# The Laser Phase Transition Analogy and the Partition Function for Bose Condensation of *N* Atoms in a Trap

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## Abstract

In Ref. [1] [PRL **82**, 3927, (1999)] the first analytical calculation of the partition function for the *N*-atom Bose-Einstein Condensate (BEC) was carried out. At the conference the question was raised: Is the partition function thus obtained the same as the usual statistical mechanical one? We here show that it is and also present recent improvements of the theory.

## Keywords

Partition Function Master Equation Heat Bath Physical Review Letter Harmonic Trap
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## References

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