There has been a surge of interest in indefinite causal structure the idea that cause and effect can no longer be sharply distinguished. Motivated both by experimentation with quantum switches and quantum gravity there can be situations in which there is no matter-of-the-fact as to what the causal structure of spacetime is. This meeting will bring together workers in Quantum Foundations and Quantum Gravity in both theoretical experimental physics to discuss the state of the art of current research and set new directions for this emerging subdiscipline.
Format results
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TBA
Fabio Costa University of Queensland
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Causality in Qbism
Jacques Pienaar University of Massachusetts Boston
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TBA
Linqing Chen Université Libre de Bruxelles
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Indefinite causal order without post-selection
Katja Ried TNG Technology Consulting
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TBA
Robert Mann University of Waterloo
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Time reference frames and gravitating quantum clocks
Esteban Castro Ruiz Université Libre de Bruxelles (ULB)
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Quantum Models of CTCs and a space-based experiment
Tim Ralph University of Queensland
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TBA
Lucien Hardy Perimeter Institute for Theoretical Physics
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Two views of relative locality
Lee Smolin Perimeter Institute for Theoretical Physics
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Dueling Arrows of Causality, Causal Uncertainty and Quadratic Gravity
John Donoghue University of Massachusetts Amherst