A note on the search for k elements via quantum walk

  • Authors:
  • Sebastian Dörn;Thomas Thierauf

  • Affiliations:
  • Carl Zeiss AG, 73447 Oberkochen, Germany;Fak. Elektronik und Informatik, HTW Aalen, 73430 Aalen, Germany

  • Venue:
  • Information Processing Letters
  • Year:
  • 2010

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Abstract

In this paper we use the quantum walk search scheme by Magniez et al. (2007) [13] to find k solutions of a search problem. We show that the quantum query complexity is at most of order klogk times the number of queries to find one solution.