Critical time scale of coarse-graining entropy production.

Sohn, Jang-Il · Phys Rev E · 2016

basic_science · Level V

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Abstract

We study coarse-grained entropy production in an asymmetric random walk system on a periodic one-dimensional lattice. In coarse-grained systems, the original dynamics are unavoidably destroyed, but the coarse-grained entropy production is not hidden below the critical time-scale separation. The hidden entropy production is rapidly increasing near the critical time-scale separation.