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题名: Creating Bell states and decoherence effects in a quantum-dot system
作者: Yi, XX ;  Jin, GR ;  Zhou, DL
刊名: PHYSICAL REVIEW A
出版日期: 2001
卷号: 63, 期号:6, 页码:-
关键词: ATOMIC ENSEMBLES ;  ENTANGLEMENT ;  EXCITONS ;  COMPUTATION ;  GENERATION ;  PAIRS ;  LIGHT
学科分类: Physics
通讯作者: Yi, XX , NE Normal Univ, Inst Theoret Phys, Changchun 130024, Peoples R China.
部门归属: NE Normal Univ, Inst Theoret Phys, Changchun 130024, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We show how to improve efficiency in preparing Bell states in a coupled two-quantum-dot system, which was introduced by Quiroga and Johnson [Phys. Rev. Lett. 83, 2270 (1999)]. A measurement of the state of a driven quantum laser field leads to wave-function collapse. This results in the highly efficient preparation of Bell states. The effect of decoherence on the efficiency of generating Bell states is also discussed in this paper. The results show that decoherence does not affect the relative weight of \ 00 > and \ 11 > in the output state, but does affect the efficiency of finding Bell states.
收录类别: SCI
WOS记录号: WOS:000169134800023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12735
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yi, XX,Jin, GR,Zhou, DL. Creating Bell states and decoherence effects in a quantum-dot system[J]. PHYSICAL REVIEW A,2001,63(6):-.
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