Diffusion of particles bouncing on a one-dimensional periodically corrugated floor

T. Harayama, P. Gaspard

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We report on a class of spatially extended mechanical systems sustaining a transport process of diffusive type. These systems consist of a point particle subject to a constant vertical acceleration and bouncing on a one-dimensional periodically corrugated floor. We show that the deterministic dynamics of these systems is chaotic with small elliptic islands for many parameter values. The motion of particles perturbed by a small noise has a horizontal diffusion that is normal. In such a case, we show that the diffusion coefficient oscillates periodically as the energy of particles increases. In the absence of noise, there still exists an effective numerical value for the diffusion coefficient and this value has an irregular dependence on energy.

Original languageEnglish
Article number036215
Pages (from-to)362151-3621516
Number of pages3259366
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume64
Issue number3
DOIs
Publication statusPublished - 2001 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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