On tagged particle dynamics in highly confined fluids

J. K. Percus

Research output: Contribution to journalArticlepeer-review


Heuristic approaches to the statistics of tagged particle motion in a one-dimensional hard point particle fluid are discussed. An exact expression is obtained for the finite N case with arbitrary single-particle interactionless dynamics. This is extended to the mean over tagged particles as N→∞, and a simple form presented in terms of elementary physical quantities. Extension to single-file flow under quasi-one-dimensional confinement is initiated.

Original languageEnglish (US)
Pages (from-to)40-50
Number of pages11
JournalJournal of Statistical Physics
Issue number1
StatePublished - Feb 2010


  • Confined fluids
  • Self dynamics
  • Single file

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics


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