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On the power of non-local boxes
2006
Theoretical Computer Science
A non-local box is a virtual device that has the following property: given that Alice inputs a bit at her end of the device and that Bob does likewise, it produces two bits, one at Alice's end and one at Bob's end, such that the XOR of the outputs is equal to the AND of the inputs. This box, inspired from the CHSH inequality, was first proposed by Popescu and Rohrlich to examine the question: given that a maximally entangled pair of qubits is non-local, why is it not maximally non-local? We
doi:10.1016/j.tcs.2005.08.035
fatcat:gbnywqdo7bcwfdbfegixsu5qpq