Quantifying athermality and quantum induced deviations from classical fluctuation relations
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Author(s)
Holmes, Zoe
Mingo, Erick Hinds
Chen, Calvin YR
Mintert, Florian
Type
Journal Article
Abstract
In recent years a quantum information theoretic framework has emerged for
incorporating non-classical phenomena into fluctuation relations. Here we
elucidate this framework by exploring deviations from classical fluctuation
relations resulting from the athermality of the initial thermal system and
quantum coherence of the system's energy supply. In particular we develop
Crooks-like equalities for an oscillator system which is prepared either in
photon added or photon subtracted thermal states and derive a Jarzynski-like
equality for average work extraction. We use these equalities to discuss the
extent to which adding or subtracting a photon increases the informational
content of a state thereby amplifying the suppression of free energy increasing
process. We go on to derive a Crooks-like equality for an energy supply that is
prepared in a pure binomial state, leading to a non-trivial contribution from
energy and coherence on the resultant irreversibility. We show how the binomial
state equality fits in relation to a previously derived coherent state equality
and offers a richer feature-set.
incorporating non-classical phenomena into fluctuation relations. Here we
elucidate this framework by exploring deviations from classical fluctuation
relations resulting from the athermality of the initial thermal system and
quantum coherence of the system's energy supply. In particular we develop
Crooks-like equalities for an oscillator system which is prepared either in
photon added or photon subtracted thermal states and derive a Jarzynski-like
equality for average work extraction. We use these equalities to discuss the
extent to which adding or subtracting a photon increases the informational
content of a state thereby amplifying the suppression of free energy increasing
process. We go on to derive a Crooks-like equality for an energy supply that is
prepared in a pure binomial state, leading to a non-trivial contribution from
energy and coherence on the resultant irreversibility. We show how the binomial
state equality fits in relation to a previously derived coherent state equality
and offers a richer feature-set.
Date Issued
2020-01-16
Date Acceptance
2020-01-14
Citation
Entropy: international and interdisciplinary journal of entropy and information studies, 2020, 22 (1), pp.1-29
ISSN
1099-4300
Publisher
MDPI AG
Start Page
1
End Page
29
Journal / Book Title
Entropy: international and interdisciplinary journal of entropy and information studies
Volume
22
Issue
1
Copyright Statement
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Identifier
http://arxiv.org/abs/2001.04926v1
Subjects
quant-ph
quant-ph
cond-mat.stat-mech
Notes
22 pages, 5 figures, accepted by Entropy
Date Publish Online
2020-01-16