Parallel Repetition for the GHZ Game: Exponential Decay

11/24/2022
by   Mark Braverman, et al.
0

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.

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