Squeezed spin states and pseudo-Hermitian operators

被引：7

作者：

Nayak, N

Deb, RN

Dutta-Roy, B

机构：

[1] SN Bose Natl Ctr Basic Sci, Kolkata 700098, W Bengal, India

[2] Darjeeling Govt Coll, Dept Phys, Darjeeling, India

来源：

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS | 2005年 / 7卷 / 12期

关键词：

spin squeezing; pseudo-Hermiticity; Wigner d-matrix; correlations;

D O I：

10.1088/1464-4266/7/12/047

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that squeezed spin states achieved through nonlinear interactions are eigenstates of a non-Hermitian operator, which however enjoys the property of pseudo-Hermiticity such that the resulting eigenvalues are real. We represent the squeezed states in terms of Wigner d-matrices, making the evaluation of squeezing straightforward. We show that the spin squeezing can go up to 70%.

引用

页码：S761 / S764

页数：4

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