The convex hull of the run-and-tumble particle in a plane
The convex hull of the run-and-tumble particle in a plane
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平面中奔跑翻滚粒子的凸包
DOI:
10.1088/1742-5468/ab7c5f
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
G. Schehr
中科院分区:
文献类型:
--
作者:
A.K. Hartmann;S.N. Majumdar;H. Schawe;G. Schehr
We study the statistical properties of the convex hull of a planar run-and-tumble particle (RTP), also known as the'persistent random walk', where the particle/walker runs ballistically between tumble events at which it changes its direction randomly. We consider two different statistical ensembles where we either fix (i) the total number of tumblings n or (ii) the total duration t of the time interval. In both cases, we derive exact expressions for the average perimeter of the convex hull and then compare to numerical estimates finding excellent agreement. Further, we numerically compute the full distribution of the perimeter using Markov chain Monte Carlo techniques, in both ensembles, probing the far tails of the distribution, up to a precision smaller than 10− 100. This also allows us to characterize the rare events that contribute to the tails of these distributions.
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DOI:
10.1103/physreve.97.062159
发表时间:
2018
期刊:
Physical review. E
影响因子:
--
作者:
H. Schawe;A.K. Hartmann;S.N. Majumdar
通讯作者:
S.N. Majumdar
DOI:
10.1088/1742-5468/aa8c11
发表时间:
2017
期刊:
Journal of Statistical Mechanics: Theory and Experiment
影响因子:
--
作者:
D. Grebenkov;Yann Lanoisel'ee;S. Majumdar
通讯作者:
S. Majumdar
影响因子:
1.7
作者:
Zakhar Kabluchko;Vladislav Vysotsky;Dmitry Zaporozhets
通讯作者:
Dmitry Zaporozhets
DOI:
--
发表时间:
2015
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
M. Chupeau;O. Bénichou;S. Majumdar
通讯作者:
S. Majumdar
影响因子:
44.1
作者:
Marchetti, M. C.;Joanny, J. F.;Simha, R. Aditi
通讯作者:
Simha, R. Aditi