| Work fluctuations in an elastic dumbbell model of polymers in planar elongational flow. | |
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MedLine Citation:
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PMID: 21599196 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We use a path-integral approach to calculate the distribution P(w,t) of the fluctuations in the work w at time t of a polymer molecule (modeled as an elastic dumbbell in a viscous solvent) that is acted on by an elongational flow field having a flow rate γ̇. We find thatP(w,t) is non-Gaussian and that, at long times, the ratio P(w,t)/P(-w,t) is equal to exp[w/(k_{B}T)], independent of γ̇. On the basis of this finding, we suggest that polymers in elongational flows satisfy a fluctuation theorem. |
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Authors:
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Rati Sharma; Binny J Cherayil |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-28 |
Journal Detail:
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Title: Physical review. E, Statistical, nonlinear, and soft matter physics Volume: 83 ISSN: 1550-2376 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-5-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101136452 Medline TA: Phys Rev E Stat Nonlin Soft Matter Phys Country: - |
Other Details:
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Languages: ENG Pagination: 041805 Citation Subset: - |
Affiliation:
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Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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