Publications

@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}

}

@article{Donadi2022d,

title = {A path integral over Hilbert space for quantum mechanics},

author = {S. Donadi and S. Hossenfelder},

doi = {10.1016/j.aop.2022.168827},

issn = {0003-4916},

year  = {2022},

date = {2022-05-27},

journal = {Annals of Physics},

volume = {440},

publisher = {Elsevier BV},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Donadi2022b,

title = {Toy model for local and deterministic wave-function collapse},

author = {Sandro Donadi and Sabine Hossenfelder},

doi = {10.1103/physreva.106.022212},

issn = {2469-9934},

year  = {2022},

date = {2022-05-25},

journal = {Phys. Rev. A},

volume = {106},

number = {2},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Vowe2022,

title = {Light-pulse atom interferometric test of continuous spontaneous localization},

author = {Sascha Vowe and Sandro Donadi and Vladimir Schkolnik and Achim Peters and Bastian Leykauf and Markus Krutzik},

doi = {10.1103/physreva.106.043317},

issn = {2469-9934},

year  = {2022},

date = {2022-05-12},

journal = {Phys. Rev. A},

volume = {106},

number = {4},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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}

}

@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},

year  = {2022},

date = {2022-03-00},

journal = {Nat. Phys.},

volume = {18},

number = {3},

pages = {243--250},

publisher = {Springer Science and Business Media LLC},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2022},

date = {2022-03-00},

journal = {Physics Reports},

volume = {951},

pages = {1--70},

publisher = {Elsevier BV},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Wu2022,

title = {Nonequilibrium Quantum Thermodynamics of a Particle Trapped in a Controllable Time-Varying Potential},

author = {Qiongyuan Wu and Luca Mancino and Matteo Carlesso and Mario A. Ciampini and Lorenzo Magrini and Nikolai Kiesel and Mauro Paternostro},

doi = {10.1103/prxquantum.3.010322},

issn = {2691-3399},

year  = {2022},

date = {2022-02-00},

journal = {PRX Quantum},

volume = {3},

number = {1},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2021},

date = {2021-12-00},

journal = {Commun Phys},

volume = {4},

number = {1},

publisher = {Springer Science and Business Media LLC},

abstract = {AbstractQuantum 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}

}

@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},

year  = {2021},

date = {2021-11-00},

journal = {Phys. Rev. D},

volume = {104},

number = {10},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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}

}

@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},

year  = {2021},

date = {2021-08-00},

urldate = {2021-08-00},

journal = {Phys. Rev. Lett.},

volume = {127},

number = {9},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2021},

date = {2021-08-00},

journal = {Eur. Phys. J. C},

volume = {81},

number = {8},

publisher = {Springer Science and Business Media LLC},

abstract = {AbstractWe 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

                    

                  

                 keV the contribution to the radiation emission from the atomic nuclei grows quadratically with the atomic number of the atom, overtaking the contribution from the electrons, which grows only linearly. This theoretical prediction is then compared with the data from a dedicated experiment performed at the extremely low background environment of the Gran Sasso underground National Laboratory, where the radiation emitted form a sample of Germanium was measured.As a result, we obtain the strongest bounds on the CSL parameters for $$r_Cle 10^{-6}$$

                  

                    

                      r

                      C

                    

                    ≤

                    

                      10

                      

                        -

                        6

                      

                    

                  

                 m, improving the previous ones by more than an order of magnitude.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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}

}

@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},

year  = {2021},

date = {2021-06-00},

journal = {Exp Astron},

volume = {51},

number = {3},

pages = {1677--1694},

publisher = {Springer Science and Business Media LLC},

abstract = {AbstractRecently, 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}

}

@article{Gundhi2021,

title = {Scalaron–Higgs inflation reloaded: Higgs-dependent scalaron mass and primordial black hole dark matter},

author = {Anirudh Gundhi and Christian F. Steinwachs},

doi = {10.1140/epjc/s10052-021-09225-2},

issn = {1434-6052},

year  = {2021},

date = {2021-05-00},

urldate = {2021-05-00},

journal = {Eur. Phys. J. C},

volume = {81},

number = {5},

publisher = {Springer Science and Business Media LLC},

abstract = {We propose an extension of the scalaron-Higgs model by a non-minimal coupling of the Standard Model Higgs boson to the quadratic Ricci scalar resulting in a Higgs-dependent scalaron mass. The model predicts a successful stage of effective single-field Starobinsky inflation. It features a multi-field amplification mechanism leading to a peak in the inflationary power spectrum at small wavelengths which enhances the production of primordial black holes. The extended scalaron-Higgs model unifies inflationary cosmology with elementary particle physics and explains the origin of cold dark matter in terms of primordial black holes without assuming any new particles.</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Asprea2021,

title = {Gravitational decoherence: A general nonrelativistic model},

author = {L. Asprea and G. Gasbarri and A. Bassi},

doi = {10.1103/physrevd.103.104041},

issn = {2470-0029},

year  = {2021},

date = {2021-05-00},

journal = {Phys. Rev. D},

volume = {103},

number = {10},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Asprea2021b,

title = {Gravitational Decoherence and the Possibility of Its Interferometric Detection},

author = {L. Asprea and A. Bassi and H. Ulbricht and G. Gasbarri},

doi = {10.1103/physrevlett.126.200403},

issn = {1079-7114},

year  = {2021},

date = {2021-05-00},

journal = {Phys. Rev. Lett.},

volume = {126},

number = {20},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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}

}

@article{Gundhi2021b,

title = {Primordial black hole dark matter in dilaton-extended two-field Starobinsky inflation},

author = {Anirudh Gundhi and Sergei V. Ketov and Christian F. Steinwachs},

doi = {10.1103/physrevd.103.083518},

issn = {2470-0029},

year  = {2021},

date = {2021-04-00},

journal = {Phys. Rev. D},

volume = {103},

number = {8},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2021},

date = {2021-04-00},

journal = {Phys. Rev. A},

volume = {103},

number = {4},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2021},

date = {2021-03-00},

journal = {Phys. Rev. A},

volume = {103},

number = {3},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

issn = {2470-0029},

year  = {2021},

date = {2021-03-00},

urldate = {2021-03-00},

journal = {Phys. Rev. D},

volume = {103},

number = {5},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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}

}

@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},

year  = {2021},

date = {2021-01-00},

journal = {Nat. Phys.},

volume = {17},

number = {1},

pages = {74--78},

publisher = {Springer Science and Business Media LLC},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2020},

date = {2020-12-00},

journal = {EPJ Quantum Technol.},

volume = {7},

number = {1},

publisher = {Springer Science and Business Media LLC},

abstract = {AbstractWe 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},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

issn = {1079-7114},

year  = {2020},

date = {2020-09-00},

urldate = {2020-09-00},

journal = {Phys. Rev. Lett.},

volume = {125},

number = {10},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Mascherpa2020,

title = {Optimized auxiliary oscillators for the simulation of general open quantum systems},

author = {F. Mascherpa and A. Smirne and A. D. Somoza and P. Fernández-Acebal and S. Donadi and D. Tamascelli and S. F. Huelga and M. B. Plenio},

doi = {10.1103/physreva.101.052108},

issn = {2469-9934},

year  = {2020},

date = {2020-05-06},

journal = {Phys. Rev. A},

volume = {101},

number = {5},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@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},

year  = {2020},

date = {2020-01-00},

journal = {Phys. Rev. Research},

volume = {2},

number = {1},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Carlesso2019b,

title = {Testing the gravitational field generated by a quantum superposition},

author = {Matteo Carlesso and A Bassi and M Paternostro and H Ulbricht},

doi = {10.1088/1367-2630/ab41c1},

issn = {1367-2630},

year  = {2019},

date = {2019-09-01},

urldate = {2019-09-01},

journal = {New J. Phys.},

volume = {21},

number = {9},

publisher = {IOP Publishing},

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>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Goldwater2019,

title = {Quantum Spectrometry for Arbitrary Noise},

author = {Daniel Goldwater and P. F. Barker and Angelo Bassi and Sandro Donadi},

doi = {10.1103/physrevlett.123.230801},

issn = {1079-7114},

year  = {2019},

date = {2019-05-09},

journal = {Phys. Rev. Lett.},

volume = {123},

number = {23},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Adler2019,

title = {Testing continuous spontaneous localization with Fermi liquids},

author = {S L Adler and A Bassi and Matteo Carlesso and A Vinante},

doi = {10.1103/physrevd.99.103001},

issn = {2470-0029},

year  = {2019},

date = {2019-05-00},

urldate = {2019-05-00},

journal = {Phys. Rev. D},

volume = {99},

number = {10},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Nobakht2018,

title = {Unitary unraveling for the dissipative continuous spontaneous localization model: Application to optomechanical experiments},

author = {J. Nobakht and Matteo Carlesso and S. Donadi and M. Paternostro and A. Bassi},

doi = {10.1103/physreva.98.042109},

issn = {2469-9934},

year  = {2018},

date = {2018-10-00},

urldate = {2018-10-00},

journal = {Phys. Rev. A},

volume = {98},

number = {4},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Carlesso2018,

title = {Colored collapse models from the non-interferometric perspective},

author = {Matteo Carlesso and Luca Ferialdi and Angelo Bassi},

doi = {10.1140/epjd/e2018-90248-x},

issn = {1434-6079},

year  = {2018},

date = {2018-09-00},

journal = {Eur. Phys. J. D},

volume = {72},

number = {9},

publisher = {Springer Science and Business Media LLC},

abstract = {

                Abstract

                

Models of spontaneous wave function collapse describe the quantum-to-classical transition by assuming a progressive breakdown of the superposition principle when the mass of the system increases, providing a well-defined phenomenology in terms of a non-linearly and stochastically modified Schrödinger equation, which can be tested experimentally. The most popular of such models is the continuous spontaneous localization (CSL) model: in its original version, the collapse is driven by a white noise, and more recently, generalizations in terms of colored noises, which are more realistic, have been formulated. We will analyze how current non-interferometric tests bound the model, depending on the spectrum of the noise. We will find that low frequency purely mechanical experiments provide the most stable and strongest bounds.



              

                Graphical abstract

                

              },

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Carlesso2018b,

title = {Non-interferometric test of the continuous spontaneous localization model based on rotational optomechanics},

author = {Matteo Carlesso and Mauro Paternostro and Hendrik Ulbricht and Andrea Vinante and Angelo Bassi},

doi = {10.1088/1367-2630/aad863},

issn = {1367-2630},

year  = {2018},

date = {2018-08-01},

journal = {New J. Phys.},

volume = {20},

number = {8},

publisher = {IOP Publishing},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Carlesso2018c,

title = {Multilayer test masses to enhance the collapse noise},

author = {Matteo Carlesso and Andrea Vinante and Angelo Bassi},

doi = {10.1103/physreva.98.022122},

issn = {2469-9934},

year  = {2018},

date = {2018-08-00},

journal = {Phys. Rev. A},

volume = {98},

number = {2},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Toroš2017,

title = {Colored and dissipative continuous spontaneous localization model and bounds from matter-wave interferometry},

author = {Marko Toroš and Giulio Gasbarri and Angelo Bassi},

doi = {10.1016/j.physleta.2017.10.002},

issn = {0375-9601},

year  = {2017},

date = {2017-12-00},

journal = {Physics Letters A},

volume = {381},

number = {47},

pages = {3921--3927},

publisher = {Elsevier BV},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gasbarri2017,

title = {Gravity induced wave function collapse},

author = {G. Gasbarri and M. Toroš and S. Donadi and A. Bassi},

doi = {10.1103/physrevd.96.104013},

issn = {2470-0029},

year  = {2017},

date = {2017-11-00},

journal = {Phys. Rev. D},

volume = {96},

number = {10},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Bassi2017,

title = {Gravitational decoherence},

author = {Angelo Bassi and André Großardt and Hendrik Ulbricht},

doi = {10.1088/1361-6382/aa864f},

issn = {1361-6382},

year  = {2017},

date = {2017-10-05},

journal = {Class. Quantum Grav.},

volume = {34},

number = {19},

publisher = {IOP Publishing},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Vinante2017,

title = {Improved Noninterferometric Test of Collapse Models Using Ultracold Cantilevers},

author = {A. Vinante and R. Mezzena and P. Falferi and Matteo Carlesso and A. Bassi},

doi = {10.1103/physrevlett.119.110401},

issn = {1079-7114},

year  = {2017},

date = {2017-09-00},

urldate = {2017-09-00},

journal = {Phys. Rev. Lett.},

volume = {119},

number = {11},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gasbarri2017b,

title = {General Galilei Covariant Gaussian Maps},

author = {Giulio Gasbarri and Marko Toroš and Angelo Bassi},

doi = {10.1103/physrevlett.119.100403},

issn = {1079-7114},

year  = {2017},

date = {2017-09-00},

journal = {Phys. Rev. Lett.},

volume = {119},

number = {10},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Piscicchia2017,

title = {CSL Collapse Model Mapped with the Spontaneous Radiation},

author = {Kristian Piscicchia and Angelo Bassi and Catalina Curceanu and Raffaele Grande and Sandro Donadi and Beatrix Hiesmayr and Andreas Pichler},

doi = {10.3390/e19070319},

issn = {1099-4300},

year  = {2017},

date = {2017-07-00},

journal = {Entropy},

volume = {19},

number = {7},

publisher = {MDPI AG},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Caiaffa2017,

title = {Stochastic unraveling of positive quantum dynamics},

author = {Matteo Caiaffa and Andrea Smirne and Angelo Bassi},

doi = {10.1103/physreva.95.062101},

issn = {2469-9934},

year  = {2017},

date = {2017-06-00},

journal = {Phys. Rev. A},

volume = {95},

number = {6},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Carlesso2017,

title = {Adjoint master equation for quantum Brownian motion},

author = {Matteo Carlesso and Angelo Bassi},

doi = {10.1103/physreva.95.052119},

issn = {2469-9934},

year  = {2017},

date = {2017-05-00},

journal = {Phys. Rev. A},

volume = {95},

number = {5},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Bilardello2017,

title = {Collapse in ultracold Bose Josephson junctions},

author = {M. Bilardello and A. Trombettoni and A. Bassi},

doi = {10.1103/physreva.95.032134},

issn = {2469-9934},

year  = {2017},

date = {2017-03-00},

journal = {Phys. Rev. A},

volume = {95},

number = {3},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{McMillen2017,

title = {Quantum-limited estimation of continuous spontaneous localization},

author = {S. McMillen and M. Brunelli and Matteo Carlesso and A. Bassi and H. Ulbricht and M. G. A. Paris and M. Paternostro},

doi = {10.1103/physreva.95.012132},

issn = {2469-9934},

year  = {2017},

date = {2017-01-00},

urldate = {2017-01-00},

journal = {Phys. Rev. A},

volume = {95},

number = {1},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Carlesso2016,

title = {Experimental bounds on collapse models from gravitational wave detectors},

author = {Matteo Carlesso and Angelo Bassi and Paolo Falferi and Andrea Vinante},

doi = {10.1103/physrevd.94.124036},

issn = {2470-0029},

year  = {2016},

date = {2016-12-00},

journal = {Phys. Rev. D},

volume = {94},

number = {12},

publisher = {American Physical Society (APS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Kaltenbaek2016,

title = {Macroscopic Quantum Resonators (MAQRO): 2015 update},

author = {R Kaltenbaek and M Aspelmeyer and P F Barker and A Bassi and J Bateman and K Bongs and S Bose and C Braxmaier and Č Brukner and B Christophe and M Chwalla and P F Cohadon and A M Cruise and C Curceanu and K Dholakia and L Diósi and K Döringshoff and W Ertmer and J Gieseler and N Gürlebeck and G Hechenblaikner and A Heidmann and S Herrmann and S Hossenfelder and U Johann and N Kiesel and M Kim and C Lämmerzahl and A Lambrecht and M Mazilu and G J Milburn and H Müller and L Novotny and M Paternostro and A Peters and I Pikovski and A P Zanoni and E M Rasel and S Reynaud and C J Riedel and M Rodrigues and L Rondin and A Roura and W P Schleich and J Schmiedmayer and T Schuldt and K C Schwab and M Tajmar and G M Tino and H Ulbricht and R Ursin and V Vedral},

doi = {10.1140/epjqt/s40507-016-0043-7},

issn = {2196-0763},

year  = {2016},

date = {2016-12-00},

urldate = {2016-12-00},

journal = {EPJ Quantum Technol.},

volume = {3},

number = {1},

publisher = {Springer Science and Business Media LLC},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Großardt2016c,

title = {Effects of Newtonian gravitational self-interaction in harmonically trapped quantum systems},

author = {André Großardt and James Bateman and Hendrik Ulbricht and Angelo Bassi},

doi = {10.1038/srep30840},

issn = {2045-2322},

year  = {2016},

date = {2016-11-14},

journal = {Sci Rep},

volume = {6},

number = {1},

publisher = {Springer Science and Business Media LLC},

abstract = {AbstractThe Schrödinger–Newton equation has gained attention in the recent past as a nonlinear modification of the Schrödinger equation due to a gravitational self-interaction. Such a modification is expected from a fundamentally semi-classical theory of gravity and can, therefore, be considered a test case for the necessity of the quantisation of the gravitational field. Here we provide a thorough study of the effects of the Schrödinger–Newton equation for a micron-sized sphere trapped in a harmonic oscillator potential. We discuss both the effect on the energy eigenstates and the dynamical behaviour of squeezed states, covering the experimentally relevant parameter regimes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}