Entropy production of run-and-tumble particles
Entropy(2024)
摘要
We analyze the entropy production in run-and-tumble models. After presenting
the general formalism in the framework of the Fokker-Planck equations in one
space dimension, we derive some known exact results in simple physical
situations (free run-and-tumble particles and harmonic confinement). We then
extend the calculation to the case of anisotropic motion (different speeds and
tumbling rates for right and left oriented particles), obtaining exact
expressions of the entropy production rate. We conclude by discussing the
general case of heterogeneous run-and-tumble motion described by
space-dependent parameters and extending the analysis to the case of
d-dimensional motions.
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