Embezzlement-based nonlocal game that cannot be played optimally with finite amount of entanglement

QuICS Seminar

Debbie Leung (University of Waterloo)
Wednesday, April 4 2018 at 11:00 am
CSS 3100A
We introduce a three-player nonlocal game, such that the optimal winning probability of 1 can only be achieved in the limit of strategies using arbitrarily high dimensional entangled states.  This game is explicit, and has very few classical questions and answers.  Our game is based on the coherent state exchange game introduced in arXiv:0804.4118, which in turns is based on embezzlement of entanglement due to van Dam and Hayden.  We discuss the main ideas behind each of these ingredients, and how they can be put together to obtain a quantitative tradeoff in the winning probability vs the dimension of the entangled state shared by the players.  

Joint work with Zhengfeng Ji and Thomas Vidick, arXiv:1802.04926 .