Chin. Phys. Lett.  2005, Vol. 22 Issue (3): 521-524    DOI:
Original Articles |
Squeezing in the Real and Imaginary Spin Coherent States
YAN Dong1;WANG Xiao-Guang2;WU Ling-An3
1Institute of Applied Physics, Changchun University, Changchun 130022 2Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027 3Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
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YAN Dong, WANG Xiao-Guang, WU Ling-An 2005 Chin. Phys. Lett. 22 521-524
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Abstract We study spin squeezing properties in the real and imaginary spin coherent states. We obtain analytical expressions of two spin squeezing parameters via a novel ladder operator formalism of the spin coherent state and the generation function method. Numerical results of the spin squeezing properties are discussed in detail, and the real and imaginary spin coherent state can be spin squeezed over a large range of parameters.

Keywords: 03.65.Ud      03.67.-a     
Published: 01 March 2005
PACS:  03.65.Ud (Entanglement and quantum nonlocality)  
  03.67.-a (Quantum information)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2005/V22/I3/0521
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