Simple Algorithm for Partial Quantum Search

Simple Algorithm for Partial Quantum Search Quite often in database search, we only need to extract portion of the information about the satisfying item. We consider this problem in the following form: the database of N items is separated into K blocks of size b = N / K elements each and an algorithm has just to find the block containing the item of interest. The queries are exactly the same as in the standard database search problem. We present a quantum algorithm for this problem of partial search that takes about 0.34 $$\sqrt{b}$$ fewer iterations than the quantum search algorithm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Simple Algorithm for Partial Quantum Search

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Publisher
Springer US
Copyright
Copyright © 2006 by Springer Science+Business Media, Inc.
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-005-0004-z
Publisher site
See Article on Publisher Site

Abstract

Quite often in database search, we only need to extract portion of the information about the satisfying item. We consider this problem in the following form: the database of N items is separated into K blocks of size b = N / K elements each and an algorithm has just to find the block containing the item of interest. The queries are exactly the same as in the standard database search problem. We present a quantum algorithm for this problem of partial search that takes about 0.34 $$\sqrt{b}$$ fewer iterations than the quantum search algorithm.

Journal

Quantum Information ProcessingSpringer Journals

Published: Mar 17, 2006

References

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