Change search
ReferencesLink to record
Permanent link

Direct link
Second-law-like inequalities with information and their interpretations
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0003-1835-2963
2014 (English)In: New Journal of Physics, ISSN 1367-2630, Vol. 16, 125007- p.Article in journal (Refereed) Published
Abstract [en]

In a thermodynamic process with measurement and feedback, the second law of thermodynamics is no longer valid. In its place, various second-law-like inequalities have been advanced that each incorporate a distinct additional term accounting for the information gathered through measurement. We quantitatively compare a number of these information measures using an analytically tractable model for the feedback cooling of a Brownian particle. We find that the information measures form a hierarchy that reveals a web of interconnections. To untangle their relationships, we address the origins of the information, arguing that each information measure represents the minimum thermodynamic cost to acquire that information through a separate, distinct measurement procedure.

Place, publisher, year, edition, pages
2014. Vol. 16, 125007- p.
Keyword [en]
nonequilibrium thermodynamics, feedback, information theory, optimal control theory
National Category
Other Physics Topics
URN: urn:nbn:se:kth:diva-159120DOI: 10.1088/1367-2630/16/12/125007ISI: 000346823100001ScopusID: 2-s2.0-84925958925OAI: diva2:783849
Swedish Research Council, 2013-5523

QC 20150127

Available from: 2015-01-27 Created: 2015-01-22 Last updated: 2015-01-27Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Sandberg, Henrik
By organisation
Automatic Control
In the same journal
New Journal of Physics
Other Physics Topics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 11 hits
ReferencesLink to record
Permanent link

Direct link