Work fluctions for a harmonic oscillator driven by an external random force

Sabhapandit, Sanjib

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4226

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DC Field	Value	Language
dc.contributor.author	Sabhapandit, Sanjib	-
dc.date.accessioned	2011-12-15T05:52:18Z	-
dc.date.available	2011-12-15T05:52:18Z	-
dc.date.issued	2011-10	-
dc.identifier.citation	EPL, 2011, Vol.96, p.20005-p1	en
dc.identifier.issn	0295-5075	-
dc.identifier.issn	1286-4854(online)	-
dc.identifier.uri	http://hdl.handle.net/2289/4226	-
dc.description	Restricted Access.	en
dc.description.abstract	The fluctuations of the work done by an external Gaussian random force on a harmonic oscillator that is also in contact with a thermal bath are studied. We have obtained the exact large deviation function as well as the complete asymptotic forms of the probability density function. The distribution of the work done is found to be non-Gaussian. The steady-state fluctuation theorem holds only if the ratio of the variances, of the external random forcing and the thermal noise, respectively, is less than 1/3. On the other hand, the transient fluctuation theorem holds (asymptotically) for all the values of that ratio. The theoretical asymptotic forms of the probability density function are in very good agreement with the numerics as well as with an experiment.	en
dc.language.iso	en	en
dc.publisher	EPL Association	en
dc.relation.uri	http://dx.doi.org/10.1209/0295-5075/96/20005	en
dc.rights	2011 EPLA	en
dc.subject	Fluctuation phenomena	en
dc.subject	random processes	en
dc.subject	noise	en
dc.subject	Brownian motion	en
dc.subject	Nonequilibrium and irreversible thermodynamics	en
dc.title	Work fluctions for a harmonic oscillator driven by an external random force	en
dc.type	Article	en
Appears in Collections:	Research Papers (TP)

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