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Quantum Information Processing
Published in: Quantum Information Processing 6/2015

01-06-2015

Quantum information processing in collective-rotating decoherence-free subspace

Authors: Shi-Lei Su, Hong-Fu Wang, Shou Zhang

Published in: Quantum Information Processing | Issue 6/2015

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Abstract

Using the atomic state encoded in the collective-rotating decoherence-free subspace (CRDFS), two methods to construct the hybrid-controlled-phase-flip gate between photon and the single logic qubit are presented assisted by the cavity input–output process. Then, ways to realize the common single-qubit operations in CRDFS are given out. Based on the former gate and single-qubit operations, methods to construct the parity gate and controlled-phase gate in CRDFS are discussed. Next, two ways to realize the Bell-state measurement and the approach to realize quantum information transfer in CRDFS are proposed. Final discussion and numerical simulation reveal that our work is feasible and useful for quantum information processing tasks in CRDFS.
previous article Syndrome measurement strategies for the [[7,1,3]] code
next article Realization of quantum gates with multiple control qubits or multiple target qubits in a cavity

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Metadata
Title
Quantum information processing in collective-rotating decoherence-free subspace
Authors
Shi-Lei Su
Hong-Fu Wang
Shou Zhang
Publication date
01-06-2015
Publisher
Springer US
Published in
Quantum Information Processing / Issue 6/2015
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-0975-3

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