Bounding the Sets of Classical and Quantum Correlations in Networks
Bounding the Sets of Classical and Quantum Correlations in Networks
We present a method that allows the study of classical and quantum correlations in networks with causally independent parties, such as the scenario underlying entanglement swapping. By imposing relaxations of factorization constraints in a form compatible with semidefinite programing, it enables the use of the NavascuĂ©s-Pironio-AcĂn hierarchy in complex quantum …