Title
Quantum Partial Search of a Database with Several Target Items
Abstract
We consider unstructured database separated into blocks of equal size. Blocks containing target items are called target blocks. Blocks without target items are called non-target blocks. We present a fast quantum algorithm, which finds one of the target blocks. The algorithm uses the same oracle, which the main Grover algorithm does. We study the simplest case, when each target block has the same number of target items. Our algorithm is based on Boyer, Brassard, Hoyer, and Tapp algorithm of searching database with several target items and on Grover---Radhakrishnan algorithm of partial search. We minimize the number of queries to the oracle. We analyze the algorithm for blocks of large size. In next publications we shall consider more general case when the number of target items is different in different target blocks.
Year
DOI
Venue
2007
10.1007/s11128-007-0056-3
Quantum Information Processing
Keywords
Field
DocType
database search,partial search,multiple target blocks,Grover search,quantum algorithm,optimization,03.67.-a,03.67.Lx
Quantum,Database search engine,Oracle,Quantum algorithm,Grover's algorithm,Database,Physics
Journal
Volume
Issue
ISSN
6
4
Quantum Information Processing, vol 6, Number 4, page 37, 2007
Citations 
PageRank 
References 
5
0.53
4
Authors
2
Name
Order
Citations
PageRank
Byung-Soo Choi1467.09
Vladimir E. Korepin2133.71