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Quantum Partial Search of a Database with Several Target Items

Quantum Physics 2007-06-06 v2

Abstract

We consider a database separated into blocks. Blocks containing target items are called target blocks. Blocks without target items are called non-target blocks. We consider a case, when each target block has the same number of target items. We present a fast quantum algorithm, which finds one of the target blocks. Our algorithm is based on Grover-Radhakrishnan algorithm of partial search. We minimize the number of queries to the oracle.

Keywords

Cite

@article{arxiv.quant-ph/0608106,
  title  = {Quantum Partial Search of a Database with Several Target Items},
  author = {Byung-Soo Choi and Vladimir Korepin},
  journal= {arXiv preprint arXiv:quant-ph/0608106},
  year   = {2007}
}

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13 pages