Starts 27 Nov 2012 11:30

Ends 27 Nov 2012 20:00

Central European Time

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Joint ICTP/SISSA Statistical physics seminar: "Infinite family of second-law-like inequalities"

Starts 27 Nov 2012 11:30

Ends 27 Nov 2012 20:00

Central European Time

ICTP

Leonardo da Vinci Building Luigi Stasi Seminar Room

Strada Costiera, 11
I - 34151 Trieste (Italy)

The probability distribution function for an out of equilibrium system may sometimes be approximated by a physically motivated "trial" distribution. A particularly interesting case is when a driven system (e.g., active matter) is approximated by a thermodynamic one. We show here that every set of trial distributions yields an inequality playing the role of a generalization of the second law. This suggests a variational procedure that may be implemented numerically and even experimentally to approximate the distribution function in terms of effective interactions. The fluctuation relation behind this inequality, -a natural and practical extension of the Hatano-Sasa theorem-, does not rely on the a priori knowledge of the stationary probability distribution.

- M. Poropat