Phase Estimation Sensitivity in Two-Species Bose-Einstein Condensate

被引：0
|
作者：
Chen, Gang [1 ]
Liu, Li-Shu [1 ]
Rao, Song [1 ]
机构：
[1] Jiangxi Inst Educ, Dept Phys, Nanchang 330029, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2012年 / 51卷 / 12期
关键词：
Phase estimation sensitivity; Quantum Fisher information; Bose-Einstein condensate; Josephson-like tunneling; QUANTUM FISHER INFORMATION; STATISTICAL DISTANCE; STATES; MODEL;
D O I：
10.1007/s10773-012-1283-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate phase estimation sensitivity two-species Bose-Einstein condensate with nonlinear interatomic interactions and Josephson-like tunneling. Numerical analyzes of quantum Fisher information and phase estimation sensitivity are presented. Quantum Fisher information and phase estimation sensitivity are independent of Josephson-like coupling and they are insensitive to interatomic interaction. The better values of quantum Fisher information and phase estimation sensitivity can be achieved by increasing the population difference of atoms in two condensates.
引用
收藏
页码：3917 / 3924
页数：8
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