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Entanglement evolution of a spin-chain bath coupled to a quantum spin
Wang, Zhi-Hui; Wang, Bing-Shen; Su, Zhao-Bin; Wang, ZH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
2009
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号79期号:10页码:-
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.
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
关键词Decoherence
学科领域Physics
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收录类别SCI
WOS记录号WOS:000264768600084
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5381
专题理论物理所SCI论文
通讯作者Wang, ZH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
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Wang, Zhi-Hui,Wang, Bing-Shen,Su, Zhao-Bin,et al. Entanglement evolution of a spin-chain bath coupled to a quantum spin[J]. PHYSICAL REVIEW B,2009,79(10):-.
APA Wang, Zhi-Hui,Wang, Bing-Shen,Su, Zhao-Bin,&Wang, ZH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.(2009).Entanglement evolution of a spin-chain bath coupled to a quantum spin.PHYSICAL REVIEW B,79(10),-.
MLA Wang, Zhi-Hui,et al."Entanglement evolution of a spin-chain bath coupled to a quantum spin".PHYSICAL REVIEW B 79.10(2009):-.
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