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题名: Scalable superconducting qubit circuits using dressed states
作者: Liu, Yu-xi ;  Sun, C. P. ;  Nori, Franco
刊名: PHYSICAL REVIEW A
出版日期: 2006
卷号: 74, 期号:5, 页码:-
关键词: COLD TRAPPED IONS ;  QUANTUM INFORMATION ;  CHARGE QUBITS ;  PHOTON
学科分类: Physics
通讯作者: Liu, YX , RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan
部门归属: RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan; CREST, Japan Sci & Technol Agcy, Kawaguchi, Saitama 3320012, Japan; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Michigan, Ctr Theoret Phys, Phys Dept, Ann Arbor, MI 48109 USA; Univ Michigan, Ctr Study Complex Syst, Ann Arbor, MI 48109 USA
英文摘要: We study a coupling (decoupling) method between a superconducting qubit and a data bus that uses a controllable time-dependent electromagnetic field (TDEF). As in recent experiments, the data bus can be either an LC circuit or a cavity field. When the qubit and the data bus are initially fabricated, their detuning should be made far larger than their coupling constant, so these can be treated as two independent subsystems. However, if a TDEF is applied to the qubit, then a "dressed qubit" (i.e., qubit plus the electromagnetic field) can be formed. By choosing appropriate parameters for the TDEF, the dressed qubit can be coupled to the data bus and, thus, the qubit and the data bus can exchange information with the assistance of the TDEF. This mechanism allows the scalability of the circuit to many qubits. With the help of the TDEF, any two qubits can be selectively coupled to (and decoupled from) a common data bus. Therefore, quantum information can be transferred from one qubit to another.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000242408900052
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5861
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:
Liu, Yu-xi,Sun, C. P.,Nori, Franco. Scalable superconducting qubit circuits using dressed states[J]. PHYSICAL REVIEW A,2006,74(5):-.
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