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题名: Constraint dynamics and tracking control to coherence of a thermal dissipative qubit
作者: An, JH ;  Wang, SJ ;  Luo, HG
刊名: CHINESE PHYSICS LETTERS
出版日期: 2005
卷号: 22, 期号:12, 页码:3009-3012
关键词: SYSTEMS ;  DESIGN ;  CODES
学科分类: Physics
通讯作者: Wang, SJ , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China.
部门归属: Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China; Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Constraint dynamics and tracking control strategy to stabilize the coherence of a decoherent system is applied to a dissipative qubit system at a finite temperature. By using a control field dependent on the dynamical state of the qubit via the constraint equations, we show that the coherence of the qubit can be preserved within a finite time duration by the feedback effect of the qubit system. It is also shown that the temperature plays a negative role to this coherence control strategy.
收录类别: SCI
WOS记录号: WOS:000233799600007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13705
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:
An, JH,Wang, SJ,Luo, HG. Constraint dynamics and tracking control to coherence of a thermal dissipative qubit[J]. CHINESE PHYSICS LETTERS,2005,22(12):3009-3012.
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