Five-loop critical temperature shift in weakly interacting homogeneous Bose-Einstein condensate

被引：41

作者：

Kleinert, H ^{[1
]}

机构：

[1] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany

来源：

MODERN PHYSICS LETTERS B | 2003年 / 17卷 / 19期

关键词：

variational perturbation theory; five-loop shift; Bose-Einstein condensate;

D O I：

10.1142/S0217984903006074

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using variational perturbation theory, we calculate the shift in the critical temperature T-c up to five loops to lowest order in the scattering length a and find DeltaT(c)/T-c((0)) approximate to (1.14 +/- 0.11) an(1/3) where n is the particle density. Our result is slightly lower than the latest Monte Carlo result (1.32 +/- 0.02) an(1/3).

引用

页码：1011 / 1020

页数：10

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