Many-body ground-state properties of an attractive Bose-Einstein condensate in a one-dimensional ring

被引：7

作者：

Montina, A ^{[1
]}

Arecchi, FT ^{[1
]}

机构：

[1] Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, FI, Italy

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.71.063615

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study a Bose-Einstein condensate with attractive interactions in a one-dimensional ring and show that the ground state is well described by the superposition of bright solitons. A position measurement of some atoms gives rise to the state reduction of the soliton position, which increases the condensate fraction. The bunched many-body ground state is well approximated by a simple variational wave function.

引用

页数：5

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