Single-File Diffusion in a Box

Research output: Contribution to journalArticle


We study diffusion of (fluorescently) tagged hard-core interacting particles of finite size in a finite one-dimensional system. We find an exact analytical expression for the tagged particle probability density function using a Bethe ansatz, from which the mean square displacement is calculated. The analysis shows the existence of three regimes of drastically different behavior for short, intermediate, and large times. The results are in excellent agreement with stochastic simulations (Gillespie algorithm).


External organisations
  • Chalmers University of Technology
  • Massachusetts Institute of Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Article number200601
JournalPhysical Review Letters
Issue number20
Publication statusPublished - 2008
Publication categoryResearch
Externally publishedYes