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题名: Entanglement evolution of a spin-chain bath coupled to a quantum spin
作者: Wang, Zhi-Hui ;  Wang, Bing-Shen ;  Su, Zhao-Bin
刊名: PHYSICAL REVIEW B
出版日期: 2009
卷号: 79, 期号:10, 页码:-
关键词: DECOHERENCE
学科分类: Physics
通讯作者: Wang, ZH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
部门归属: [Wang, ZH; Su, ZB] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Wang, BS] Chinese Acad Sci, State Key Lab Semicond Superlattice & Microstruct, Beijing 100083, Peoples R China; [Wang, BS] Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China
英文摘要: For an electron spin in coupling with an interacting spin chain via hyperfine-type interaction, we investigate the dynamical evolutions of the pairwise entanglement of the spin chain, and a correlation function joined the electron spin with a pair of chain spins in correspondence to the electron-spin coherence evolution. Both quantities manifest a periodic and a decaying evolution. The entanglement of the spin bath is significant in distinguishing the zero-coherence status exhibited in periodic and decoherence evolutions of the electron spin. The periodical concurrence evolution of the spin bath characterizes the whole system in a coherence-preserving phase, particularly for the case that the associated periodic coherence evolution is predominated by zero value in the infinite chain-length limit, which was often regarded as the realization of decoherence.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000264768600084
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5381
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Wang, Zhi-Hui,Wang, Bing-Shen,Su, Zhao-Bin. Entanglement evolution of a spin-chain bath coupled to a quantum spin[J]. PHYSICAL REVIEW B,2009,79(10):-.
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