Entropy production in continuous phase space systems

Abstract

We propose an alternative method to compute the entropy production of a classical underdamped nonequilibrium system in a continuous phase space. This approach has the advantage that it is not necessary to distinguish between even and odd-parity variables. We show that the method leads to the same local entropy production as in previous studies while the differential entropy production along a stochastic trajectory turns out to be different. This demonstrates that the differential entropy production in continuous phase space systems is not uniquely defined.

LaTeX, 18 pages, 2 PNG figures

References in corpus (2)

• Stochastic thermodynamics, fluctuation theorems, and molecular machines
• Fluctuation theorems in general stochastic processes with odd-parity variables

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