Simple scheme for two-qubit Grover search in cavity QED

Details Simple scheme for two-qubit Grover search in cavity QED Simple scheme for two-qubit Grover search in cavity QED

2005-07-14

arxiv.org/abs/quant-ph/0507129v1

Physics

Quantum Physics

manuscript 10 pages, 2 figures, to appear in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.72.034306

Following the proposal by F. Yamaguchi et al.[Phys. Rev. A 66, 010302 (R) (2002)], we present an alternative way to implement the two-qubit Grover search algorithm in cavity QED. Compared with F. Yamaguchi et al.'s proposal, with a strong resonant classical field added, our method is insensitive to both the cavity decay and thermal field, and doesn't require that the cavity remain in the vacuum state throughout the procedure. Moreover, the qubit definitions are the same for both atoms, which makes the experiment easier. The strictly numerical simulation shows that our proposal is good enough to demonstrate a two-qubit Grover's search with high fidelity.

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