Discovering Quantum Causal Models

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Shrapnel, Sally
preprint description
I present an Interventionist account of quantum causation, based on the process matrix formalism of Oreshkov, Costa and Brukner (2012), and Costa (2015). The formalism generalises the classical methods of Pearl (2000), and allows for the discovery of quantum causal structure. I show that classical causal structure emerges in certain situations as a special case. I emphasise the crucial role causal discovery plays, in order to distinguish this approach from other recent alternatives.