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Entropy production in a persistent random walk

Author

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  • Gilbert, T.
  • Dorfman, J.R.

Abstract

We consider a one-dimensional persistent random walk viewed as a deterministic process with a form of time reversal symmetry. Particle reservoirs placed at both ends of the system induce a density current which drives the system out of equilibrium. The phase-space distribution is singular in the stationary state and has a cumulative form expressed in terms of generalized Takagi functions. The entropy production rate is computed using the coarse-graining formalism of Gaspard, Gilbert and Dorfman. In the continuum limit, we show that the value of the entropy production rate is independent of the coarse graining and agrees with the phenomenological entropy production rate of irreversible thermodynamics.

Suggested Citation

  • Gilbert, T. & Dorfman, J.R., 2000. "Entropy production in a persistent random walk," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 282(3), pages 427-449.
    • Handle: RePEc:eee:phsmap:v:282:y:2000:i:3:p:427-449
    DOI: 10.1016/S0378-4371(00)00082-0
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