Phys. Rev. A 63, 052303 (2001) [3 pages]Elaboration of the Ahn-Weinacht-Bucksbaum scheme for information storage or retrieval through a quantum phase with a single operationReceived 5 September 2000; published 13 April 2001 We present a scheme for information storage or retrieval through a quantum phase with a single operation, which generalizes the Ahn-Weinacht-Bucksbaum (AWB) scheme proposed and demonstrated in a recent experiment on N-state Rydberg atoms by Ahn, Weinacht, and Bucksbaum [Science 287, 463 (2000)]. Our scheme elaborates the AWB scheme through removing its original constraint on the smallness of the product of time and atom-light interactions by exactly evaluating the involved unitary transformations, and it is proved to have several pronounced advantages over the original one. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.052303
DOI:
10.1103/PhysRevA.63.052303
PACS:
03.67.-a, 03.65.-w, 89.70.+c
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