Quantum Fisher Information for su (2) Atomic Coherent States and su (1,1) Coherent States

被引：0

作者：

Song, Qi ^{[1
]}

Liu, Honggang ^{[1
]}

Zhao, Yuefeng ^{[1
]}

Zeng, Yan ^{[1
]}

Wang, Gangcheng ^{[1
]}

Xue, Kang ^{[1
]}

机构：

[1] NE Normal Univ, Sch Phys, Changchun 130024, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2016年 / 55卷 / 03期

关键词：

Quantum Fisher information; su (2) atomic coherent states; su(1,1) coherent states;

D O I：

10.1007/s10773-015-2805-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate quantum Fisher information (QFI) for su (2) atomic coherent states and su(1, 1) coherent states. In this work, we find that for su(2) atomic coherent states, the QFI with respect to 79 (F-upsilon) is independent of phi, the QFI with respect to phi (F phi) is governed by 79. Analogously, for su(1, 1) coherent states, TF is independent of co, and F-phi, is determined by r. Particularly, our results show that Tv, is symmetric with respect to upsilon = pi/2 for su(2) atomic coherent states. And for su(1, 1) coherent states, Tv, also possesses symmetry with respect to r = 0.

引用

页码：1679 / 1685

页数：7

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