Quantum Inflation: A General Approach to Quantum Causal Compatibility

  title={Quantum Inflation: A General Approach to Quantum Causal Compatibility},
  author={Elie Wolfe and Alejandro Pozas-Kerstjens and Matan Grinberg and Denis Rosset and Antonio Ac{\'i}n and Miguel Navascu{\'e}s},
Causality is a seminal concept in science: any research discipline, from sociology and medicine to physics and chemistry, aims at understanding the causes that could explain the correlations observed among some measured variables. While several methods exist to characterize classical causal models, no general construction is known for the quantum case. In this work we present quantum inflation, a systematic technique to falsify if a given quantum causal model is compatible with some observed… 

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