Correlation functions for a Bose-Einstein condensate in the Bogoliubov approximation

被引：3
|
作者：
Montina, A
Arimondo, E
机构：
[1] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy
[2] Univ Pisa, Ist Nazl Fis Mat, I-56127 Pisa, Italy
来源：
EUROPEAN PHYSICAL JOURNAL D | 2001年 / 14卷 / 01期
关键词：
D O I：
10.1007/s100530170241
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this article we introduce a differential equation for the first order correlation function G((1)) of a Bose-Einstein condensate at T = 0. The Bogoliubov approximation is used. Our approach points out directly the dependence on the physical parameters. Furthermore it suggests a numerical method to calculate G((1)) without solving an eigenvector problem. The G((1)) equation is generalized to the case of non zero temperature.
引用
收藏
页码：105 / 110
页数：6
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