Modulated magnon squeezing states in an antiferromagnet

被引：4
作者：
Peng, F
机构：
[1] Beijing Univ Sci & Technol, Dept Phys, Beijing 100083, Peoples R China
[2] China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 334卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
magnon squeezing states; quantum noise; spin-component fluctuation;
D O I：
10.1016/S0921-4526(03)00098-X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The elementary excitations of the spin waves, magnons, can generate the squeezing states in an antiferromagnet, which allow a reduction in the quantum fluctuation of the spin components to below the zero-point quantum noise level of the vacuum states. Here we calculate the spin-component fluctuation of an antiferromagnet in a laser field, and discuss how to modulate the squeezing states by the external electric field. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：359 / 364
页数：6
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