Statistical mechanics of interacting run-and-tumble bacteria

Phys Rev Lett. 2008 May 30;100(21):218103. doi: 10.1103/PhysRevLett.100.218103. Epub 2008 May 29.


We consider self-propelled particles undergoing run-and-tumble dynamics (as exhibited by E. coli) in one dimension. Building on previous analyses at drift-diffusion level for the one-particle density, we add both interactions and noise, enabling discussion of domain formation by "self-trapping," and other collective phenomena. Mapping onto detailed-balance systems is possible in certain cases.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Physiological Phenomena*
  • Biomechanical Phenomena
  • Models, Biological*