Information Storage and Retrieval Through Quantum Phase

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Science  21 Jan 2000:
Vol. 287, Issue 5452, pp. 463-465
DOI: 10.1126/science.287.5452.463

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Information was stored as quantum phase in an N-state Rydberg atom data register. One or more flipped states stored in an eight-state atomic wave packet could be retrieved in a single operation, in agreement with a recent proposal by Grover.

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