Results 41 to 50 of about 1,570,895 (361)

Open-system approach to nonequilibrium quantum thermodynamics at arbitrary coupling [PDF]

open access: yesPhysical Review A, 2021
We develop a general theory describing the thermodynamical behavior of open quantum systems coupled to thermal baths beyond perturbation theory. Our approach is based on the exact time-local quantum master equation for the reduced open system states, and
A. Colla, H. Breuer
semanticscholar   +1 more source

Can Quantum Correlations Lead to Violation of the Second Law of Thermodynamics?

open access: yesEntropy, 2021
Quantum entanglement can cause the efficiency of a heat engine to be greater than the efficiency of the Carnot cycle. However, this does not mean a violation of the second law of thermodynamics, since there is no local equilibrium for pure quantum states,
Alexey V. Melkikh
doaj   +1 more source

Quantum thermodynamics

open access: yesAVS Quantum Science, 2023
Are concepts of heat and efficiency applicable to atom-size machines or to nanoelectronics components? Can we rebuild thermodynamics from laws of quantum mechanics?
H. Rubinsztein-Dunlop
semanticscholar   +1 more source

Thermodynamics of Quantum Trajectories on a Quantum Computer

open access: yesPhysical Review Letters, 2023
Quantum computers have recently become available as noisy intermediate-scale quantum devices. Already these machines yield a useful environment for research on quantum systems and dynamics. Building on this opportunity, we investigate open-system dynamics that are simulated on a quantum computer by coupling a system of interest to an ancilla.
Marcel Cech   +2 more
openaire   +3 more sources

Quantum thermodynamics of a quantum sized AdS black hole

open access: yesNuclear Physics B, 2022
In this paper, we investigate the effects of non-perturbative quantum gravitational corrections on a quantum sized AdS black hole. It will be observed that these non-perturbative quantum gravitational corrections modify the stability of this black hole ...
Behnam Pourhassan   +5 more
doaj   +1 more source

First and Second Law of Quantum Thermodynamics: A Consistent Derivation Based on a Microscopic Definition of Entropy [PDF]

open access: yesPRX Quantum, 2020
Deriving the laws of thermodynamics from a microscopic picture is a central quest of statistical mechanics. This tutorial focuses on the derivation of the first and second law for isolated and open quantum systems far from equilibrium, where such ...
P. Strasberg, A. Winter
semanticscholar   +1 more source

Thermodynamics at microscales: 3D→2D, 1D and 0D

open access: yesGreen Energy & Environment, 2020
Today, the laws of traditional thermodynamics are facing challenges when science is growing rapidly toward the microscale-world, even quantum hypothesis.
Kun Dong, Feng Huo, Suojiang Zhang
doaj   +1 more source

Verification of Information Thermodynamics in a Trapped Ion System

open access: yesEntropy, 2022
Information thermodynamics has developed rapidly over past years, and the trapped ions, as a controllable quantum system, have demonstrated feasibility to experimentally verify the theoretical predictions in the information thermodynamics.
Lei-Lei Yan   +4 more
doaj   +1 more source

Thermodynamics of Quantum Feedback Cooling [PDF]

open access: yesEntropy, 2016
The ability to initialize quantum registers in pure states lies at the core of many applications of quantum technologies, from sensing to quantum information processing and computation. In this paper, we tackle the problem of increasing the polarization bias of an ensemble of two-level register spins by means of joint coherent manipulations, involving ...
Liuzzo-Scorpo, Pietro   +4 more
openaire   +10 more sources

Quantum Thermodynamics of Correlated-Catalytic State Conversion at Small Scale. [PDF]

open access: yesPhysical Review Letters, 2020
The class of possible thermodynamic conversions can be extended by introducing an auxiliary system called catalyst, which assists in state conversion while its own state remains unchanged.
Naoto Shiraishi, T. Sagawa
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy