Article
In: New J. Phys., vol. 26, no. 11, 2024, ISSN: 1367-2630.
@article{Figurato2024b,
title = {On the effectiveness of the collapse in the Diósi–Penrose model},
author = {Laria Figurato and Marco Dirindin and José Luis Gaona-Reyes and Matteo Carlesso and Angelo Bassi and Sandro Donadi},
doi = {10.1088/1367-2630/ad8c77},
issn = {1367-2630},
year = {2024},
date = {2024-11-01},
journal = {New J. Phys.},
volume = {26},
number = {11},
publisher = {IOP Publishing},
abstract = {Abstract
The possibility that gravity plays a role in the collapse of the quantum wave function has been considered in the literature, and it is of relevance not only because it would provide a solution to the measurement problem in quantum theory, but also because it would give a new and unexpected twist to the search for a unified theory of quantum and gravitational phenomena, possibly overcoming the current impasse. The Diósi–Penrose model is the most popular incarnation of this idea. It predicts a progressive breakdown of quantum superpositions when the mass of the system increases; as such, it is susceptible to experimental verification. Current experiments set a lower bound
R
0
≳
4
R
0
≲
10
6
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Figurato, Laria; Bassi, Angelo; Donadi, Sandro
On the testability of the Károlyházy model Journal Article
In: New J. Phys., vol. 26, no. 1, 2024, ISSN: 1367-2630.
@article{Figurato2024,
title = {On the testability of the Károlyházy model},
author = {Laria Figurato and Angelo Bassi and Sandro Donadi},
doi = {10.1088/1367-2630/ad1499},
issn = {1367-2630},
year = {2024},
date = {2024-01-01},
journal = {New J. Phys.},
volume = {26},
number = {1},
publisher = {IOP Publishing},
abstract = {Abstract
Károlyházy’s original proposal, suggesting that space-time fluctuations could be a source of decoherence in space, faced a significant challenge due to an unexpectedly high emission of radiation (13 orders of magnitude more than what was observed in the latest experiment). To address this issue, we reevaluated Károlyházy’s assumption that the stochastic metric fluctuation must adhere to a wave equation. By considering more general correlation functions of space-time fluctuations, we resolve the problem and consequently revive the aforementioned proposal. },
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Altamura, Davide Giordano Ario; Carlesso, Matteo; Donadi, Sandro; Bassi, Angelo
In: Phys. Rev. A, vol. 109, no. 6, 2024, ISSN: 2469-9934.
@article{Altamura2024,
title = {Noninterferometric rotational test of the continuous spontaneous localization model: Enhancement of the collapse noise through shape optimization},
author = {Davide Giordano Ario Altamura and Matteo Carlesso and Sandro Donadi and Angelo Bassi},
doi = {10.1103/physreva.109.062212},
issn = {2469-9934},
journal = {Phys. Rev. A},
volume = {109},
number = {6},
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Piscicchia, Kristian; Donadi, Sandro; Manti, Simone; Bassi, Angelo; Derakhshani, Maaneli; Diósi, Lajos; Curceanu, Catalina
X-Ray Emission from Atomic Systems Can Distinguish between Prevailing Dynamical Wave-Function Collapse Models Journal Article
In: Phys. Rev. Lett., vol. 132, no. 25, 2024, ISSN: 1079-7114.
@article{Piscicchia2024,
title = {X-Ray Emission from Atomic Systems Can Distinguish between Prevailing Dynamical Wave-Function Collapse Models},
author = {Kristian Piscicchia and Sandro Donadi and Simone Manti and Angelo Bassi and Maaneli Derakhshani and Lajos Diósi and Catalina Curceanu},
doi = {10.1103/physrevlett.132.250203},
issn = {1079-7114},
journal = {Phys. Rev. Lett.},
volume = {132},
number = {25},
publisher = {American Physical Society (APS)},
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Vischi, Michele; Bartolomeo, Giovanni Di; Proietti, Massimiliano; Koudia, Seid; Cerocchi, Filippo; Dispenza, Massimiliano; Bassi, Angelo
Simulating photonic devices with noisy optical elements Journal Article
In: Phys. Rev. Research, vol. 6, no. 3, 2024, ISSN: 2643-1564.
@article{Vischi2024,
title = {Simulating photonic devices with noisy optical elements},
author = {Michele Vischi and Giovanni Di Bartolomeo and Massimiliano Proietti and Seid Koudia and Filippo Cerocchi and Massimiliano Dispenza and Angelo Bassi},
doi = {10.1103/physrevresearch.6.033337},
issn = {2643-1564},
journal = {Phys. Rev. Research},
volume = {6},
number = {3},
publisher = {American Physical Society (APS)},
abstract = {Quantum computers are inherently affected by noise. While in the long term, error correction codes will account for noise at the cost of increasing physical qubits, in the near term, the performance of any quantum algorithm should be tested and simulated in the presence of noise. As noise acts on the hardware, the classical simulation of a quantum algorithm should not be agnostic on the platform used for the computation. In this paper, we apply the recently proposed noisy gates approach to efficiently simulate noisy optical circuits described in the dual rail framework. The evolution of the state vector is simulated directly, without requiring the mapping to the density matrix framework. Notably, we test the method on both the gate-based and measurement-based quantum computing models, showing that the approach is very versatile. We also evaluate the performance of a photonic variational quantum algorithm to solve the MAX-2-CUT problem. In particular we design and simulate an ansatz, which is resilient to photon losses up to p ∼ 10 − 3
Published by the American Physical Society
2024
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Bartolomeo, Giovanni Di; Vischi, Michele; Feri, Tommaso; Bassi, Angelo; Donadi, Sandro
Efficient quantum algorithm to simulate open systems through a single environmental qubit Journal Article
In: Phys. Rev. Research, vol. 6, no. 4, 2024, ISSN: 2643-1564.
@article{DiBartolomeo2024b,
title = {Efficient quantum algorithm to simulate open systems through a single environmental qubit},
author = {Giovanni Di Bartolomeo and Michele Vischi and Tommaso Feri and Angelo Bassi and Sandro Donadi},
doi = {10.1103/physrevresearch.6.043321},
issn = {2643-1564},
journal = {Phys. Rev. Research},
volume = {6},
number = {4},
publisher = {American Physical Society (APS)},
abstract = {We present an efficient algorithm for simulating open quantum systems dynamics described by the Lindblad master equation on quantum computers, addressing key challenges in the field. In contrast to existing approaches, our method achieves two significant advancements. First, we employ a repetition of unitary gates on a set of n m m n
Published by the American Physical Society
2024
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2023
Kaltenbaek, Rainer; Arndt, Markus; Aspelmeyer, Markus; Barker, Peter F; Bassi, Angelo; Bateman, James; Belenchia, Alessio; Bergé, Joel; Braxmaier, Claus; Bose, Sougato; Christophe, Bruno; Cole, Garrett D; Curceanu, Catalina; Datta, Animesh; Debiossac, Maxime; Delić, Uroš; Diósi, Lajos; Geraci, Andrew A; Gerlich, Stefan; Guerlin, Christine; Hechenblaikner, Gerald; Heidmann, Antoine; Herrmann, Sven; Hornberger, Klaus; Johann, Ulrich; Kiesel, Nikolai; Lämmerzahl, Claus; LeBrun, Thomas W; Milburn, Gerard J; Millen, James; Mohageg, Makan; Moore, David C; Morley, Gavin W; Nimmrichter, Stefan; Novotny, Lukas; Oi, Daniel K L; Paternostro, Mauro; Riedel, C Jess; Rodrigues, Manuel; Rondin, Loïc; Roura, Albert; Schleich, Wolfgang P; Schuldt, Thilo; Stickler, Benjamin A; Ulbricht, Hendrik; Vogt, Christian; Wörner, Lisa
Research campaign: Macroscopic quantum resonators (MAQRO) Journal Article
In: Quantum Sci. Technol., vol. 8, no. 1, 2023, ISSN: 2058-9565.
@article{Kaltenbaek2023,
title = {Research campaign: Macroscopic quantum resonators (MAQRO)},
author = {Rainer Kaltenbaek and Markus Arndt and Markus Aspelmeyer and Peter F Barker and Angelo Bassi and James Bateman and Alessio Belenchia and Joel Bergé and Claus Braxmaier and Sougato Bose and Bruno Christophe and Garrett D Cole and Catalina Curceanu and Animesh Datta and Maxime Debiossac and Uroš Delić and Lajos Diósi and Andrew A Geraci and Stefan Gerlich and Christine Guerlin and Gerald Hechenblaikner and Antoine Heidmann and Sven Herrmann and Klaus Hornberger and Ulrich Johann and Nikolai Kiesel and Claus Lämmerzahl and Thomas W LeBrun and Gerard J Milburn and James Millen and Makan Mohageg and David C Moore and Gavin W Morley and Stefan Nimmrichter and Lukas Novotny and Daniel K L Oi and Mauro Paternostro and C Jess Riedel and Manuel Rodrigues and Loïc Rondin and Albert Roura and Wolfgang P Schleich and Thilo Schuldt and Benjamin A Stickler and Hendrik Ulbricht and Christian Vogt and Lisa Wörner},
doi = {10.1088/2058-9565/aca3cd},
issn = {2058-9565},
year = {2023},
date = {2023-01-01},
journal = {Quantum Sci. Technol.},
volume = {8},
number = {1},
publisher = {IOP Publishing},
abstract = {Abstract
The objective of the proposed macroscopic quantum resonators (MAQRO) mission is to harness space for achieving long free-fall times, extreme vacuum, nano-gravity, and cryogenic temperatures to test the foundations of physics in macroscopic quantum experiments at the interface with gravity. Developing the necessary technologies, achieving the required sensitivities and providing the necessary isolation of macroscopic quantum systems from their environment will lay the path for developing novel quantum sensors. Earlier studies showed that the proposal is feasible but that several critical challenges remain, and key technologies need to be developed. Recent scientific and technological developments since the original proposal of MAQRO promise the potential for achieving additional science objectives. The proposed research campaign aims to advance the state of the art and to perform the first macroscopic quantum experiments in space. Experiments on the ground, in micro-gravity, and in space will drive the proposed research campaign during the current decade to enable the implementation of MAQRO within the subsequent decade. },
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Donadi, Sandro; Ferialdi, Luca; Bassi, Angelo
Collapse Dynamics Are Diffusive Journal Article
In: Phys. Rev. Lett., vol. 130, no. 23, 2023, ISSN: 1079-7114.
@article{Donadi2023,
title = {Collapse Dynamics Are Diffusive},
author = {Sandro Donadi and Luca Ferialdi and Angelo Bassi},
doi = {10.1103/physrevlett.130.230202},
issn = {1079-7114},
journal = {Phys. Rev. Lett.},
volume = {130},
number = {23},
publisher = {American Physical Society (APS)},
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Gundhi, Anirudh; Bassi, Angelo
Motion of an electron through vacuum fluctuations Journal Article
In: Phys. Rev. A, vol. 107, no. 6, 2023, ISSN: 2469-9934.
@article{Gundhi2023,
title = {Motion of an electron through vacuum fluctuations},
author = {Anirudh Gundhi and Angelo Bassi},
doi = {10.1103/physreva.107.062801},
issn = {2469-9934},
journal = {Phys. Rev. A},
volume = {107},
number = {6},
publisher = {American Physical Society (APS)},
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Bassi, Angelo; Dorato, Mauro; Ulbricht, Hendrik
Collapse Models: A Theoretical, Experimental and Philosophical Review Journal Article
In: Entropy, vol. 25, no. 4, 2023, ISSN: 1099-4300.
@article{Bassi2023,
title = {Collapse Models: A Theoretical, Experimental and Philosophical Review},
author = {Angelo Bassi and Mauro Dorato and Hendrik Ulbricht},
doi = {10.3390/e25040645},
issn = {1099-4300},
journal = {Entropy},
volume = {25},
number = {4},
publisher = {MDPI AG},
abstract = {In this paper, we review and connect the three essential conditions needed by the collapse model to achieve a complete and exact formulation, namely the theoretical, the experimental, and the ontological ones. These features correspond to the three parts of the paper. In any empirical science, the first two features are obviously connected but, as is well known, among the different formulations and interpretations of non-relativistic quantum mechanics, only collapse models, as the paper well illustrates with a richness of details, have experimental consequences. Finally, we show that a clarification of the ontological intimations of collapse models is needed for at least three reasons: (1) to respond to the indispensable task of answering the question ’what are collapse models (and in general any physical theory) about?’; (2) to achieve a deeper understanding of their different formulations; (3) to enlarge the panorama of possible readings of a theory, which historically has often played a fundamental heuristic role. },
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Napolitano, Fabrizio; Addazi, Andrea; Bassi, Angelo; Bazzi, Massimiliano; Bragadireanu, Mario; Cargnelli, Michael; Clozza, Alberto; Paolis, Luca De; Grande, Raffaele Del; Derakhshani, Maaneli; Donadi, Sandro; Fiorini, Carlo; Guaraldo, Carlo; Iliescu, Mihail; Laubenstein, Matthias; Manti, Simone; Marcianò, Antonino; Marton, Johann; Miliucci, Marco; Milotti, Edoardo; Piscicchia, Kristian; Porcelli, Alessio; Scordo, Alessandro; Sgaramella, Francesco; Sirghi, Diana Laura; Sirghi, Florin; Doce, Oton Vazquez; Zmeskal, Johann; Curceanu, Catalina
Underground Tests of Quantum Mechanics by the VIP Collaboration at Gran Sasso Journal Article
In: Symmetry, vol. 15, no. 2, 2023, ISSN: 2073-8994.
@article{Napolitano2023,
title = {Underground Tests of Quantum Mechanics by the VIP Collaboration at Gran Sasso},
author = {Fabrizio Napolitano and Andrea Addazi and Angelo Bassi and Massimiliano Bazzi and Mario Bragadireanu and Michael Cargnelli and Alberto Clozza and Luca De Paolis and Raffaele Del Grande and Maaneli Derakhshani and Sandro Donadi and Carlo Fiorini and Carlo Guaraldo and Mihail Iliescu and Matthias Laubenstein and Simone Manti and Antonino Marcianò and Johann Marton and Marco Miliucci and Edoardo Milotti and Kristian Piscicchia and Alessio Porcelli and Alessandro Scordo and Francesco Sgaramella and Diana Laura Sirghi and Florin Sirghi and Oton Vazquez Doce and Johann Zmeskal and Catalina Curceanu},
doi = {10.3390/sym15020480},
issn = {2073-8994},
journal = {Symmetry},
volume = {15},
number = {2},
publisher = {MDPI AG},
abstract = {Modern physics lays its foundations on the pillars of Quantum Mechanics (QM), which has been proven successful to describe the microscopic world of atoms and particles, leading to the construction of the Standard Model. Despite the big success, the old open questions at its very heart, such as the measurement problem and the wave function collapse, are still open. Various theories consider scenarios which could encompass a departure from the predictions of the standard QM, such as extra-dimensions or deformations of the Lorentz/Poincaré symmetries. At the Italian National Gran Sasso underground Laboratory LNGS, we search for evidence of new physics proceeding from models beyond standard QM, using radiation detectors. Collapse models addressing the foundations of QM, such as the gravity-related Diósi–Penrose (DP) and Continuous Spontaneous Localization (CSL) models, predict the emission of spontaneous radiation, which allows experimental tests. Using a high-purity Germanium detector, we could exclude the natural parameterless version of the DP model and put strict bounds on the CSL one. In addition, forbidden atomic transitions could prove a possible violation of the Pauli Exclusion Principle (PEP) in open and closed systems. The VIP-2 experiment is currently in operation, aiming at detecting PEP-violating signals in Copper with electrons; the VIP-3 experiment upgrade is foreseen to become operative in the next few years. We discuss the VIP-Lead experiment on closed systems, and the strong bounds it sets on classes of non-commutative quantum gravity theories, such as the θ–Poincaré theory. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ribezzo, Domenico; Zahidy, Mujtaba; Vagniluca, Ilaria; Biagi, Nicola; Francesconi, Saverio; Occhipinti, Tommaso; Oxenløwe, Leif K.; Lončarić, Martin; Cvitić, Ivan; Stipčević, Mario; Pušavec, Žiga; Kaltenbaek, Rainer; Ramšak, Anton; Cesa, Francesco; Giorgetti, Giorgio; Scazza, Francesco; Bassi, Angelo; Natale, Paolo De; Cataliotti, Francesco Saverio; Inguscio, Massimo; Bacco, Davide; Zavatta, Alessandro
Deploying an Inter‐European Quantum Network Journal Article
In: Adv Quantum Tech, vol. 6, no. 2, 2023, ISSN: 2511-9044.
@article{Ribezzo2022,
title = {Deploying an Inter‐European Quantum Network},
author = {Domenico Ribezzo and Mujtaba Zahidy and Ilaria Vagniluca and Nicola Biagi and Saverio Francesconi and Tommaso Occhipinti and Leif K. Oxenløwe and Martin Lončarić and Ivan Cvitić and Mario Stipčević and Žiga Pušavec and Rainer Kaltenbaek and Anton Ramšak and Francesco Cesa and Giorgio Giorgetti and Francesco Scazza and Angelo Bassi and Paolo De Natale and Francesco Saverio Cataliotti and Massimo Inguscio and Davide Bacco and Alessandro Zavatta},
doi = {10.1002/qute.202200061},
issn = {2511-9044},
journal = {Adv Quantum Tech},
volume = {6},
number = {2},
publisher = {Wiley},
abstract = {Abstract Around 40 years have passed since the first pioneering works introduced the possibility of using quantum physics to enhance communications safety. Nowadays, quantum key distribution (QKD) exited the physics laboratories to become a mature technology, triggering the attention of States, military forces, banks, and private corporations. This work takes on the challenge of bringing QKD closer to a consumer technology: deployed optical fibers by telecommunication companies of different States have been used to realize a quantum network, the first‐ever connecting three different countries. This work also emphasizes the necessity of networks where QKD can come up besides classical communications, whose coexistence currently represents the main limitation of this technology. This network connects Trieste to Rijeka and Ljubljana via a trusted node in Postojna. A key rate of over 3 kbps in the shortest link and a 7‐hour‐long measurement demonstrate the system's stability and reliability. The network has been used to present the QKD at the G20 Digital Ministers' Meeting in Trieste. The experimental results, together with the interest that one of the most important events of international politics has attracted, showcase the maturity of the QKD technology bundle, placing it in the spotlight for consumer applications in the near term. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Piscicchia, Kristian; Porcelli, Alessio; Bassi, Angelo; Bazzi, Massimiliano; Bragadireanu, Mario; Cargnelli, Michael; Clozza, Alberto; Paolis, Luca De; Grande, Raffaele Del; Derakhshani, Maaneli; Lajos, Diósi; Donadi, Sandro; Guaraldo, Carlo; Iliescu, Mihai; Laubenstein, Matthias; Manti, Simone; Marton, Johann; Miliucci, Marco; Napolitano, Fabrizio; Scordo, Alessandro; Sgaramella, Francesco; Sirghi, Diana Laura; Sirghi, Florin; Doce, Oton Vazquez; Zmeskal, Johann; Curceanu, Catalina
A Novel Approach to Parameter Determination of the Continuous Spontaneous Localization Collapse Model Journal Article
In: Entropy, vol. 25, no. 2, 2023, ISSN: 1099-4300.
@article{Piscicchia2023,
title = {A Novel Approach to Parameter Determination of the Continuous Spontaneous Localization Collapse Model},
author = {Kristian Piscicchia and Alessio Porcelli and Angelo Bassi and Massimiliano Bazzi and Mario Bragadireanu and Michael Cargnelli and Alberto Clozza and Luca De Paolis and Raffaele Del Grande and Maaneli Derakhshani and Diósi Lajos and Sandro Donadi and Carlo Guaraldo and Mihai Iliescu and Matthias Laubenstein and Simone Manti and Johann Marton and Marco Miliucci and Fabrizio Napolitano and Alessandro Scordo and Francesco Sgaramella and Diana Laura Sirghi and Florin Sirghi and Oton Vazquez Doce and Johann Zmeskal and Catalina Curceanu},
doi = {10.3390/e25020295},
issn = {1099-4300},
journal = {Entropy},
volume = {25},
number = {2},
publisher = {MDPI AG},
abstract = {Models of dynamical wave function collapse consistently describe the breakdown of the quantum superposition with the growing mass of the system by introducing non-linear and stochastic modifications to the standard Schrödinger dynamics. Among them, Continuous Spontaneous Localization (CSL) was extensively investigated both theoretically and experimentally. Measurable consequences of the collapse phenomenon depend on different combinations of the phenomenological parameters of the model—the strength λ and the correlation length rC—and have led, so far, to the exclusion of regions of the admissible (λ−rC) parameters space. We developed a novel approach to disentangle the λ and rC probability density functions, which discloses a more profound statistical insight. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bartolomeo, Giovanni Di; Vischi, Michele; Cesa, Francesco; Wixinger, Roman; Grossi, Michele; Donadi, Sandro; Bassi, Angelo
Noisy gates for simulating quantum computers Journal Article
In: Phys. Rev. Research, vol. 5, no. 4, 2023, ISSN: 2643-1564.
@article{DiBartolomeo2023b,
title = {Noisy gates for simulating quantum computers},
author = {Giovanni Di Bartolomeo and Michele Vischi and Francesco Cesa and Roman Wixinger and Michele Grossi and Sandro Donadi and Angelo Bassi},
doi = {10.1103/physrevresearch.5.043210},
issn = {2643-1564},
journal = {Phys. Rev. Research},
volume = {5},
number = {4},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2022
Donadi, Sandro; Bassi, Angelo
Seven nonstandard models coupling quantum matter and gravity Journal Article
In: vol. 4, no. 2, 2022, ISSN: 2639-0213.
@article{Donadi2022,
title = {Seven nonstandard models coupling quantum matter and gravity},
author = {Sandro Donadi and Angelo Bassi},
doi = {10.1116/5.0089318},
issn = {2639-0213},
year = {2022},
date = {2022-06-01},
volume = {4},
number = {2},
publisher = {American Vacuum Society},
abstract = {We review seven models which consistently couple quantum matter and (Newtonian) gravity in a nonstandard way. For each of them, we present the underlying motivations, the main equations, and, when available, a comparison with experimental data. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Alonso, I.; Alpigiani, C.; Altschul, B; Bassi, A.
Cold atoms in space: community workshop summary and proposed road-map Journal Article
In: EPJ Quantum Technology, vol. 9, pp. 30, 2022.
@article{Alonso2022,
title = {Cold atoms in space: community workshop summary and proposed road-map},
author = {Alonso, I. and Alpigiani, C. and Altschul, B and Bassi, A.},
doi = {10.1140/epjqt/s40507-022-00147-w},
year = {2022},
date = {2022-04-12},
urldate = {2022-04-12},
journal = {EPJ Quantum Technology},
volume = {9},
pages = {30},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Carlesso, Matteo; Donadi, Sandro; Ferialdi, Luca; Paternostro, Mauro; Ulbricht, Hendrik; Bassi, Angelo
Present status and future challenges of non-interferometric tests of collapse models Journal Article
In: Nat. Phys., vol. 18, no. 3, pp. 243–250, 2022, ISSN: 1745-2481.
@article{Carlesso2022,
title = {Present status and future challenges of non-interferometric tests of collapse models},
author = {Matteo Carlesso and Sandro Donadi and Luca Ferialdi and Mauro Paternostro and Hendrik Ulbricht and Angelo Bassi},
doi = {10.1038/s41567-021-01489-5},
issn = {1745-2481},
journal = {Nat. Phys.},
volume = {18},
number = {3},
pages = {243--250},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vischi, Michele; Ferialdi, Luca; Trombettoni, Andrea; Bassi, Angelo
Possible limits on superconducting quantum computers from spontaneous wave-function collapse models Journal Article
In: Phys. Rev. B, vol. 106, no. 17, 2022, ISSN: 2469-9969.
@article{Vischi2022,
title = {Possible limits on superconducting quantum computers from spontaneous wave-function collapse models},
author = {Michele Vischi and Luca Ferialdi and Andrea Trombettoni and Angelo Bassi},
doi = {10.1103/physrevb.106.174506},
issn = {2469-9969},
journal = {Phys. Rev. B},
volume = {106},
number = {17},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Belenchia, Alessio; Carlesso, Matteo; Bayraktar, Ömer; Dequal, Daniele; Derkach, Ivan; Gasbarri, Giulio; Herr, Waldemar; Li, Ying Lia; Rademacher, Markus; Sidhu, Jasminder; Oi, Daniel K. L.; Seidel, Stephan T.; Kaltenbaek, Rainer; Marquardt, Christoph; Ulbricht, Hendrik; Usenko, Vladyslav C.; Wörner, Lisa; Xuereb, André; Paternostro, Mauro; Bassi, Angelo
Quantum physics in space Journal Article
In: Physics Reports, vol. 951, pp. 1–70, 2022, ISSN: 0370-1573.
@article{Belenchia2022,
title = {Quantum physics in space},
author = {Alessio Belenchia and Matteo Carlesso and Ömer Bayraktar and Daniele Dequal and Ivan Derkach and Giulio Gasbarri and Waldemar Herr and Ying Lia Li and Markus Rademacher and Jasminder Sidhu and Daniel K.L. Oi and Stephan T. Seidel and Rainer Kaltenbaek and Christoph Marquardt and Hendrik Ulbricht and Vladyslav C. Usenko and Lisa Wörner and André Xuereb and Mauro Paternostro and Angelo Bassi},
doi = {10.1016/j.physrep.2021.11.004},
issn = {0370-1573},
journal = {Physics Reports},
volume = {951},
pages = {1--70},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bassi, A.; Cacciapuoti, L.; Capozziello, S.; Dell’Agnello, S.; Diamanti, E.; Giulini, D.; Iess, L.; Jetzer, P.; Joshi, S. K.; Landragin, A.; Poncin-Lafitte, C. Le; Rasel, E.; Roura, A.; Salomon, C.; Ulbricht, H.
A way forward for fundamental physics in space Journal Article
In: npj Microgravity, vol. 8, no. 1, 2022, ISSN: 2373-8065.
@article{Bassi2022,
title = {A way forward for fundamental physics in space},
author = {A. Bassi and L. Cacciapuoti and S. Capozziello and S. Dell’Agnello and E. Diamanti and D. Giulini and L. Iess and P. Jetzer and S. K. Joshi and A. Landragin and C. Le Poncin-Lafitte and E. Rasel and A. Roura and C. Salomon and H. Ulbricht},
doi = {10.1038/s41526-022-00229-0},
issn = {2373-8065},
journal = {npj Microgravity},
volume = {8},
number = {1},
publisher = {Springer Science and Business Media LLC},
abstract = {Abstract Space-based research can provide a major leap forward in the study of key open questions in the fundamental physics domain. They include the validity of Einstein’s Equivalence principle, the origin and the nature of dark matter and dark energy, decoherence and collapse models in quantum mechanics, and the physics of quantum many-body systems. Cold-atom sensors and quantum technologies have drastically changed the approach to precision measurements. Atomic clocks and atom interferometers as well as classical and quantum links can be used to measure tiny variations of the space-time metric, elusive accelerations, and faint forces to test our knowledge of the physical laws ruling the Universe. In space, such instruments can benefit from unique conditions that allow improving both their precision and the signal to be measured. In this paper, we discuss the scientific priorities of a space-based research program in fundamental physics. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2021
Belenchia, Alessio; Carlesso, Matteo; Donadi, Sandro; Gasbarri, Giulio; Ulbricht, Hendrik; Bassi, Angelo; Paternostro, Mauro
Test quantum mechanics in space — invest US$1 billion Journal Article
In: Nature, vol. 596, no. 7870, pp. 32–34, 2021, ISSN: 1476-4687.
@article{Belenchia2021,
title = {Test quantum mechanics in space — invest US$1 billion},
author = {Alessio Belenchia and Matteo Carlesso and Sandro Donadi and Giulio Gasbarri and Hendrik Ulbricht and Angelo Bassi and Mauro Paternostro},
doi = {10.1038/d41586-021-02091-8},
issn = {1476-4687},
year = {2021},
date = {2021-08-05},
journal = {Nature},
volume = {596},
number = {7870},
pages = {32--34},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jones, C; Gasbarri, G; Bassi, A
Mass-coupled relativistic spontaneous collapse models Journal Article
In: J. Phys. A: Math. Theor., vol. 54, no. 29, 2021, ISSN: 1751-8121.
@article{Jones2021b,
title = {Mass-coupled relativistic spontaneous collapse models},
author = {C Jones and G Gasbarri and A Bassi},
doi = {10.1088/1751-8121/abf871},
issn = {1751-8121},
year = {2021},
date = {2021-07-23},
journal = {J. Phys. A: Math. Theor.},
volume = {54},
number = {29},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Rijavec, Simone; Carlesso, Matteo; Bassi, Angelo; Vedral, Vlatko; Marletto, Chiara
Decoherence effects in non-classicality tests of gravity Journal Article
In: New J. Phys., vol. 23, no. 4, 2021, ISSN: 1367-2630.
@article{Rijavec2021,
title = {Decoherence effects in non-classicality tests of gravity},
author = {Simone Rijavec and Matteo Carlesso and Angelo Bassi and Vlatko Vedral and Chiara Marletto},
doi = {10.1088/1367-2630/abf3eb},
issn = {1367-2630},
year = {2021},
date = {2021-04-01},
journal = {New J. Phys.},
volume = {23},
number = {4},
publisher = {IOP Publishing},
abstract = {Abstract
The experimental observation of a clear quantum signature of gravity is believed to be out of the grasp of current technology. However, several recent promising proposals to test the possible existence of non-classical features of gravity seem to be accessible by the state-of-art table-top experiments. Among them, some aim at measuring the gravitationally induced entanglement between two masses which would be a distinct non-classical signature of gravity. We explicitly study, in two of these proposals, the effects of decoherence on the system’s dynamics by monitoring the corresponding degree of entanglement. We identify the required experimental conditions necessary to perform successfully the experiments. In parallel, we account also for the possible effects of the continuous spontaneous localization (CSL) model, which is the most known among the models of spontaneous wavefunction collapse. We find that any value of the parameters of the CSL model would completely hinder the generation of gravitationally induced entanglement. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Adler, S L; Bassi, A; Carlesso, Matteo
The continuous spontaneous localization layering effect from a lattice perspective Journal Article
In: J. Phys. A: Math. Theor., vol. 54, no. 8, 2021, ISSN: 1751-8121.
@article{Adler2021,
title = {The continuous spontaneous localization layering effect from a lattice perspective},
author = {S L Adler and A Bassi and Matteo Carlesso},
doi = {10.1088/1751-8121/abdbc8},
issn = {1751-8121},
year = {2021},
date = {2021-02-26},
urldate = {2021-02-26},
journal = {J. Phys. A: Math. Theor.},
volume = {54},
number = {8},
publisher = {IOP Publishing},
abstract = {<jats:title>Abstract</jats:title>
<jats:p>For a solid lattice, we rederive the continuous spontaneous localization (CSL) noise total energy gain of a test mass starting from a Lindblad formulation, and from a similar starting point rederive the geometry factor governing center of mass energy gain. We then suggest that the geometry factor can be used as a way to distinguish between low temperature cantilever motion saturation arising from CSL noise, and saturation arising from thermal leakage.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
<jats:title>Abstract</jats:title>
<jats:p>For a solid lattice, we rederive the continuous spontaneous localization (CSL) noise total energy gain of a test mass starting from a Lindblad formulation, and from a similar starting point rederive the geometry factor governing center of mass energy gain. We then suggest that the geometry factor can be used as a way to distinguish between low temperature cantilever motion saturation arising from CSL noise, and saturation arising from thermal leakage.</jats:p>
<jats:p>For a solid lattice, we rederive the continuous spontaneous localization (CSL) noise total energy gain of a test mass starting from a Lindblad formulation, and from a similar starting point rederive the geometry factor governing center of mass energy gain. We then suggest that the geometry factor can be used as a way to distinguish between low temperature cantilever motion saturation arising from CSL noise, and saturation arising from thermal leakage.</jats:p>
Carlesso, Matteo; Naeij, Hamid Reza; Bassi, Angelo
Perturbative algorithm for rotational decoherence Journal Article
In: Phys. Rev. A, vol. 103, no. 3, 2021, ISSN: 2469-9934.
@article{Carlesso2021,
title = {Perturbative algorithm for rotational decoherence},
author = {Matteo Carlesso and Hamid Reza Naeij and Angelo Bassi},
doi = {10.1103/physreva.103.032220},
issn = {2469-9934},
journal = {Phys. Rev. A},
volume = {103},
number = {3},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Donadi, Sandro; Piscicchia, Kristian; Curceanu, Catalina; Diósi, Lajos; Laubenstein, Matthias; Bassi, Angelo
Underground test of gravity-related wave function collapse Journal Article
In: Nat. Phys., vol. 17, no. 1, pp. 74–78, 2021, ISSN: 1745-2481.
@article{Donadi2020,
title = {Underground test of gravity-related wave function collapse},
author = {Sandro Donadi and Kristian Piscicchia and Catalina Curceanu and Lajos Diósi and Matthias Laubenstein and Angelo Bassi},
doi = {10.1038/s41567-020-1008-4},
issn = {1745-2481},
journal = {Nat. Phys.},
volume = {17},
number = {1},
pages = {74--78},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bartolomeo, Giovanni Di; Carlesso, Matteo; Bassi, Angelo
Gravity as a classical channel and its dissipative generalization Journal Article
In: Phys. Rev. D, vol. 104, no. 10, 2021, ISSN: 2470-0029.
@article{DiBartolomeo2021,
title = {Gravity as a classical channel and its dissipative generalization},
author = {Giovanni Di Bartolomeo and Matteo Carlesso and Angelo Bassi},
doi = {10.1103/physrevd.104.104027},
issn = {2470-0029},
journal = {Phys. Rev. D},
volume = {104},
number = {10},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Donadi, Sandro; Piscicchia, Kristian; Grande, Raffaele Del; Curceanu, Catalina; Laubenstein, Matthias; Bassi, Angelo
Novel CSL bounds from the noise-induced radiation emission from atoms Journal Article
In: Eur. Phys. J. C, vol. 81, no. 8, 2021, ISSN: 1434-6052.
@article{Donadi2021,
title = {Novel CSL bounds from the noise-induced radiation emission from atoms},
author = {Sandro Donadi and Kristian Piscicchia and Raffaele Del Grande and Catalina Curceanu and Matthias Laubenstein and Angelo Bassi},
doi = {10.1140/epjc/s10052-021-09556-0},
issn = {1434-6052},
journal = {Eur. Phys. J. C},
volume = {81},
number = {8},
publisher = {Springer Science and Business Media LLC},
abstract = {Abstract We study spontaneous radiation emission from matter, as predicted by the Continuous Spontaneous Localization (CSL) collapse model. We show that, in an appropriate range of energies of the emitted radiation, the largest contribution comes from the atomic nuclei. Specifically, we show that in the energy range $$Esim 10,-,10^{5}$$
E
∼
10
-
10
5
$$r_Cle 10^{-6}$$
r
C
≤
10
-
6
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gasbarri, Giulio; Belenchia, Alessio; Carlesso, Matteo; Donadi, Sandro; Bassi, Angelo; Kaltenbaek, Rainer; Paternostro, Mauro; Ulbricht, Hendrik
Testing the foundation of quantum physics in space via Interferometric and non-interferometric experiments with mesoscopic nanoparticles Journal Article
In: Commun Phys, vol. 4, no. 1, 2021, ISSN: 2399-3650.
@article{Gasbarri2021,
title = {Testing the foundation of quantum physics in space via Interferometric and non-interferometric experiments with mesoscopic nanoparticles},
author = {Giulio Gasbarri and Alessio Belenchia and Matteo Carlesso and Sandro Donadi and Angelo Bassi and Rainer Kaltenbaek and Mauro Paternostro and Hendrik Ulbricht},
doi = {10.1038/s42005-021-00656-7},
issn = {2399-3650},
journal = {Commun Phys},
volume = {4},
number = {1},
publisher = {Springer Science and Business Media LLC},
abstract = {Abstract Quantum technologies are opening novel avenues for applied and fundamental science at an impressive pace. In this perspective article, we focus on the promises coming from the combination of quantum technologies and space science to test the very foundations of quantum physics and, possibly, new physics. In particular, we survey the field of mesoscopic superpositions of nanoparticles and the potential of interferometric and non-interferometric experiments in space for the investigation of the superposition principle of quantum mechanics and the quantum-to-classical transition. We delve into the possibilities offered by the state-of-the-art of nanoparticle physics projected in the space environment and discuss the numerous challenges, and the corresponding potential advancements, that the space environment presents. In doing this, we also offer an ab-initio estimate of the potential of space-based interferometry with some of the largest systems ever considered and show that there is room for tests of quantum mechanics at an unprecedented level of detail. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kaltenbaek, Rainer; Acin, Antonio; Bacsardi, Laszlo; Bianco, Paolo; Bouyer, Philippe; Diamanti, Eleni; Marquardt, Christoph; Omar, Yasser; Pruneri, Valerio; Rasel, Ernst; Sang, Bernhard; Seidel, Stephan; Ulbricht, Hendrik; Ursin, Rupert; Villoresi, Paolo; van den Bossche, Mathias; von Klitzing, Wolf; Zbinden, Hugo; Paternostro, Mauro; Bassi, Angelo
Quantum technologies in space Journal Article
In: Exp Astron, vol. 51, no. 3, pp. 1677–1694, 2021, ISSN: 1572-9508.
@article{Kaltenbaek2021,
title = {Quantum technologies in space},
author = {Rainer Kaltenbaek and Antonio Acin and Laszlo Bacsardi and Paolo Bianco and Philippe Bouyer and Eleni Diamanti and Christoph Marquardt and Yasser Omar and Valerio Pruneri and Ernst Rasel and Bernhard Sang and Stephan Seidel and Hendrik Ulbricht and Rupert Ursin and Paolo Villoresi and Mathias van den Bossche and Wolf von Klitzing and Hugo Zbinden and Mauro Paternostro and Angelo Bassi},
doi = {10.1007/s10686-021-09731-x},
issn = {1572-9508},
journal = {Exp Astron},
volume = {51},
number = {3},
pages = {1677--1694},
publisher = {Springer Science and Business Media LLC},
abstract = {Abstract Recently, the European Commission supported by many European countries has announced large investments towards the commercialization of quantum technology (QT) to address and mitigate some of the biggest challenges facing today’s digital era – e.g. secure communication and computing power. For more than two decades the QT community has been working on the development of QTs, which promise landmark breakthroughs leading to commercialization in various areas. The ambitious goals of the QT community and expectations of EU authorities cannot be met solely by individual initiatives of single countries, and therefore, require a combined European effort of large and unprecedented dimensions comparable only to the Galileo or Copernicus programs. Strong international competition calls for a coordinated European effort towards the development of QT in and for space, including research and development of technology in the areas of communication and sensing. Here, we aim at summarizing the state of the art in the development of quantum technologies which have an impact in the field of space applications. Our goal is to outline a complete framework for the design, development, implementation, and exploitation of quantum technology in space. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jones, C.; Guaita, T.; Bassi, A.
Impossibility of extending the Ghirardi-Rimini-Weber model to relativistic particles Journal Article
In: Phys. Rev. A, vol. 103, no. 4, 2021, ISSN: 2469-9934.
@article{Jones2021,
title = {Impossibility of extending the Ghirardi-Rimini-Weber model to relativistic particles},
author = {C. Jones and T. Guaita and A. Bassi},
doi = {10.1103/physreva.103.042216},
issn = {2469-9934},
journal = {Phys. Rev. A},
volume = {103},
number = {4},
publisher = {American Physical Society (APS)},
keywords = {},
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Asprea, L.; Gasbarri, G.; Bassi, A.
Gravitational decoherence: A general nonrelativistic model Journal Article
In: Phys. Rev. D, vol. 103, no. 10, 2021, ISSN: 2470-0029.
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Asprea, L.; Bassi, A.; Ulbricht, H.; Gasbarri, G.
Gravitational Decoherence and the Possibility of Its Interferometric Detection Journal Article
In: Phys. Rev. Lett., vol. 126, no. 20, 2021, ISSN: 1079-7114.
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title = {Gravitational Decoherence and the Possibility of Its Interferometric Detection},
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Asprea, L.; Bassi, A.; Ulbricht, H.; Gasbarri, G.
Gravitational Decoherence and the Possibility of Its Interferometric Detection Journal Article
In: Phys. Rev. Lett., vol. 126, no. 20, 2021, ISSN: 1079-7114.
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title = {Gravitational Decoherence and the Possibility of Its Interferometric Detection},
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Asprea, L.; Gasbarri, G.; Bassi, A.
Gravitational decoherence: A general nonrelativistic model Journal Article
In: Phys. Rev. D, vol. 103, no. 10, 2021, ISSN: 2470-0029.
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Jones, C.; Guaita, T.; Bassi, A.
Impossibility of extending the Ghirardi-Rimini-Weber model to relativistic particles Journal Article
In: Phys. Rev. A, vol. 103, no. 4, 2021, ISSN: 2469-9934.
@article{Jones2021c,
title = {Impossibility of extending the Ghirardi-Rimini-Weber model to relativistic particles},
author = {C. Jones and T. Guaita and A. Bassi},
doi = {10.1103/physreva.103.042216},
issn = {2469-9934},
journal = {Phys. Rev. A},
volume = {103},
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Gaona-Reyes, J. L.; Carlesso, Matteo; Bassi, A.
Gravitational interaction through a feedback mechanism Journal Article
In: Phys. Rev. D, vol. 103, no. 5, 2021, ISSN: 2470-0029.
@article{Gaona-Reyes2021,
title = {Gravitational interaction through a feedback mechanism},
author = {J. L. Gaona-Reyes and Matteo Carlesso and A. Bassi},
doi = {10.1103/physrevd.103.056011},
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Gundhi, A.; Gaona-Reyes, J. L.; Carlesso, Matteo; Bassi, A.
Impact of Dynamical Collapse Models on Inflationary Cosmology Journal Article
In: Phys. Rev. Lett., vol. 127, no. 9, 2021, ISSN: 1079-7114.
@article{Gundhi2021c,
title = {Impact of Dynamical Collapse Models on Inflationary Cosmology},
author = {A. Gundhi and J. L. Gaona-Reyes and Matteo Carlesso and A. Bassi},
doi = {10.1103/physrevlett.127.091302},
issn = {1079-7114},
journal = {Phys. Rev. Lett.},
volume = {127},
number = {9},
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2020
Zheng, Di; Leng, Yingchun; Kong, Xi; Li, Rui; Wang, Zizhe; Luo, Xiaohui; Zhao, Jie; Duan, Chang-Kui; Huang, Pu; Du, Jiangfeng; Carlesso, Matteo; Bassi, Angelo
Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator Journal Article
In: Phys. Rev. Research, vol. 2, no. 1, 2020, ISSN: 2643-1564.
@article{Zheng2020,
title = {Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator},
author = {Di Zheng and Yingchun Leng and Xi Kong and Rui Li and Zizhe Wang and Xiaohui Luo and Jie Zhao and Chang-Kui Duan and Pu Huang and Jiangfeng Du and Matteo Carlesso and Angelo Bassi},
doi = {10.1103/physrevresearch.2.013057},
issn = {2643-1564},
journal = {Phys. Rev. Research},
volume = {2},
number = {1},
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El-Neaj, Yousef Abou; Alpigiani, Cristiano; Amairi-Pyka, Sana; Araújo, Henrique; Balaž, Antun; Bassi, Angelo; Bathe-Peters, Lars; Battelier, Baptiste; Belić, Aleksandar; Bentine, Elliot; Bernabeu, José; Bertoldi, Andrea; Bingham, Robert; Blas, Diego; Bolpasi, Vasiliki; Bongs, Kai; Bose, Sougato; Bouyer, Philippe; Bowcock, Themis; Bowden, William; Buchmueller, Oliver; Burrage, Clare; Calmet, Xavier; Canuel, Benjamin; Caramete, Laurentiu-Ioan; Carroll, Andrew; Cella, Giancarlo; Charmandaris, Vassilis; Chattopadhyay, Swapan; Chen, Xuzong; Chiofalo, Maria Luisa; Coleman, Jonathon; Cotter, Joseph; Cui, Yanou; Derevianko, Andrei; De Roeck, Albert; Djordjevic, Goran S.; Dornan, Peter; Doser, Michael; Drougkakis, Ioannis; Dunningham, Jacob; Dutan, Ioana; Easo, Sajan; Elertas, Gedminas; Ellis, John; El Sawy, Mai; Fassi, Farida; Felea, Daniel; Feng, Chen-Hao; Flack, Robert; Foot, Chris; Fuentes, Ivette; Gaaloul, Naceur; Gauguet, Alexandre; Geiger, Remi; Gibson, Valerie; Giudice, Gian; Goldwin, Jon; Grachov, Oleg; Graham, Peter W.; Grasso, Dario; van der Grinten, Maurits; Gündogan, Mustafa; Haehnelt, Martin G.; Harte, Tiffany; Hees, Aurélien; Hobson, Richard; Hogan, Jason; Holst, Bodil; Holynski, Michael; Kasevich, Mark; Kavanagh, Bradley J.; von Klitzing, Wolf; Kovachy, Tim; Krikler, Benjamin; Krutzik, Markus; Lewicki, Marek; Lien, Yu-Hung; Liu, Miaoyuan; Luciano, Giuseppe Gaetano; Magnon, Alain; Mahmoud, Mohammed Attia; Malik, Sarah; McCabe, Christopher; Mitchell, Jeremiah; Pahl, Julia; Pal, Debapriya; Pandey, Saurabh; Papazoglou, Dimitris; Paternostro, Mauro; Penning, Bjoern; Peters, Achim; Prevedelli, Marco; Puthiya-Veettil, Vishnupriya; Quenby, John; Rasel, Ernst; Ravenhall, Sean; Ringwood, Jack; Roura, Albert; Sabulsky, Dylan; Sameed, Muhammed; Sauer, Ben; Schäffer, Stefan Alaric; Schiller, Stephan; Schkolnik, Vladimir; Schlippert, Dennis; Schubert, Christian; Sfar, Haifa Rejeb; Shayeghi, Armin; Shipsey, Ian; Signorini, Carla; Singh, Yeshpal; Soares-Santos, Marcelle; Sorrentino, Fiodor; Sumner, Timothy; Tassis, Konstantinos; Tentindo, Silvia; Tino, Guglielmo Maria; Tinsley, Jonathan N.; Unwin, James; Valenzuela, Tristan; Vasilakis, Georgios; Vaskonen, Ville; Vogt, Christian; Webber-Date, Alex; Wenzlawski, André; Windpassinger, Patrick; Woltmann, Marian; Yazgan, Efe; Zhan, Ming-Sheng; Zou, Xinhao; Zupan, Jure
AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space Journal Article
In: EPJ Quantum Technol., vol. 7, no. 1, 2020, ISSN: 2196-0763.
@article{El-Neaj2020,
title = {AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space},
author = {Yousef Abou El-Neaj and Cristiano Alpigiani and Sana Amairi-Pyka and Henrique Araújo and Antun Balaž and Angelo Bassi and Lars Bathe-Peters and Baptiste Battelier and Aleksandar Belić and Elliot Bentine and José Bernabeu and Andrea Bertoldi and Robert Bingham and Diego Blas and Vasiliki Bolpasi and Kai Bongs and Sougato Bose and Philippe Bouyer and Themis Bowcock and William Bowden and Oliver Buchmueller and Clare Burrage and Xavier Calmet and Benjamin Canuel and Laurentiu-Ioan Caramete and Andrew Carroll and Giancarlo Cella and Vassilis Charmandaris and Swapan Chattopadhyay and Xuzong Chen and Maria Luisa Chiofalo and Jonathon Coleman and Joseph Cotter and Yanou Cui and Andrei Derevianko and Albert De Roeck and Goran S. Djordjevic and Peter Dornan and Michael Doser and Ioannis Drougkakis and Jacob Dunningham and Ioana Dutan and Sajan Easo and Gedminas Elertas and John Ellis and Mai El Sawy and Farida Fassi and Daniel Felea and Chen-Hao Feng and Robert Flack and Chris Foot and Ivette Fuentes and Naceur Gaaloul and Alexandre Gauguet and Remi Geiger and Valerie Gibson and Gian Giudice and Jon Goldwin and Oleg Grachov and Peter W. Graham and Dario Grasso and Maurits van der Grinten and Mustafa Gündogan and Martin G. Haehnelt and Tiffany Harte and Aurélien Hees and Richard Hobson and Jason Hogan and Bodil Holst and Michael Holynski and Mark Kasevich and Bradley J. Kavanagh and Wolf von Klitzing and Tim Kovachy and Benjamin Krikler and Markus Krutzik and Marek Lewicki and Yu-Hung Lien and Miaoyuan Liu and Giuseppe Gaetano Luciano and Alain Magnon and Mohammed Attia Mahmoud and Sarah Malik and Christopher McCabe and Jeremiah Mitchell and Julia Pahl and Debapriya Pal and Saurabh Pandey and Dimitris Papazoglou and Mauro Paternostro and Bjoern Penning and Achim Peters and Marco Prevedelli and Vishnupriya Puthiya-Veettil and John Quenby and Ernst Rasel and Sean Ravenhall and Jack Ringwood and Albert Roura and Dylan Sabulsky and Muhammed Sameed and Ben Sauer and Stefan Alaric Schäffer and Stephan Schiller and Vladimir Schkolnik and Dennis Schlippert and Christian Schubert and Haifa Rejeb Sfar and Armin Shayeghi and Ian Shipsey and Carla Signorini and Yeshpal Singh and Marcelle Soares-Santos and Fiodor Sorrentino and Timothy Sumner and Konstantinos Tassis and Silvia Tentindo and Guglielmo Maria Tino and Jonathan N. Tinsley and James Unwin and Tristan Valenzuela and Georgios Vasilakis and Ville Vaskonen and Christian Vogt and Alex Webber-Date and André Wenzlawski and Patrick Windpassinger and Marian Woltmann and Efe Yazgan and Ming-Sheng Zhan and Xinhao Zou and Jure Zupan},
doi = {10.1140/epjqt/s40507-020-0080-0},
issn = {2196-0763},
journal = {EPJ Quantum Technol.},
volume = {7},
number = {1},
publisher = {Springer Science and Business Media LLC},
abstract = {Abstract We propose in this White Paper a concept for a space experiment using cold atoms to search for ultra-light dark matter, and to detect gravitational waves in the frequency range between the most sensitive ranges of LISA and the terrestrial LIGO/Virgo/KAGRA/INDIGO experiments. This interdisciplinary experiment, called Atomic Experiment for Dark Matter and Gravity Exploration (AEDGE), will also complement other planned searches for dark matter, and exploit synergies with other gravitational wave detectors. We give examples of the extended range of sensitivity to ultra-light dark matter offered by AEDGE, and how its gravitational-wave measurements could explore the assembly of super-massive black holes, first-order phase transitions in the early universe and cosmic strings. AEDGE will be based upon technologies now being developed for terrestrial experiments using cold atoms, and will benefit from the space experience obtained with, e.g., LISA and cold atom experiments in microgravity. KCL-PH-TH/2019-65, CERN-TH-2019-126 },
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Vinante, A.; Carlesso, Matteo; Bassi, A.; Chiasera, A.; Varas, S.; Falferi, P.; Margesin, B.; Mezzena, R.; Ulbricht, H.
Narrowing the Parameter Space of Collapse Models with Ultracold Layered Force Sensors Journal Article
In: Phys. Rev. Lett., vol. 125, no. 10, 2020, ISSN: 1079-7114.
@article{Vinante2020,
title = {Narrowing the Parameter Space of Collapse Models with Ultracold Layered Force Sensors},
author = {A. Vinante and Matteo Carlesso and A. Bassi and A. Chiasera and S. Varas and P. Falferi and B. Margesin and R. Mezzena and H. Ulbricht},
doi = {10.1103/physrevlett.125.100404},
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2019
Carlesso, Matteo; Bassi, A; Paternostro, M; Ulbricht, H
Testing the gravitational field generated by a quantum superposition Journal Article
In: New J. Phys., vol. 21, no. 9, 2019, ISSN: 1367-2630.
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title = {Testing the gravitational field generated by a quantum superposition},
author = {Matteo Carlesso and A Bassi and M Paternostro and H Ulbricht},
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date = {2019-09-01},
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abstract = {<jats:title>Abstract</jats:title>
<jats:p>What gravitational field is generated by a massive quantum system in a spatial superposition? Despite decades of intensive theoretical and experimental research, we still do not know the answer. On the experimental side, the difficulty lies in the fact that gravity is weak and requires large masses to be detectable. However, it becomes increasingly difficult to generate spatial quantum superpositions for increasingly large masses, in light of the stronger environmental effects on such systems. Clearly, a delicate balance between the need for strong gravitational effects and weak decoherence should be found. We show that such a trade off could be achieved in an optomechanics scenario that allows to witness whether the gravitational field generated by a quantum system in a spatial superposition is in a coherent superposition or not. We estimate the magnitude of the effect and show that it offers perspectives for observability.</jats:p>},
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<jats:title>Abstract</jats:title>
<jats:p>What gravitational field is generated by a massive quantum system in a spatial superposition? Despite decades of intensive theoretical and experimental research, we still do not know the answer. On the experimental side, the difficulty lies in the fact that gravity is weak and requires large masses to be detectable. However, it becomes increasingly difficult to generate spatial quantum superpositions for increasingly large masses, in light of the stronger environmental effects on such systems. Clearly, a delicate balance between the need for strong gravitational effects and weak decoherence should be found. We show that such a trade off could be achieved in an optomechanics scenario that allows to witness whether the gravitational field generated by a quantum system in a spatial superposition is in a coherent superposition or not. We estimate the magnitude of the effect and show that it offers perspectives for observability.</jats:p>
<jats:p>What gravitational field is generated by a massive quantum system in a spatial superposition? Despite decades of intensive theoretical and experimental research, we still do not know the answer. On the experimental side, the difficulty lies in the fact that gravity is weak and requires large masses to be detectable. However, it becomes increasingly difficult to generate spatial quantum superpositions for increasingly large masses, in light of the stronger environmental effects on such systems. Clearly, a delicate balance between the need for strong gravitational effects and weak decoherence should be found. We show that such a trade off could be achieved in an optomechanics scenario that allows to witness whether the gravitational field generated by a quantum system in a spatial superposition is in a coherent superposition or not. We estimate the magnitude of the effect and show that it offers perspectives for observability.</jats:p>
Proceedings
2023
Bassi, Angelo
Precision tests of models of spontaneous wave function collapse Proceedings
SPIE, 2023.
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title = {Precision tests of models of spontaneous wave function collapse},
author = {Angelo Bassi},
editor = {Selim M. Shahriar and Jacob Scheuer},
doi = {10.1117/12.2657325},
year = {2023},
date = {2023-03-09},
urldate = {2023-03-09},
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Biography
Graduated in Physics at the University of Trieste, where in 2001 he received his PhD. He worked at the ICTP in Trieste, and later in Munich, Germany. He is now full professor at the University of Trieste. His research concerns the fundamentals of quantum mechanics. He is the author of over 150 publications in international journals, invited speaker at over 70 international conferences, organizer of 30 conferences. He is PI of numerous national and international research projects. He was interviewed by New York Time Magazine with a dedicated profile (June 2020) and other national and international scientific magazines and newspapers.