Abstract
In this paper, we consider periodically inhomogeneous Markov chains, which can be regarded as a simple version of physical model—Brownian motors. We introduce for them the concepts of periodical reversibility, detailed balance, entropy production rate and circulation distribution. We prove the equivalence of the following statements: The time-periodic Markov chain is periodically reversible; It is in detailed balance; Kolmogorov's cycle condition is satisfied; Its entropy production rate vanishes; Every circuit and its reversed circuit have the same circulation weight. Hence, in our model of Markov chains, the directed transport phenomenon of Brownian motors, i.e. the existence of net circulation, can occur only in nonequilibrium and irreversible systems. Moreover, we verify the large deviation property and the Gallavotti-Cohen fluctuation theorem of sample entropy production rates of the Markov chain.
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Ge, H., Jiang, DQ. & Qian, M. A Simple Discrete Model of Brownian Motors: Time-periodic Markov Chains. J Stat Phys 123, 831–859 (2006). https://doi.org/10.1007/s10955-006-9099-6
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DOI: https://doi.org/10.1007/s10955-006-9099-6