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Quantum Entanglement and Normal-to-Local Transition in Molecule H2 |
| LIU Da-Ming;PENG Dong-Ping;HOU Xi-Wen |
| Department of Physics, Huazhong Normal University, Wuhan 430079 |
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| Cite this article: |
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LIU Da-Ming, PENG Dong-Ping, HOU Xi-Wen 2008 Chin. Phys. Lett. 25 1263-1265 |
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Abstract Quantum entanglement of two stretches in molecule H2S is investigated for various initial states in terms of the reduced-density von Neumann entropy and the mean entropy defined by average over time. It is shown that the maximal and the mean entropies of an initial state with local-mode character
are smaller than those with normal-mode character, and the mean entropy displays a maximum near the position of the normal-to-local transition.
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| Keywords:
33.20.Tp
03.65.Ud
03.67.Mn
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Received: 23 January 2008
Published: 31 March 2008
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| PACS: |
33.20.Tp
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(Vibrational analysis)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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