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Excitonic condensation in quasi-two-dimensional systems

Authors
  • Crisan, M.
  • Tifrea, I.
Type
Published Article
Publication Date
Nov 24, 2005
Submission Date
Nov 24, 2005
Identifiers
DOI: 10.1016/j.physleta.2005.07.091
arXiv ID: cond-mat/0511593
Source
arXiv
License
Unknown
External links

Abstract

We present a low energy model for the Bose-Einstein condensation in a quasi-two-dimensional excitonic gas. Using the flow equations of the Renormalization group and a $\Phi^4$ model with the dynamical critical exponent $z=2$ we calculate the temperature dependence of the critical density, coherence length, magnetic susceptibility, and specific heat. The model can be relevant for the macroscopic coherence observed in GaAs/AlGaAs coupled quantum wells.

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