Applied Physics B

, Volume 117, Issue 3, pp 775–784 | Cite as

A grand-canonical approach to the disordered Bose gas

Article

Abstract

We study the problem of disordered interacting bosons within grand-canonical thermodynamics and Bogoliubov theory. We compute the fractions of condensed and non-condensed particles and corrections to the compressibility and the speed of sound due to interaction and disorder. There are two small parameters, the disorder strength compared to the chemical potential and the dilute-gas parameter.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Max Planck Institute for the Physics of Complex SystemsDresdenGermany
  2. 2.Fachbereich PhysikUniversität KonstanzKonstanzGermany
  3. 3.Centre for Quantum TechnologiesNational University of SingaporeSingaporeSingapore

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