Parallel Repetition for the GHZ Game: Exponential Decay

11/24/2022

∙

by   Mark Braverman, et al.

∙

0

∙

share

We show that the value of the n-fold repeated GHZ game is at most 2^-Ω(n), improving upon the polynomial bound established by Holmgren and Raz. Our result is established via a reduction to approximate subgroup type questions from additive combinatorics.