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Quantum Correlation Coefficients for Angular Coherent States |
| CHEN Wei1, HE Yan2, GUO Hao3 |
| 1Department of Mathematics, Zhangzhou Normal University, Zhangzhou 3630002Department of Physics, Peking University, Beijing 1008713Department of Physics, Tsinghua University, Beijing 100084 |
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| Cite this article: |
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CHEN Wei, HE Yan, GUO Hao 2009 Chin. Phys. Lett. 26 100202 |
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Abstract Quantum covariance and correlation coefficients of angular or SU(2) coherent states are directly calculated for all irreducible unitary representations. These results explicitly verify that the angular coherent states minimize the Robertson-Schrodinger uncertainty relation for all spins, which means that they are the so-called intelligent states. The same results can be obtained by the Schwinger representation approach.
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| Keywords:
02.20.Sv
03.65.Fd
42.50.Ar
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Received: 08 December 2008
Published: 27 September 2009
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