@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},

year  = {2023},

date = {2023-02-00},

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}

}

@article{Zicari2023,

title = {On the role of initial coherence in the spin phase-space entropy production rate},

author = {Giorgio Zicari and Barış Çakmak and Özgür E Müstecaplıoğlu and Mauro Paternostro},

doi = {10.1088/1367-2630/acb45b},

issn = {1367-2630},

year  = {2023},

date = {2023-01-01},

journal = {New J. Phys.},

volume = {25},

number = {1},

publisher = {IOP Publishing},

abstract = {Abstract

               Recent studies have pointed out the intrinsic dependence of figures of merit of thermodynamic relevance—such as work, heat and entropy production—on the amount of quantum coherences that is made available to a system. However, whether coherences hinder or enhance the value taken by such quantifiers of thermodynamic performance is yet to be ascertained. We show that, when considering entropy production generated in a process taking a finite-size bipartite quantum system out of equilibrium through local non-unitary channels, no general monotonicity relationship exists between the entropy production and degree of quantum coherence in the state of the system. A direct correspondence between such quantities can be retrieved when considering specific forms of open-system dynamics applied to suitably chosen initial states. Our results call for a systematic study of the role of genuine quantum features in the non-equilibrium thermodynamics of quantum processes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}