Quantum Inflation: A General Approach to Quantum Causal Compatibility

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,...

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Autores principales:	Elie Wolfe, Alejandro Pozas-Kerstjens, Matan Grinberg, Denis Rosset, Antonio Acín, Miguel Navascués
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/b9434ca123374b7ba8e004e8a935f9f3
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spelling	oai:doaj.org-article:b9434ca123374b7ba8e004e8a935f9f32021-12-02T16:51:52ZQuantum Inflation: A General Approach to Quantum Causal Compatibility10.1103/PhysRevX.11.0210432160-3308https://doaj.org/article/b9434ca123374b7ba8e004e8a935f9f32021-05-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.021043http://doi.org/10.1103/PhysRevX.11.021043https://doaj.org/toc/2160-3308Causality 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 correlations. We demonstrate the power of the technique by reproducing known results and solving open problems for some paradigmatic examples of causal networks. Our results may find applications in many fields: from the characterization of correlations in quantum networks to the study of quantum effects in thermodynamic and biological processes.Elie WolfeAlejandro Pozas-KerstjensMatan GrinbergDenis RossetAntonio AcínMiguel NavascuésAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 2, p 021043 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Elie Wolfe Alejandro Pozas-Kerstjens Matan Grinberg Denis Rosset Antonio Acín Miguel Navascués Quantum Inflation: A General Approach to Quantum Causal Compatibility
description	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 correlations. We demonstrate the power of the technique by reproducing known results and solving open problems for some paradigmatic examples of causal networks. Our results may find applications in many fields: from the characterization of correlations in quantum networks to the study of quantum effects in thermodynamic and biological processes.
format	article
author	Elie Wolfe Alejandro Pozas-Kerstjens Matan Grinberg Denis Rosset Antonio Acín Miguel Navascués
author_facet	Elie Wolfe Alejandro Pozas-Kerstjens Matan Grinberg Denis Rosset Antonio Acín Miguel Navascués
author_sort	Elie Wolfe
title	Quantum Inflation: A General Approach to Quantum Causal Compatibility
title_short	Quantum Inflation: A General Approach to Quantum Causal Compatibility
title_full	Quantum Inflation: A General Approach to Quantum Causal Compatibility
title_fullStr	Quantum Inflation: A General Approach to Quantum Causal Compatibility
title_full_unstemmed	Quantum Inflation: A General Approach to Quantum Causal Compatibility
title_sort	quantum inflation: a general approach to quantum causal compatibility
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/b9434ca123374b7ba8e004e8a935f9f3
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Quantum Inflation: A General Approach to Quantum Causal Compatibility

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