User:Andrew Helwer/sandbox

=CHSH game=

In quantum information, the CHSH game is a simple nonlocal game demonstrating quantum nonlocality and the inability of local hidden variables to reproduce all the predictions of quantum mechanics. It involves two players, Alice and Bob, who cannot communicate; they are each given independent random bits, then each choose an output bit with the goal of making true a logical formula. With purely classical strategies, Alice and Bob can win the game at most 75% of the time. However, strategies using entanglement succeed with probability 85%, a CHSH inequality violation.

History
Although the CHSH inequality and its associated Bell test experiment was first defined in 1969 by John Clauser, Michael Horne, Abner Shimony, and Richard Holt, it wasn't until