Diffusion of a Brownian ellipsoid in a force field
Statistical Mechanics
2018-12-19 v1 Soft Condensed Matter
Abstract
We calculate the effective long-term convective velocity and dispersive motion of an ellipsoidal Brownian particle in three dimensions when it is subjected to a constant external force. This long-term motion results as a "net" average behavior from the particle rotation and translation on short time scales. Accordingly, we apply a systematic multi-scale technique to derive the effective equations of motion valid on long times. We verify our theoretical results by comparing them to numerical simulations.
Keywords
Cite
@article{arxiv.1602.04624,
title = {Diffusion of a Brownian ellipsoid in a force field},
author = {Erik Aurell and Stefano Bo and Marcelo Dias and Ralf Eichhorn and Raffaele Marino},
journal= {arXiv preprint arXiv:1602.04624},
year = {2018}
}