Quantum Search on Structured Problems

  • Authors:
  • Lov K. Grover

  • Affiliations:
  • -

  • Venue:
  • QCQC '98 Selected papers from the First NASA International Conference on Quantum Computing and Quantum Communications
  • Year:
  • 1998

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Abstract

This paper shows how a basic property of unitary transformations can be used for meaningful computations. This approach immediately leads to search-type applications, where it improves the number of steps by a square-root - a simple minded search that takes N steps, can be improved to approximately √N steps. The quantum search algorithm is one of several immediate consequences of this framework. Several novel search-related applications are presented.