General SU(2) formulation for quantum searching with certainty

Jin Yuan Hsieh, Che Ming Li

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


An algorithm for quantum search with arbitrary unitary transformations and an arbitrary initial state was presented. Using the SU(2) representation, the matching condition relating the phase rotations in the algorithm to search a marked state with certainty was derived. A formula for evaluating the required number of iterations for the search, and the final state after the search was presented.

Original languageEnglish
Article number052322
Pages (from-to)523221-523224
Number of pages4
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5
Publication statusPublished - 2002 May

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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