Classical interaction cannot replace a quantum message

  • Authors:
  • Dmitry Gavinsky

  • Affiliations:
  • NEC Laboratories America, Inc., Princeton, NJ, USA

  • Venue:
  • STOC '08 Proceedings of the fortieth annual ACM symposium on Theory of computing
  • Year:
  • 2008

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Abstract

We demonstrate a two-player communication problem that can be solved in the one-way quantum model by a 0-error protocol of cost O(log n) but requires exponentially more communication in the classical interactive (bounded error) model.