Advantage of Quantum Strategies in Random Symmetric XOR Games

  • Andris Ambainis
  • Jānis Iraids
  • Dmitry Kravchenko
  • Madars Virza
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7721)


Non-local games are known as a simple but useful model which is widely used for displaying nonlocal properties of quantum mechanics. In this paper we concentrate on a simple subset of non-local games: multiplayer XOR games with 1-bit inputs and 1-bit outputs which are symmetric w.r.t. permutations of players.

We look at random instances of non-local games from this class. We prove a tight bound for the expected performance on the classical strategies for a random non-local game and provide numerical evidence that quantum strategies achieve better results.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Andris Ambainis
    • 1
  • Jānis Iraids
    • 1
  • Dmitry Kravchenko
    • 1
  • Madars Virza
    • 1
  1. 1.Faculty of ComputingUniversity of LatviaLatvia

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