Comment on ``Critical temperature of trapped hard-sphere Bose gases''

Details Comment on ``Critical temperature of trapped hard-sphere Bose gases'' Comment on ``Critical temperature of trapped hard-sphere Bose gases''

1998-12-19

arxiv.org/abs/cond-mat/9812328v1

Physics

Condensed Matter

Statistical Mechanics

2 pages, 1 figure

Scientific paper

In this comment, I discuss a recent path-integral Monte Carlo calculation by Pearson, Pang, and Chen (Phys. Rev. A 58, 4796 (1998)). For bosons with a small hard-core interaction in a harmonic trap, the authors find a critical temperature which does not change with respect to the non-interacting gas. The calculation suffers from a serious discretization error of the many-particle density matrix.

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