Nonequilibrium free-energy relations for thermal changes

Williams, Stephen R., Searles, Debra J. and Evans, Denis J. (2008) Nonequilibrium free-energy relations for thermal changes. Physical Review Letters, 100 25: 250601.1-250601.4. doi:10.1103/PhysRevLett.100.250601

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Author Williams, Stephen R.
Searles, Debra J.
Evans, Denis J.
Title Nonequilibrium free-energy relations for thermal changes
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2008-06
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.100.250601
Open Access Status File (Publisher version)
Volume 100
Issue 25
Start page 250601.1
End page 250601.4
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract The Jarzynski equality and the Crooks fluctuation theorem enable the calculation of the change in a system's free energy from nonequilibrium path integrals. These relations consider processes where the system is driven out of equilibrium by a mechanical external agent while remaining in contact with a thermal reservoir at a fixed temperature. We generalize these relations to describe processes driven by any type of external agent, be it thermal or mechanical. Attention is given to the case of a system, initially in equilibrium, that is driven through a temperature change by a heat reservoir. The results are cast in a form applicable to experiments.
Keyword Jarzynski equality
Crooks fluctuation
External agents
Thermal
Mechanical
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemistry and Molecular Biosciences
Australian Institute for Bioengineering and Nanotechnology Publications
 
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