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Scalable superconducting qubit circuits using dressed states
Liu, Yu-xi; Sun, C. P.; Nori, Franco; Liu, YX , RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan
2006
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号74期号:5页码:-
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.
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
关键词Cold Trapped Ions Quantum Information Charge Qubits Photon
学科领域Physics
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收录类别SCI
WOS记录号WOS:000242408900052
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被引频次:85[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/311006/5861
专题理论物理所SCI论文
通讯作者Liu, YX , RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan
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Liu, Yu-xi,Sun, C. P.,Nori, Franco,et al. Scalable superconducting qubit circuits using dressed states[J]. PHYSICAL REVIEW A,2006,74(5):-.
APA Liu, Yu-xi,Sun, C. P.,Nori, Franco,&Liu, YX , RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan.(2006).Scalable superconducting qubit circuits using dressed states.PHYSICAL REVIEW A,74(5),-.
MLA Liu, Yu-xi,et al."Scalable superconducting qubit circuits using dressed states".PHYSICAL REVIEW A 74.5(2006):-.
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