Realizing Quantum Controlled Phase Flip through Cavity-QED

Details Realizing Quantum Controlled Phase Flip through Cavity-QED Realizing Quantum Controlled Phase Flip through Cavity-QED

2004-08-05

arxiv.org/abs/quant-ph/0408033v1

Physical Review A 70, 042314 (2004)

Physics

Quantum Physics

13 pages, 4 figures

Scientific paper

10.1103/PhysRevA.70.042314

We propose a scheme to realize quantum controlled phase flip (CPF) between two rare earth ions embedded in respective microsphere cavity via interacting with a single-photon pulse in sequence. The numerical simulations illuminate that the CPF gate between ions is robust and scalable with extremely high fidelity and low error rate. Our scheme is more applicable than other schemes presented before based on current laboratory cavity-QED technology, and it is possible to be used as an applied unit gate in future quantum computation and quantum communication.

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