The instantaneous fluctuation theorem
Date
2013-11-11
Authors
Petersen, Charlotte F.
Evans, Denis J.
Williams, Stephen R.
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American Institute of Physics (AIP)
Abstract
We give a derivation of a new instantaneous fluctuation relation for an arbitrary phase function which is odd under time reversal. The form of this new relation is not obvious, and involves observing the system along its transient phase space trajectory both before and after the point in time at which the fluctuations are being compared. We demonstrate this relation computationally for a number of phase functions in a shear flow system and show that this non-locality in time is an essential component of the instantaneous fluctuation theorem.
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The Journal of Chemical Physics
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