Quantum Testers for Hidden Group Properties

  • Authors:
  • Katalin Friedl;Miklos Santha;Frédéric Magniez;Pranab Sen

  • Affiliations:
  • Dept. of Comp. Sci., Budapest Univ. of Technology and Economics, H-1521 Budapest, Hungary. friedl@cs.bme.hu;LRI, Univ Paris-Sud, CNRS, F-91405 Orsay, France, and CQT, Nat. Univ. of Singapore. santha@lri.fr;(Correspd. LRI, Univ Paris-Sud, CNRS, F-91405 Orsay, France) LRI, Univ Paris-Sud, CNRS, F-91405 Orsay, France. magniez@lri.fr;School of Technology and Comp. Sci., Tata Institute of Fundamental Research, Mumbai, India. pgdsen@tcs.tifr.res.in

  • Venue:
  • Fundamenta Informaticae - Machines, Computations and Universality, Part II
  • Year:
  • 2009

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Abstract

We construct efficient or query efficient quantum property testers for two existential group properties which have exponential query complexity both for their decision problem in the quantum and for their testing problem in the classical model of computing. These are periodicity in groups and the common coset range property of two functions having identical ranges within each coset of some normal subgroup. Our periodicity tester is efficient in Abelian groups and generalizes, in several aspects, previous periodicity testers. This is achieved by introducing a technique refining the majority correction process widely used for proving robustness of algebraic properties. The periodicity tester in non-Abelian groups and the common coset range tester are query efficient.