Results 31 to 40 of about 16,256 (248)
Thermodynamics of Quantum Feedback Cooling [PDF]
Entropy, 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
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Thermodynamics of precision in quantum nanomachines [PDF]
Physical Review E, 2021 Fluctuations strongly affect the dynamics and functionality of nanoscale thermal machines. Recent developments in stochastic thermodynamics have shown that fluctuations in many far-from-equilibrium systems are constrained by the rate of entropy production via so-called thermodynamic uncertainty relations.
Antoine Rignon-Bret +3 more
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Nonequilibrium thermodynamics in cavity optomechanics
Fundamental Research, 2023 Classical thermodynamics has been a great achievement in dealing with systems that are in equilibrium or near equilibrium. As an emerging field, nonequilibrium thermodynamics provides a general framework for understanding the nonequilibrium processes ...
Jiteng Sheng, Cheng Yang, Haibin Wu
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Quantum Thermodynamics: An Introduction to the Thermodynamics of Quantum Computers [PDF]
Proceedings of 5th International Electronic Conference on Entropy and Its Applications, 2019 We are the verge of a technological revolution. Over the last couple of years the first computational devices have become commercially available that promise to exploit so-called quantum supremacy. Even though the thermodynamic cost for processing classical information has been known since the 1960s, the thermodynamic description of quantum computers ...
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Quantum Thermodynamics with Degenerate Eigenstate Coherences
Entropy, 2016 We establish quantum thermodynamics for open quantum systems weakly coupled to their reservoirs when the system exhibits degeneracies. The first and second law of thermodynamics are derived, as well as a finite-time fluctuation theorem for mechanical ...
Gregory Bulnes Cuetara +2 more
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Quantum thermodynamically consistent local master equations
Physical Review Research, 2021 Local master equations are a widespread tool to model open quantum systems, especially in the context of many-body systems. These equations, however, are believed to lead to thermodynamic anomalies and violation of the laws of thermodynamics. In contrast,
Adam Hewgill +2 more
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Entropy Exchange and Thermodynamic Properties of the Single Ion Cooling Process
Entropy, 2019 A complete quantum cooling cycle may be a useful platform for studying quantum thermodynamics just as the quantum heat engine does. Entropy change is an important feature which can help us to investigate the thermodynamic properties of the single ion ...
Jian-Guo Miao +3 more
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Quantum corrections for thermodynamics [PDF]
Il Nuovo Cimento B, 1978 We generalize an expression for the trace of an operator due to Nishijima and derive, without the use of tedious mathematics, the Kirkwood expansion for the quantum-mechanical partition function. This expansion is applied to three simple systems and its use for more complex systems is thereby made clear.
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Daemonic ergotropy: enhanced work extraction from quantum correlations
npj Quantum Information, 2017 Quantum thermodynamics: Quantum correlations are key for work extraction! A strong connection exists between the ability of a quantum system to perform thermodynamic work and the amount of quantum correlations that are set in its physical configuration ...
Gianluca Francica +3 more
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Entropy production along nonequilibrium quantum jump trajectories
New Journal of Physics, 2013 For classical nonequilibrium systems, the separation of the total entropy production into the adiabatic and nonadiabatic contributions is useful for understanding irreversibility in nonequilibrium thermodynamics.
Jordan M Horowitz, Juan M R Parrondo
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