CORRELATION-EFFECTS IN THE ONE-DIMENSIONAL BOSE-GAS

被引：6
|
作者：
GOLD, A
机构：
[1] Laboratoire de Physique des Solides, Université Paul Sabatier, Toulouse, F-31062
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1993年 / 91卷 / 03期
关键词：
D O I：
10.1007/BF01344069
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We discuss interaction effects for the one-dimensional Bose gas with a repulsive delta-function interaction potential. We use the random-phase approximation and a finite local-field correction. Analytical results are given for the local-field correction, the pair-correlation function and the ground-state energy. The ground-state energy is found to be in much better agreement with the exact result than the ground-state energy calculated within the Bogoliubov approximation, where local-field corrections are neglected.
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页码：397 / 401
页数：5
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