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Article

Entropy Production of Run-and-Tumble Particles

1
Istituto per le Applicazioni del Calcolo, Consiglio Nazionale delle Ricerche, Via Pietro Castellino 111, I-80131 Napoli, Italy
2
Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Piazzale A. Moro 2, I-00185 Roma, Italy
3
Dipartimento di Fisica, Sapienza Università di Roma, Piazzale A. Moro 2, I-00185 Roma, Italy
*
Author to whom correspondence should be addressed.
Entropy 2024, 26(6), 443; https://doi.org/10.3390/e26060443
Submission received: 24 April 2024 / Revised: 21 May 2024 / Accepted: 22 May 2024 / Published: 24 May 2024
(This article belongs to the Collection Disorder and Biological Physics)

Abstract

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.
Keywords: active matter; entropy production; non-equilibrium; exact results; run-and-tumble motion active matter; entropy production; non-equilibrium; exact results; run-and-tumble motion

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MDPI and ACS Style

Paoluzzi, M.; Puglisi, A.; Angelani, L. Entropy Production of Run-and-Tumble Particles. Entropy 2024, 26, 443. https://doi.org/10.3390/e26060443

AMA Style

Paoluzzi M, Puglisi A, Angelani L. Entropy Production of Run-and-Tumble Particles. Entropy. 2024; 26(6):443. https://doi.org/10.3390/e26060443

Chicago/Turabian Style

Paoluzzi, Matteo, Andrea Puglisi, and Luca Angelani. 2024. "Entropy Production of Run-and-Tumble Particles" Entropy 26, no. 6: 443. https://doi.org/10.3390/e26060443

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