Regular Article: On Quantum Algorithms for Noncommutative Hidden Subgroups

  • Authors:
  • Mark Ettinger;Peter Høyer

  • Affiliations:
  • Los Alamos National Laboratory, Mail Stop B-230, Los Alamos, New Mexico, 87545, f1ettinger@lanl.govf1;BRICS11BRICSBasic Research in Computer Science, Centre of the Danish National Research Foundation. and Department of Computer Science, University of Aarhus, Ny Munkegade, Bldg. 540, DK-8000, Aarhu ...

  • Venue:
  • Advances in Applied Mathematics
  • Year:
  • 2000

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Abstract

Quantum algorithms for factoring and finding discrete logarithms have previously been generalized to finding hidden subgroups of finite Abelian groups. This paper explores the possibility of extending this general viewpoint to finding hidden subgroups of noncommutative groups. We present a quantum algorithm for the special case of dihedral groups which determines the hidden subgroup in a linear number of calls to the input function. We also explore the difficulties of developing an algorithm to process the data to explicitly calculate a generating set for the subgroup. A general framework for the noncommutative hidden subgroup problem is discussed and we indicate future research directions.