Existence of long-range order for trapped interacting bosons

被引：26
作者：
Fischer, UR [1 ]
机构：
[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
来源：
PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 28期
关键词：
D O I：
10.1103/PhysRevLett.89.280402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We derive an inequality governing "long-range" order for a localized Bose-condensed state, relating the condensate fraction at a given temperature with effective curvature radius of the condensate and total particle number. For the specific example of a one-dimensional, harmonically trapped dilute Bose condensate, it is shown that the inequality gives an explicit upper bound for the Thomas-Fermi condensate size which may be tested in current experiments.
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页数：4
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