Quantum causal modelling

Costa, Fabio and Shrapnel, Sally (2016) Quantum causal modelling. New Journal of Physics, 18 6: . doi:10.1088/1367-2630/18/6/063032


Author Costa, Fabio
Shrapnel, Sally
Title Quantum causal modelling
Journal name New Journal of Physics   Check publisher's open access policy
ISSN 1367-2630
Publication date 2016-06-24
Year available 2016
Sub-type Article (original research)
DOI 10.1088/1367-2630/18/6/063032
Open Access Status DOI
Volume 18
Issue 6
Total pages 21
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Collection year 2017
Language eng
Abstract Causal modelling provides a powerful set of tools for identifying causal structure from observed correlations. It is well known that such techniques fail for quantum systems, unless one introduces 'spooky' hidden mechanisms. Whether one can produce a genuinely quantum framework in order to discover causal structure remains an open question. Here we introduce a new framework for quantum causal modelling that allows for the discovery of causal structure. We define quantum analogues for core features of classical causal modelling techniques, including the causal Markov condition and faithfulness. Based on the process matrix formalism, this framework naturally extends to generalised structures with indefinite causal order.
Keyword Causal modeling
Foundations of quantum mechanics
Markovianity
Quantum causal networks
Quantum causality
Quantum information
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
HERDC Pre-Audit
School of Historical and Philosophical Inquiry
 
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