Energy spectrum and entanglement of two tunnel-coupled Bose-Einstein condensates

被引：9

作者：

Cheng Rong ^{[1
]}

Liang Jiu-Qing ^{[1
]}

机构：

[1] Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China

来源：

CHINESE PHYSICS | 2007年 / 16卷 / 03期

关键词：

energy spectrum; entanglement; Bose-Einstein condensates;

D O I：

10.1088/1009-1963/16/3/046

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper obtains the energy-spectrum and eigenstate corrections of two-mode Bose-Einstein condensates (BECs) coupled by quantum tunnelling by perturbation method in both strong and weak tunnelling regions. The population imbalance between two BECs are then studied in terms of the low-lying eigenstates which also characterize the intrinsic entanglement between the two-mode BECs. The strong parity effect in the weak tunnelling region is also investigated.

引用

页码：834 / 839

页数：6

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