Spin squeezed states in a two-dimensional system

被引：0
|
作者：
Feng, P
Ding, DP
机构：
[1] China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
[2] Beijing Univ Sci & Technol, Dept Phys, Beijing 100083, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2004年 / 353卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
spin squeezed states; quantum noise; spin-component fluctuation;
D O I：
10.1016/j.physb.2004.09.015
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The time-evolution of the spin-component fluctuation in a two-dimensional system is studied by a simple quantization scheme of the xy model. The alternate magnetic fields on the two-dimensional plane can effectively modulate the spin fluctuation, and even enable the system to enter into the squeezed states that the fluctuation is below the level of the vacuum fluctuation. The effect of the quantum fluctuation on the magnetic susceptibility of the two-dimensional system is discussed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：116 / 120
页数：5
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