LNCS 2748 Multi party Pseudo Telepathy 1st Edition by Gilles Brassard, Anne Broadbent, Alain Tapp ISBN 3540450785 9783540450788

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Product details:

ISBN 10: 3540450785

ISBN 13: 9783540450788

Author:  Gilles Brassard, Anne Broadbent, Alain Tapp 

LNCS 2748 – Multi-party Pseudo-Telepathy 1st Edition: Quantum entanglement, perhaps the most non-classical manifestation of quantum information theory, cannot be used to transmit information between remote parties. Yet, it can be used to reducethe amount of communication required to process a variety of distributedcomputational tasks. We speak of pseudo-telepathy when quantum entanglementserves to eliminate the classical need to communicate. In earlier examples of pseudo-telepathy, classical protocols could succeedwith high probability unless the inputs were very large. Here we present a simple multi-party distributed problem for which the inputsand outputsconsist of a single bit per player, and we present a perfectquantum protocolfor it. We prove that no classical protocol can succeedwith a probability that differs from 1/2 by more than a fraction that is exponentially small in the number of players. This could be used to circumvent the detection loophole in experimental tests of nonlocality.

 

LNCS 2748 – Multi-party Pseudo-Telepathy 1st Edition Table of contents:

1 Introduction

2 A Simple Game and its Perfect Quantum Protocol

3 Optimal Proportion for Deterministic Protocols

4 Optimal Probability for Classical Protocols

5 Imperfect Apparatus

6 Conclusions and Open Problems

 

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