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Liu, Yu-xi; Sun, C. P.; Nori, Franco; Liu, YX , RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan
Scalable superconducting qubit circuits using dressed states
Source PublicationPHYSICAL REVIEW A
KeywordCold Trapped Ions Quantum Information Charge Qubits Photon
AbstractWe 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.
2006
ISSN1050-2947
Volume74Issue:5Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5861
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLiu, YX , RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan
Recommended Citation
GB/T 7714
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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