Correlation functions and momentum distribution of one-dimensional Bose systems

被引：86

作者：

Astrakharchik, GE ^{[1
]}

Giorgini, S

机构：

[1] Univ Trent, Dipartimento Fis, I-38050 Povo, Italy

[2] Univ Trent, INFM, BEC, I-38050 Povo, Italy

来源：

PHYSICAL REVIEW A | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.68.031602

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The ground-state correlation properties of a one-dimensional Bose system described by the Lieb-Liniger Hamiltonian are investigated by using exact quantum Monte Carlo techniques. The pair distribution function, static structure factor, one-body density matrix, and momentum distribution of a homogeneous system are calculated for different values of the gas parameter ranging from the Tonks-Girardeau to the mean-field regime. Results for the momentum distribution of a harmonically trapped gas in configurations relevant to experiments are also presented.

引用

页数：4

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