ITP OpenIR  > 理论物理所1978-2010年知识产出
Quantum control limited by quantum decoherence
Xue, F; Yu, SX; Sun, CP; Xue, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
2006
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号73期号:1页码:-
摘要We describe quantum controllability under the influences of the quantum decoherence induced by the quantum control itself. It is shown that, when the controller is considered as a quantum system, it will entangle with its controlled system and then cause quantum decoherence in the controlled system. In competition with this induced decoherence, the controllability will be limited by some uncertainty relation in a well-armed quantum control process. In association with the phase uncertainty and the standard quantum limit, a general model is studied to demonstrate the possibility of realizing a decoherence-free quantum control with a finite energy within a finite time. It is also shown that if the operations of quantum control are to be determined by the initial state of the controller, then due to the decoherence which results from the quantum control itself, there exists a low bound for quantum controllability.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
关键词Computation Evolution
学科领域Physics
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收录类别SCI
WOS记录号WOS:000235008900116
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被引频次:18[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/311006/6059
专题理论物理所1978-2010年知识产出
通讯作者Xue, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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Xue, F,Yu, SX,Sun, CP,et al. Quantum control limited by quantum decoherence[J]. PHYSICAL REVIEW A,2006,73(1):-.
APA Xue, F,Yu, SX,Sun, CP,&Xue, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2006).Quantum control limited by quantum decoherence.PHYSICAL REVIEW A,73(1),-.
MLA Xue, F,et al."Quantum control limited by quantum decoherence".PHYSICAL REVIEW A 73.1(2006):-.
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