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T_c for dilute Bose gases: beyond leading order in 1/N

Peter Arnold·Boris Tomasik
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Abstract

Baym, Blaizot, and Zinn-Justin have recently used the large N approximation to calculate the effect of interactions on the transition temperature of dilute Bose gases. We extend their calculation to next-to-leading-order in 1/N and find a relatively small correction of -26% to the leading-order result. This suggests that the large N approximation works surprisingly well in this application.

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Peter Arnold, Boris Tomasik. 2000-05-23. T_c for dilute Bose gases: beyond leading order in 1/N. https://doi.org/10.1103/physreva.62.063604

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