Monday, May 14, 2012

1107.2908 (Indranil Chakrabarty et al.)

CTC assisted PR box type correlation can lead to signaling    [PDF]

Indranil Chakrabarty, Tanumoy Pramanik, Arun K Pati, Pankaj Agrawal
It is known that there exist non-local correlations that respect no-signaling criterion, but violate Bell-type inequalities more than quantum-mechanical correlations. Such super quantum correlations were introduced as the Popescu-Rohrlich (PR) box. We consider such non-local boxes with two/three inputs and two/three outputs. We show that these super quantum correlations can lead to signaling when at least one of the input bit has access to a word line along a closed time-like curve.
View original: http://arxiv.org/abs/1107.2908

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