Bose-Einstein condensation and superfluidity of dirty Bose gas

被引：1
|
作者：
Kobayashi, M [1 ]
Tsubota, M [1 ]
机构：
[1] Osaka City Univ, Fac Sci, Sumiyoshi Ku, Osaka 5588585, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
superfluidity; Bose-Einstein condensation; He-4; random media;
D O I：
10.1016/S0921-4526(02)01962-2
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We develop the dilute Bose gas model with random potential in order to understand the Bose system in random media such as He-4 in porous glass. Using the random potential taking account of the pore size dependence, we can compare quantitatively the calculated specific heat with the experimental results, without free parameters. The agreement is excellent at low temperatures, which justifies our model. Our model can predict some unobserved phenomena in this system. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：212 / 213
页数：2
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