Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH scholarly article en Arvind, Vikraman; Mukhopadhyay, Partha http://www.dagstuhl.de/lipics License
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URN: urn:nbn:de:0030-drops-18014
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Quantum Query Complexity of Multilinear Identity Testing

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Abstract

Motivated by the quantum algorithm for testing commutativity of black-box groups (Magniez and Nayak, 2007), we study the following problem: Given a black-box finite ring by an additive generating set and a multilinear polynomial over that ring, also accessed as a black-box function (we allow the indeterminates of the polynomial to be commuting or noncommuting), we study the problem of testing if the polynomial is an \emph{identity} for the given ring. We give a quantum algorithm with query complexity sub-linear in the number of generators for the ring, when the number of indeterminates of the input polynomial is small (ideally a constant). Towards a lower bound, we also show a reduction from a version of the collision problem (which is well studied in quantum computation) to a variant of this problem.

BibTeX - Entry

@InProceedings{arvind_et_al:LIPIcs:2009:1801,
  author =	{Vikraman Arvind and Partha Mukhopadhyay},
  title =	{{Quantum Query Complexity of Multilinear Identity Testing}},
  booktitle =	{26th International Symposium on Theoretical Aspects of Computer Science},
  pages =	{87--98},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-09-5},
  ISSN =	{1868-8969},
  year =	{2009},
  volume =	{3},
  editor =	{Susanne Albers and Jean-Yves Marion},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2009/1801},
  URN =		{urn:nbn:de:0030-drops-18014},
  doi =		{http://dx.doi.org/10.4230/LIPIcs.STACS.2009.1801},
  annote =	{Keywords: Quantum algorithm, Identity testing, Query complexity, Multilinear polynomials}
}

Keywords: Quantum algorithm, Identity testing, Query complexity, Multilinear polynomials
Seminar: 26th International Symposium on Theoretical Aspects of Computer Science
Issue date: 2009
Date of publication: 2009


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