Journal
QUANTUM INFORMATION PROCESSING
Volume 12, Issue 1, Pages 493-504Publisher
SPRINGER
DOI: 10.1007/s11128-012-0393-8
Keywords
Quantum entanglement; Virtual excitation; Quantum Zeno dynamics
Funding
- State Basic Key Research Program of China [2012CB921601]
- China National Funds for Distinguished Young Scientists [11125418]
- National Natural Science Foundation of China [10974125, 61121064, 61078051]
- Educational Committee of Fujian Province, China [JA09041]
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A novel proposal for the robust generation of atomic entanglement in two coupled cavities is proposed, for the first time via virtually excitation and quantum Zeno dynamics. Throughout the procedure, both cavity modes and atoms are only virtually excited, making the system robust against atomic and photonic decays. The influence of the atom-photon decay and the imperfection of the initial atom state on the prepared-state fidelity is also analyzed, which shows that the present scheme is feasible based on current technologies. At last, the proposal is generalized for the preparation of two atomic ensembles.
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