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
收藏
页码：1011 / 1020
页数：10
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