TY - JOUR
T1 - Bell Inequalities with No Quantum Violation and Unextendable Product Bases
JF - Phys. Rev. Lett.
Y1 - 2011
A1 - Remigiusz Augusiak
A1 - Julia Stasińska
A1 - Hadley, Christopher
A1 - Korbicz, Jarosław K.
A1 - Lewenstein, Maciej
A1 - Acín, Antonio
AB - The strength of classical correlations is subject to certain constraints, commonly known as Bell inequalities. Violation of these inequalities is the manifestation of nonlocality—displayed, in particular, by quantum mechanics, meaning that quantum mechanics can outperform classical physics at tasks associated with such Bell inequalities. Interestingly, however, there exist situations in which this is not the case. We associate an intriguing class of bound entangled states, constructed from unextendable product bases with a wide family of tasks, for which (i) quantum correlations do not outperform the classical ones but (ii) there exist supraquantum nonsignaling correlations that do provide an advantage.
PB - American Physical Society
VL - 107
ER -