Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Donadi, Sandro"'
Autor:
Figurato, Laria, Dirindin, Marco, Gaona-Reyes, José Luis, Carlesso, Matteo, Bassi, Angelo, Donadi, Sandro
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 b
Externí odkaz:
http://arxiv.org/abs/2406.18494
Publikováno v:
Physical Review A 109, 062212 (2024)
The Continuous Spontaneous Localisation (CSL) model is the most studied among collapse models, which describes the breakdown of the superposition principle for macroscopic systems. Here, we derive an upper bound on the parameters of the model by appl
Externí odkaz:
http://arxiv.org/abs/2402.13057
We introduce an efficient algorithm based on the quantum noise framework for simulating open quantum systems on quantum devices. We prove that the open system dynamics can be simulated by repeatedly applying random unitary gates acting on the system
Externí odkaz:
http://arxiv.org/abs/2311.10009
Publikováno v:
New J. Phys. 26 (2024) 013001
K\'arolyh\'azy'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
Externí odkaz:
http://arxiv.org/abs/2306.10094
Autor:
Piscicchia, Kristian, Donadi, Sandro, Manti, Simone, Bassi, Angelo, Derakhshani, Maaneli, Diosi, Lajos, Curceanu, Catalina
In this work the spontaneous electromagnetic radiation from atomic systems, induced by dynamical wave-function collapse, is investigated in the X-rays domain. Strong departures are evidenced with respect to the simple cases considered until now in th
Externí odkaz:
http://arxiv.org/abs/2301.09920
Autor:
Di Bartolomeo, Giovanni, Vischi, Michele, Cesa, Francesco, Wixinger, Roman, Grossi, Michele, Donadi, Sandro, Bassi, Angelo
Publikováno v:
PhysRevResearch.5.043210 (2023)
We present a novel method for simulating the noisy behaviour of quantum computers, which allows to efficiently incorporate environmental effects in the driven evolution implementing the gates acting on the qubits. We show how to modify the noiseless
Externí odkaz:
http://arxiv.org/abs/2301.04173
Autor:
Ahlers, Holger, Badurina, Leonardo, Bassi, Angelo, Battelier, Baptiste, Beaufils, Quentin, Bongs, Kai, Bouyer, Philippe, Braxmaier, Claus, Buchmueller, Oliver, Carlesso, Matteo, Charron, Eric, Chiofalo, Maria Luisa, Corgier, Robin, Donadi, Sandro, Droz, Fabien, Ecoffet, Robert, Ellis, John, Estève, Frédéric, Gaaloul, Naceur, Gerardi, Domenico, Giese, Enno, Grosse, Jens, Hees, Aurélien, Hensel, Thomas, Herr, Waldemar, Jetzer, Philippe, Kleinsteinberg, Gina, Klempt, Carsten, Lecomte, Steve, Lopes, Louise, Loriani, Sina, Métris, Gilles, Martin, Thierry, Martín, Victor, Müller, Gabriel, Nofrarias, Miquel, Santos, Franck Pereira Dos, Rasel, Ernst M., Robert, Alain, Saks, Noah, Salter, Mike, Schlippert, Dennis, Schubert, Christian, Schuldt, Thilo, Sopuerta, Carlos F., Struckmann, Christian, Tino, Guglielmo M., Valenzuela, Tristan, von Klitzing, Wolf, Wörner, Lisa, Wolf, Peter, Yu, Nan, Zelan, Martin
An M-class mission proposal in response to the 2021 call in ESA's science programme with a broad range of objectives in fundamental physics, which include testing the Equivalence Principle and Lorentz Invariance, searching for Ultralight Dark Matter
Externí odkaz:
http://arxiv.org/abs/2211.15412
Publikováno v:
Phys. Rev. Lett. 130, 230202 (2023)
Non-interferometric experiments have been successfully employed to constrain models of spontaneous wave function collapse, which predict a violation of the quantum superposition principle for large systems. These experiments are grounded on the fact
Externí odkaz:
http://arxiv.org/abs/2209.09697
Autor:
Vowe, Sascha, Donadi, Sandro, Schkolnik, Vladimir, Peters, Achim, Leykauf, Bastian, Krutzik, Markus
Publikováno v:
Phys. Rev. A 106, 043317 (2022)
We investigate the effect of the Continuous Spontaneous Localization (CSL) model on light-pulse atom interferometry. Using a path-integral approach with an additional stochastic potential accounting for CSL, we derive an exponential loss of the contr
Externí odkaz:
http://arxiv.org/abs/2209.08818
Autor:
Carlesso, Matteo, Donadi, Sandro, Ferialdi, Luca, Paternostro, Mauro, Ulbricht, Hendrik, Bassi, Angelo
Publikováno v:
Nature Physics 18, 243-250 (2022)
The superposition principle is the cornerstone of quantum mechanics, leading to a variety of genuinely quantum effects. Whether the principle applies also to macroscopic systems or, instead, there is a progressive breakdown when moving to larger scal
Externí odkaz:
http://arxiv.org/abs/2203.04231