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Published June 2018 | Submitted + Published
Book Section - Chapter Open

Two-Player Entangled Games are NP-Hard

Abstract

We show that it is NP-hard to approximate, to within an additive constant, the maximum success probability of players sharing quantum entanglement in a two-player game with classical questions of logarithmic length and classical answers of constant length. As a corollary, the inclusion NEXP subseteq MIP^*, first shown by Ito and Vidick (FOCS'12) with three provers, holds with two provers only. The proof is based on a simpler, improved analysis of the low-degree test of Raz and Safra (STOC'97) against two entangled provers.

Additional Information

© Anand Natarajan and Thomas Vidick; licensed under Creative Commons License CC-BY. Supported by NSF CAREER Grant CCF-1452616. Supported by NSF CAREER Grant CCF-1553477, AFOSR YIP award number FA9550-16-1-0495, and the IQIM, an NSF Physics Frontiers Center (NSF Grant PHY-1125565) with support of the Gordon and Betty Moore Foundation (GBMF-12500028).

Attached Files

Published - LIPIcs-CCC-2018-20.pdf

Submitted - 1710.03062.pdf

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