# Run-and-tumble particles, telegrapher's equation and absorption problems with partially reflecting boundaries

Research paper by Luca Angelani

Indexed on: 19 Jan '16Published on: 19 Jan '16Published in: Physics - Statistical Mechanics

#### Abstract

Absorption problems of run-and-tumble particles, described by the telegrapher's equation, are analyzed in one space dimension considering partially reflecting boundaries. Exact expressions for the probability distribution function in the Laplace domain and for the mean time to absorption are given, discussing some interesting limits (Brownian and wave limit, large volume limit) and different case studies (semi-infinite segment, equal and symmetric boundaries, totally/partially reflecting boundaries).