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题名: Fast entanglement of two charge-phase qubits through nonadiabatic coupling to a large Josephson junction
作者: Wang, YD ;  Zhang, P ;  Zhou, DL ;  Sun, CP
刊名: PHYSICAL REVIEW B
出版日期: 2004
卷号: 70, 期号:22, 页码:-
关键词: MACROSCOPIC QUANTUM STATES ;  OSCILLATIONS ;  GATES ;  IONS
学科分类: Physics
通讯作者: Wang, YD , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We propose a theoretical protocol for quantum logic gates between two Josephson junction charge-phase qubits through the control of their coupling to a large junction whose Josephson coupling energy is much larger than its Coulomb charge energy. In the low excitation limit of the large junction, it behaves effectively as a quantum data-bus mode of a harmonic oscillator. Our protocol can be fast since it does not require the data-bus to stay adiabatically in its ground state, as such it can be implemented over a wide parameter regime independent of the data-bus quantum state.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000226111800096
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13954
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:
Wang, YD,Zhang, P,Zhou, DL,et al. Fast entanglement of two charge-phase qubits through nonadiabatic coupling to a large Josephson junction[J]. PHYSICAL REVIEW B,2004,70(22):-.
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