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- Title
Quantum computation in the decoherence-free subspaces with cavity QED.
- Authors
Chen, Yue-Yue; Feng, Xun-Li; Oh, C.
- 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.
- Subjects
QUANTUM computing; DECOHERENCE (Quantum mechanics); SUBSPACES (Mathematics); QUANTUM electrodynamics; QUANTUM entanglement; NUMERICAL analysis
- Publication
Quantum Information Processing, 2014, Vol 13, Issue 2, p547
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-013-0671-0