NONPERTURBATIVE APPROACH TO SUPERFLUID BOSE SYSTEMS

被引：0

作者：

Peletminskii, A. S. ^{[1
]}

Peletminskii, S. V. ^{[1
]}

Poluektov, Yu. M. ^{[1
]}

机构：

[1] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-61108 Kharkov, Ukraine

来源：

PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY | 2012年 / 01期

关键词：

EINSTEIN CONDENSATION; VORTEX; GAS;

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study a superfluid Bose system with single-particle and pair condensates using a nonperturbative approach. The self-consistency equations for two order parameters are obtained from the principle of maximum entropy. They are analyzed numerically at zero temperature for dilute (gases of alkali-metal atoms) and dense (superfluid He-4) systems. It is shown that the pair condensate fraction is negligible for dilute systems and becomes dominant for dense systems.

引用

页码：240 / 244

页数：5

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