Research Interests:
Quantum Foundations; Spontaneous Collapse Theories; Open Quantum Systems; Quantum Optics; Quantum Thermodynamics
Journal Articles
2025
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. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2024
Piccione, Nicolò; Bresque, Léa; Jordan, Andrew N.; Whitney, Robert S.; Auffèves, Alexia
Reservoir-Free Decoherence in Flying Qubits Journal Article
In: Phys. Rev. Lett., vol. 132, no. 22, 2024, ISSN: 1079-7114.
@article{Piccione2024,
title = {Reservoir-Free Decoherence in Flying Qubits},
author = {Nicolò Piccione and Léa Bresque and Andrew N. Jordan and Robert S. Whitney and Alexia Auffèves},
doi = {10.1103/physrevlett.132.220403},
issn = {1079-7114},
journal = {Phys. Rev. Lett.},
volume = {132},
number = {22},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Piccione, Nicolò; Maffei, Maria; Jordan, Andrew N.; Murch, Kater W.; Auffèves, Alexia
Exploring the Accuracy of Interferometric Quantum Measurements under Conservation Laws Journal Article
In: Phys. Rev. Lett., vol. 133, no. 24, 2024, ISSN: 1079-7114.
@article{Piccione2024b,
title = {Exploring the Accuracy of Interferometric Quantum Measurements under Conservation Laws},
author = {Nicolò Piccione and Maria Maffei and Andrew N. Jordan and Kater W. Murch and Alexia Auffèves},
doi = {10.1103/physrevlett.133.240202},
issn = {1079-7114},
journal = {Phys. Rev. Lett.},
volume = {133},
number = {24},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}