Dephasing of a particle in a dissipative environment

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6 Scopus citations


The motion of a particle in a ring of length L is influenced by a dirty metal environment whose fluctuations are characterized by a short correlation distance ℓ ≪ L. We analyze the induced decoherence process, and compare the results with those obtained in the opposing Caldeira-Leggett limit (ℓ ≫ L). A proper definition of the dephasing factor that does not depend on a vague semiclassical picture is employed. Some recent Monte Carlo results about the effect of finite temperatures on 'mass renormalization' in this system are illuminated.

Original languageEnglish
Pages (from-to)12281-12297
Number of pages17
JournalJournal of Physics A: Mathematical and Theoretical
Issue number41
StatePublished - 12 Oct 2007

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Modeling and Simulation
  • Mathematical Physics
  • General Physics and Astronomy


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