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quant-ph2024
Subsystem decompositions of quantum evolutions and transformations between causal perspectives
Julian Wechs, Ognyan Oreshkov
One can theoretically conceive of processes where the causal order between quantum operations is no longer well-defined. Certain such causally indefinite processes have an operatio…
quant-ph2024
Generalizing Bell nonlocality without global causal assumptions
Ravi Kunjwal, Ognyan Oreshkov
Bell scenarios are multipartite scenarios that exclude any communication between parties. This constraint leads to a strict hierarchy of correlation sets in such scenarios, namely,…