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dc.contributor.author
Åberg, Johan
dc.date.accessioned
2020-09-25T17:51:06Z
dc.date.available
2017-06-09T17:46:38Z
dc.date.available
2020-09-25T17:51:06Z
dc.date.issued
2011-10-27
dc.identifier.uri
http://hdl.handle.net/20.500.11850/42428
dc.description.abstract
The work content of non-equilibrium systems in relation to a heat bath is often analyzed in terms of expectation values of an underlying random work variable. However, we show that when optimizing the expectation value of the extracted work, the resulting extraction process is subject to intrinsic fluctuations. These fluctuations can be of the same order as the expected work content per se, in which case the extracted energy is unpredictable, thus intuitively more heat-like than work-like. This raises the question of the `truly' work-like energy that can extracted. Here we consider an alternative that corresponds to an essentially fluctuation-free extraction. We show that this quantity can be expressed in terms of a non-equilibrium generalization of the free energy, or equivalently in terms of a one-shot relative entropy measure introduced in information theory.
en_US
dc.language.iso
en
en_US
dc.publisher
Cornell University
en_US
dc.title
Truly work-like work extraction
en_US
dc.type
Working Paper
ethz.journal.title
arXiv
ethz.pages.start
1110.6121
en_US
ethz.size
29 p.
en_US
ethz.identifier.arxiv
1110.6121
ethz.publication.place
Ithaca, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02511 - Institut für Theoretische Physik / Institute for Theoretical Physics::03781 - Renner, Renato / Renner, Renato
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02511 - Institut für Theoretische Physik / Institute for Theoretical Physics::03781 - Renner, Renato / Renner, Renato
ethz.relation.isPreviousVersionOf
20.500.11850/71054
ethz.date.deposited
2017-06-09T17:46:53Z
ethz.source
ECIT
ethz.identifier.importid
imp59364eb9a425943251
ethz.ecitpid
pub:70614
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-14T17:59:26Z
ethz.rosetta.lastUpdated
2021-02-15T17:35:12Z
ethz.rosetta.versionExported
true
ethz.COinS
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