Generation of Spin Squeezed State via a Degenerate Parametric Down-Converter

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• 作者：Cui-Xia Wang (1)
  
  1. School of Information Technology ; Jiangxi University of Finance and Economics ; Nanchang ; 330032 ; People鈥檚 Republic of China
  
• 关键词：Spin squeezed state ; Detuning ; Nonlinear susceptibility ; Parametric down ; converter
• 刊名：International Journal of Theoretical Physics
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：54
• 期：5
• 页码：1594-1599
• 全文大小：233 KB
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Quantum Physics
  Elementary Particles and Quantum Field Theory
  Mathematical and Computational Physics
  
• 出版者：Springer Netherlands
• ISSN：1572-9575

文摘

We explicitly present an experimentally feasible scheme for generating spin squeezed state of photons via a degenerate parametric down-converter. The evolution of the mean spin vector can be regarded as a precession under some conditions. The spin squeezed state can be generated rapidly in the dynamical process by adjusting some correlative parameters. The strongest squeezing is independent of the detuning, but a larger one induces over a relatively longer squeezing time interval.