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arXiv quant-ph/0001028quant-ph
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广义智能态与SU(1,1)和SU(2)压缩

Generalized intelligent states and SU(1,1) and SU(2) squeezing

D. A. Trifonov

摘要:

一个状态的充分条件|本文给出了使两个观测量A和B的Robertson-Schr dinger不确定关系最小化的方法,对于没有离散谱的A,这也是必要的。这样的状态,称为广义智能态(GIS),表现出任意强压缩(后Eberly)的A和B。构造并讨论了SU(1,1)群和SU(2)群的GIS系统。结果表明,SU(1,1)GIS包含所有的Perelomov相干态以及Barut和Girardello相干态,而Bloch相干态是SU(2)GIS的子集.

英文摘要:

A sufficient condition for a state |ψ> to minimize the Robertson-Schrödinger uncertainty relation for two observables A and B is obtained which for A with no discrete spectrum is also a necessary one. Such states, called generalized intelligent states (GIS), exhibit arbitrarily strong squeezing (after Eberly) of A and B. Systems of GIS for the SU(1,1) and SU(2) groups are constructed and discussed. It is shown that SU(1,1) GIS contain all the Perelomov coherent states (CS) and the Barut and Girardello CS while the Bloch CS are subset of SU(2) GIS.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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