Exact universality from any entangling gate without inverses

  • Authors:
  • Aram W. Harrow

  • Affiliations:
  • Department of Mathematics, University of Bristol, Bristol, U.K

  • Venue:
  • Quantum Information & Computation
  • Year:
  • 2009

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Abstract

This note proves that arbitrary local gates together with any entangling bipartite gate V are universal. Previously this was known only when access to both V and V was given, or when approximate universality was demanded.