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News archive

Tuesday, May 9, 2017

New causal structures only found in the quantum world

Kevin Resch, Robert Spekkens, Katja Reid, and Jean-Phillipe MacLean

Last year, research from the Institute for Quantum Computing (IQC) at the University of Waterloo and the Perimeter Institute for Theoretical Physics (PI) showed that in the quantum world, certain kinds of correlations do imply causation. This line of research has now expanded to the question of whether there are types of causal structures that exist in the quantum world but not in the classical world of our everyday lives. 

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