Quantum phase transition and entanglement in Li atom system
Quantum phase transition and entanglement in Li atom system
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DOI：
10.1007/s11433-008-0180-9
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发表时间：
2007-05
期刊：
影响因子：
--
通讯作者：
Li Si;J. Hou
中科院分区：
文献类型：
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作者：
Li Si;J. Hou
By use of the exact diagonalization method, the quantum phase transition and entanglement in a 6-Li atom system are studied. It is found that entanglement appears before the quantum phase transition and disappears after it in this exactly solvable quantum system. The present results show that the von Neumann entropy, as a measure of entanglement, may reveal the quantum phase transition in this model.
