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Phys. Rev. A 66, 010302(R) (2002) [4 pages]

Quantum search with two-atom collisions in cavity QED

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F. Yamaguchi1, P. Milman2, M. Brune2, J. M. Raimond2, and S. Haroche2,3
1Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305
2Laboratoire Kastler Brossel, Département de Physique de l’Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France
3Collège de France, 11 place Marcelin-Berthelot, F-75005 Paris, France

Received 29 March 2002; published 24 July 2002

We propose a scheme to implement the two-qubit Grover’s quantum search algorithm using cavity quantum electrodynamics. In this scheme long-lived electronic states in circular Rydberg atoms are used as quantum bits (qubits). The atoms interact with the electromagnetic field of a nonresonant cavity. The quantum gate dynamics is provided by a cavity-assisted collision. We present the detailed procedure and analyze the experimental feasibility.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.010302
DOI:
10.1103/PhysRevA.66.010302
PACS:
03.67.-a, 03.65.-w, 42.50.-p
 
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