Reexamination of experimental tests of the Fluctuation theorem

Narayan, Onuttom ; Dhar, Abhishek (2004) Reexamination of experimental tests of the Fluctuation theorem Journal of Physics A: Mathematical and General, 37 (1). pp. 63-76. ISSN 0305-4470

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Official URL: http://iopscience.iop.org/0305-4470/37/1/004

Related URL: http://dx.doi.org/10.1088/0305-4470/37/1/004

Abstract

The fluctuation theorem and the Jarzynski equality are examined in the light of recent experimental tests. For a particle dragged through a solvent, it is shown that Q, the heat exchanged with the reservoir, does not obey the Jarzynski equality due to slowly decaying tails in its distribution. For molecular stretching experiments, substantial corrections to the Jarzynski equality can result from not measuring the force at the end of the molecule that is moved. We also present a proof of the fluctuation theorem for Langevin dynamics that is considerably simpler than the standard proof.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
ID Code:79693
Deposited On:28 Jan 2012 12:08
Last Modified:28 Jan 2012 12:08

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