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Bipartite Entanglement in the Two-Mode Quantum Kicked Top |
| SONG Li-Jun1,3,WANG Xiao-Guang2;LI Yong-Da3;ZONG Zhan-Guo1 |
| ¹Institute of Applied Physics, Changchun University, Changchun 130022
²Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027
³School of Science, Changchun University of Science and Technology, Changchun 130022
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| Cite this article: |
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SONG Li-Jun, WANG Xiao-Guang, LI Yong-Da et al 2006 Chin. Phys. Lett. 23 3190-3193 |
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Abstract We show that the bipartite entanglement in the two-mode quantum kicked top can reveal the underlying chaotic and regular structures in phase space: namely, the entanglement displays a rapid rise after a very short time for an initial spin coherent state centred in a chaotic region of the phase space, whereas the entanglement displays a periodic modulation for the coherent state centred at an elliptic fixed point. The quantum--classical correspondence is investigated by studying the mean and maximal linear entropy.
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| Keywords:
05.45.Mt
03.65.Ud
42.50.Dv
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Published: 01 December 2006
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| PACS: |
05.45.Mt
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(Quantum chaos; semiclassical methods)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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42.50.Dv
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(Quantum state engineering and measurements)
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