Exact Solution to Spin Squeezing of the Arbitrary-Range Spin Interaction and Transverse Field Model

被引：0

作者：

Chen, Xing ^{[1
]}

Zhang, Zhen-Wei ^{[1
]}

Zhao, Huan ^{[1
]}

Wang, Nuan-Rang ^{[1
]}

Yang, Ren-Fu ^{[1
]}

Feng, Ke-Ming ^{[1
]}

机构：

[1] Beijing Inst Radio Metrol & Measurement, Sci & Technol Metrol & Calibrat Lab, Beijing 100854, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2016年 / 33卷 / 10期

基金：

中国国家自然科学基金;

关键词：

ENTANGLEMENT; HUNDREDS;

D O I：

10.1088/0256-307X/33/10/104203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate spin squeezing effects of trapped ions in an off-resonance optical potential system using the arbitrary range spin-spin interaction and transverse field model. The collective spin noises at any time are analyzed exactly. The general expression of spin squeezing factor is presented for arbitrary-range spin interaction. For the nearest-neighbor and next-nearest neighbor spin interaction model, the analytic solutions are reduced from the general expressions. It is shown that the maximum spin squeezing is enhanced for the general arbitrary-range spin interaction compared with the nearest-neighbor interaction model as the long-range interaction with arbitrary sites enforces stronger correlation.

引用

页数：5

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