Quantum gate operations in the decoherence-free subspace of superconducting quantum-interference devices

Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.78.062321

Title:	Quantum gate operations in the decoherence-free subspace of superconducting quantum-interference devices
Authors:	Wu, C. Feng, X.-L. Yi, X.X. Chen, I.M. Oh, C.H.
Issue Date:	11-Dec-2008
Citation:	Wu, C., Feng, X.-L., Yi, X.X., Chen, I.M., Oh, C.H. (2008-12-11). Quantum gate operations in the decoherence-free subspace of superconducting quantum-interference devices. Physical Review A - Atomic, Molecular, and Optical Physics 78 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.78.062321
Abstract:	We propose a scheme for implementing single-qubit and nontrivial two-qubit gate operations in a system with superconducting quantum interference devices (SQUIDs) via Raman transitions in circuit QED. The gate operations only involve the two lower flux states of the SQUID, and hence the effect of the excited state can be neglected. By encoding quantum information into the decoherence free subspace of the SQUID system, the evolution of the system results in fault-tolerant quantum gates. The effect of decoherence caused by the decay of the transmission line resonator is investigated. © 2008 The American Physical Society.
Source Title:	Physical Review A - Atomic, Molecular, and Optical Physics
URI:	http://scholarbank.nus.edu.sg/handle/10635/97682
ISSN:	10502947
DOI:	10.1103/PhysRevA.78.062321
Appears in Collections:	Staff Publications

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