Momentum distribution for a one-dimensional trapped gas of hard-core bosons

被引：36
|
作者：
Lapeyre, GJ [1 ]
Girardeau, MD
Wright, EM
机构：
[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA
[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
来源：
PHYSICAL REVIEW A | 2002年 / 66卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.66.023606
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Using the exact N-particle ground state wave function for a one-dimensional gas of hard-core bosons in a harmonic trap we develop an algorithm to compute the reduced single-particle density matrix and corresponding momentum distribution. Accurate numerical results are presented for up to N=8 particles, and the momentum distributions are compared to a recent analytic approximation.
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页码：1 / 6
页数：6
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