Interaction Effects on Number Fluctuations in a Bose-Einstein Condensate of Light

E. C. I. van der Wurff; A. -W. de Leeuw; R. A. Duine; H. T. C. Stoof

doi:10.1103/PhysRevLett.113.135301

Interaction Effects on Number Fluctuations in a Bose-Einstein Condensate of Light

Quantum Gases 2015-06-19 v2

Authors: E. C. I. van der Wurff , A. -W. de Leeuw , R. A. Duine , H. T. C. Stoof

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Abstract

We investigate the effect of interactions on condensate-number fluctuations in Bose-Einstein condensates. For a contact interaction we variationally obtain the equilibrium probability distribution for the number of particles in the condensate. To facilitate comparison with experiment, we also calculate the zero-time delay autocorrelation function $g^{(2)}(0)$ for different strengths of the interaction. Finally, we focus on the case of a condensate of photons and discuss possible mechanisms for the interaction.

Keywords

Bose-Einstein condensate number fluctuations contact interaction photon condensate autocorrelation function

Cite

@article{arxiv.1403.5503,
  title  = {Interaction Effects on Number Fluctuations in a Bose-Einstein Condensate of Light},
  author = {E. C. I. van der Wurff and A. -W. de Leeuw and R. A. Duine and H. T. C. Stoof},
  journal= {arXiv preprint arXiv:1403.5503},
  year   = {2015}
}

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13 pages, version 3, 4 figures

Interaction Effects on Number Fluctuations in a Bose-Einstein Condensate of Light

Abstract

Keywords

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