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of 73
pro vyhledávání: '"Serra, Roberto M."'
The development of techniques that reduce experimental complexity and minimize errors is an utmost importance for modeling quantum channels. In general, quantum simulators are focused on universal algorithms, whose practical implementation requires e
Externí odkaz:
http://arxiv.org/abs/2402.15401
Autor:
Vieira, Carlos H. S., de Oliveira, Jefferson L. D., Santos, Jonas F. G., Dieguez, Pedro R., Serra, Roberto M.
Publikováno v:
J. Magn. Reson. Open 16-17, 100105 (2023)
Quantum thermodynamics seeks to extend non-equilibrium stochastic thermodynamics to small quantum systems where non-classical features are essential to its description. Such a research area has recently provided meaningful theoretical and experimenta
Externí odkaz:
http://arxiv.org/abs/2303.08917
Publikováno v:
Phys. Rev. Research 5, 043104 (2023)
Employing currently available quantum technology, we design and implement a non-classically correlated SWAP heat engine that allows to achieve an efficiency above the standard Carnot limit. Such an engine also boosts the amount of extractable work, i
Externí odkaz:
http://arxiv.org/abs/2211.11449
Publikováno v:
Phys. Rev. A 107, 012423 (2023)
A quantum-controlled device may produce a scenario in which two general quantum operations can be performed in such a way that it is not possible to associate a definite order for the operations application. Such an indefinite causal order can be exp
Externí odkaz:
http://arxiv.org/abs/2205.14406
Autor:
Dieguez, Pedro R., Guimarães, Jéferson R., Peterson, John P. S., Angelo, Renato M., Serra, Roberto M.
Publikováno v:
Commun. Phys. 5, 82 (2022)
Bohr's complementarity principle has been challenged by quantum delayed-choice experiments wherein quantum systems are claimed to behave neither as wave nor as a particle, but in an intermediary way. However, this conclusion has been supported by ret
Externí odkaz:
http://arxiv.org/abs/2104.08152
Autor:
Micadei, Kaonan, Peterson, John P. S., Souza, Alexandre M., Sarthour, Roberto S., Oliveira, Ivan S., Landi, Gabriel T., Serra, Roberto M., Lutz, Eric
Publikováno v:
Phys. Rev. Lett. 127, 180603 (2021)
Fluctuation theorems are fundamental extensions of the second law of thermodynamics for small systems. Their general validity arbitrarily far from equilibrium makes them invaluable in nonequilibrium physics. So far, experimental studies of quantum fl
Externí odkaz:
http://arxiv.org/abs/2012.06294
Publikováno v:
Phys. Rev. Lett. 127, 030602 (2021)
We combine theoretical and experimental efforts to propose a method for studying energy fluctuations, in particular, to obtain the related bi-stochastic matrix of transition probabilities by means of simple measurements at the end of a protocol that
Externí odkaz:
http://arxiv.org/abs/2010.03752
Publikováno v:
Phys. Rev. A 102, 012217 (2020)
The extension of quantum thermodynamics to situations that go beyond standard thermodynamic settings comprises an important and interesting aspect of its development. One such situation is the analysis of the thermodynamic consequences of structured
Externí odkaz:
http://arxiv.org/abs/2002.02039
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Publikováno v:
Phys. Rev. Research 2, 033167 (2020)
The thermodynamic behavior of out-of-equilibrium quantum systems in finite-time dynamics encompasses the description of energy fluctuations, which dictates a series of system's physical properties. In addition, strong interactions in many-body system
Externí odkaz:
http://arxiv.org/abs/1908.06488