Run-and-tumble motion in a harmonic potential: field theory and entropy production

被引：38
|
作者：
Garcia-Millan, Rosalba [1 ,2 ,3 ]
Pruessner, Gunnar [1 ,3 ]
机构：
[1] Imperial Coll London, Dept Math, 180 Queens Gate, London SW7 2AZ, England
[2] Univ Cambridge, Ctr Math Sci, DAMTP, Wilberforce Rd, Cambridge CB3 0WA, England
[3] Imperial Coll London, Ctr Complex Sci, London, England
来源：
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2021年 / 2021卷 / 06期
基金：
欧洲研究理事会;
关键词：
active matter; exact results; self-propelled particles; stochastic particle dynamics; ACTIVE BROWNIAN PARTICLES;
D O I：
10.1088/1742-5468/ac014d
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Run-and-tumble (RnT) motion is an example of active motility where particles move at constant speed and change direction at random times. In this work we study RnT motion with diffusion in a harmonic potential in one dimension via a path integral approach. We derive a Doi-Peliti field theory and use it to calculate the entropy production and other observables in closed form. All our results are exact.
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页数：31
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