English

A parallel repetition theorem for entangled two-player one-round games under product distributions

Quantum Physics 2014-06-16 v2 Computational Complexity

Abstract

We show a parallel repetition theorem for the entangled value ω(G)\omega^*(G) of any two-player one-round game GG where the questions (x,y)X×Y(x,y) \in \mathcal{X}\times\mathcal{Y} to Alice and Bob are drawn from a product distribution on X×Y\mathcal{X}\times\mathcal{Y}. We show that for the kk-fold product GkG^k of the game GG (which represents the game GG played in parallel kk times independently), ω(Gk)=(1(1ω(G))3)Ω(klog(AB)) \omega^*(G^k) =\left(1-(1-\omega^*(G))^3\right)^{\Omega\left(\frac{k}{\log(|\mathcal{A}| \cdot |\mathcal{B}|)}\right)} , where A\mathcal{A} and B\mathcal{B} represent the sets from which the answers of Alice and Bob are drawn.

Keywords

Cite

@article{arxiv.1311.6309,
  title  = {A parallel repetition theorem for entangled two-player one-round games under product distributions},
  author = {Rahul Jain and Attila Pereszlényi and Penghui Yao},
  journal= {arXiv preprint arXiv:1311.6309},
  year   = {2014}
}

Comments

14 pages. Accepted by CCC 2014, camera-ready version