Multiple regimes of diffusion

作者:Mehlig B*; Wilkinson M; Bezuglyy V; Gustavsson K; Nakamura K
来源:Physical Review E, 2009, 80(1): 011139.
DOI:10.1103/PhysRevE.80.011139

摘要

We consider the diffusion of independent particles experiencing random accelerations by a space- and time-dependent force as well as viscous damping. This model can exhibit several asymptotic behaviors, depending upon the limiting cases which are considered, some of which have been discussed in earlier work. Here, we explore the full space of dimensionless parameters and present an "asymptotic phase diagram" which delineates the limiting regimes.

  • 出版日期2009-7