Abstract The dynamical properties of quantum entanglement in an integrable quantum dimer are studied in terms of the reduced-density linear entropy with various coupling parameters and total boson numbers. The characteristic time of decoherence process in the early-time evolution of the linear entropy is obtained, indicating that the characteristic time and the corresponding entropy exhibit a maximum near the position of the corresponding classical separatrix energy.
Received: 09 January 2006
Revised: 04 July 2006
Accepted manuscript online:
(Decoherence; open systems; quantum statistical methods)
Cite this article:
Hou Xi-Wen(侯喜文), Hui Zi(惠子), Ding Rui-Min(丁瑞敏), Chen Xiao-Yang(陈小阳), and Gao Yu(高宇) Entanglement and decoherence in a quantum dimer 2006 Chinese Physics 15 2510
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