Special Issue "Non-equilibrium Thermodynamics in the Quantum Regime"

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Non-equilibrium Phenomena".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 1516

Special Issue Editors

Prof. Michele Campisi
E-Mail Website
Guest Editor
1. NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, 56127 Pisa, Italy
2. Physics and Astronomy Department, University of Florence, 1 50019 Sesto Fiorentino (FI), Italy
Interests: quantum thermodynamics; non-equilibrium thermodynamics of small systems and devices; statistical physics
Prof. Dr. Francesco Plastina
E-Mail Website
Guest Editor
Dipartimento di Fisica, Università della Calabria, Via P.Bucci, Cubo 31 C, 87036 Arcavacata di Rende, Cosenza, Italy
Interests: quantum correlations; open systems; quantum thermodynamics

Special Issue Information

Dear Colleagues,

Despite the many new developments of the last 20 years, many fundamental problems of out-of-equilibrium thermodynamics still wait for a solution in the quantum regime. Heat, work, and entropy production in driven small quantum systems have been investigated both theoretically and experimentally, but a full understanding of the role of quantum effects is still elusive. The issue is even more complicated when considering quantum many-body systems, where quantum and classical correlations and coherences interlace with one another. Yet, it is not clear how to disentangle them in general, and when that has been achieved in specific cases, quantum coherence and correlations have been observed to be accompanied either by an improvement or by a worsening of the performances of quantum devices with respect to their corresponding classical counterparts. Can we understand these behaviors in general terms and trace them back to their fundamental explanations?

Furthermore, the invasiveness of quantum measurements is a genuinely quantum effect: its potential as a fuel for quantum thermal machines has been demonstrated theoretically, but experiments have yet to confirm the theory.

Under what circumstances are quantum effects relevant for heat and work manipulation at the quantum level? How do they enter the functioning of heat engines? To what extent can they be exploited in order to obtain advantages in specific figures of merit, and in which operating regimes is this possible at all?

From a more fundamental point of view, a unified description of all the sources of irreversibility in the quantum regime needs to be further developed, both through theory and experiments.

Prof. Michele Campisi
Prof. Francesco Plastina
Guest Editors

Manuscript Submission Information

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  • quantum thermodynamics
  • quantum heat engines
  • non-equilibrium processes
  • fluctuation relations
  • entropy production
  • energy storage and extraction
  • ergotropy

Published Papers (1 paper)

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Characterization of a Two-Photon Quantum Battery: Initial Conditions, Stability and Work Extraction
Entropy 2021, 23(5), 612; https://doi.org/10.3390/e23050612 - 14 May 2021
Cited by 4 | Viewed by 1009
We consider a quantum battery that is based on a two-level system coupled with a cavity radiation by means of a two-photon interaction. Various figures of merit, such as stored energy, average charging power, energy fluctuations, and extractable work are investigated, considering, as [...] Read more.
We consider a quantum battery that is based on a two-level system coupled with a cavity radiation by means of a two-photon interaction. Various figures of merit, such as stored energy, average charging power, energy fluctuations, and extractable work are investigated, considering, as possible initial conditions for the cavity, a Fock state, a coherent state, and a squeezed state. We show that the first state leads to better performances for the battery. However, a coherent state with the same average number of photons, even if it is affected by stronger fluctuations in the stored energy, results in quite interesting performance, in particular since it allows for almost completely extracting the stored energy as usable work at short enough times. Full article
(This article belongs to the Special Issue Non-equilibrium Thermodynamics in the Quantum Regime)
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