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Quantum Information Processing
Published in: Quantum Information Processing 2/2014

01-02-2014

Quantum computation in the decoherence-free subspaces with cavity QED

Authors: Yue-Yue Chen, Xun-Li Feng, C. H. Oh

Published in: Quantum Information Processing | Issue 2/2014

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Abstract

We present a scheme to implement quantum computation in decoherence-free subspaces (DFSs) with four atoms in a single-mode cavity. A four-dimensional DFS is constituted to protect quantum information when the full symmetry of interaction between system and environment is broken in a specific way, and entangling two-qubit logic gates and noncommuting single-qubit gates are implemented in such DFS. The gate fidelity is numerically calculated, and the feasibility of the approximations taken in this work is verified based on the numerical calculations.
previous article Quantum decoherence of Dirac fields in non-inertial frames beyond the single-mode approximation
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Metadata
Title
Quantum computation in the decoherence-free subspaces with cavity QED
Authors
Yue-Yue Chen
Xun-Li Feng
C. H. Oh
Publication date
01-02-2014
Publisher
Springer US
Published in
Quantum Information Processing / Issue 2/2014
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-013-0671-0

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