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quant-ph2019★ 22 cited
Does violation of a Bell inequality always imply quantum advantage in a communication complexity problem?
Armin Tavakoli, Marek Żukowski, Časlav Brukner
Quantum correlations which violate a Bell inequality are presumed to power better-than-classical protocols for solving communication complexity problems (CCPs). How general is this…
quant-ph2019★ 4 cited
General mapping of multi-quit entanglement conditions to non-separability indicators for quantum optical fields
Junghee Ryu, Bianka Woloncewicz, Marcin Marciniak +2
We show that any multi-qudit entanglement witness leads to a non-separability indicator for quantum optical fields, which involves intensity correlations. We get, e.g., necessary a…