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- Title
Tunable interaction of superconducting flux qubits in circuit QED.
- Authors
Xue, Zheng-Yuan; Li, Ya-Fei; Zhou, Jian; Gao, Yu-Mei; Zhang, Gang
- Abstract
We propose to implement tunable interaction of superconducting flux qubits with cavity-assisted interaction and strong driving. The qubits have a three-level Lambda configuration, and the decay of the excited state will be greatly suppressed due to the effective large detuning. The implemented interaction is insensitive to the cavity field state and can be controlled by modulating the phase difference of the driving fields of the qubits. In particular, our scheme is based on the typical circuit QED setup and thus will provide a simple method towards the tunable interaction of superconducting qubits. Finally, we consider the generation of two and four qubits entangled states with the constructed interaction under the influence of typical decoherence effects.
- Subjects
DECOHERENCE (Quantum mechanics); QUANTUM computing; SUPERCONDUCTORS; EXCITED state energies; LAMBDA calculus; FLUX (Energy)
- Publication
Quantum Information Processing, 2016, Vol 15, Issue 2, p721
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-015-1185-8