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arXiv · 1105.1100

Low Density Limit of BCS Theory and Bose-Einstein Condensation of Fermion Pairs

Christian Hainzl·Robert Seiringer
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Abstract

We consider the low density limit of a Fermi gas in the BCS approximation. We show that if the interaction potential allows for a two-particle bound state, the system at zero temperature is well approximated by the Gross-Pitaevskii functional, describing a Bose-Einstein condensate of fermion pairs.

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Christian Hainzl, Robert Seiringer. 2011-05-05. Low Density Limit of BCS Theory and Bose-Einstein Condensation of Fermion Pairs. https://doi.org/10.1007/s11005-011-0535-4

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