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 matterofthefact 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


10 years of the quantum SWITCH: state of the art and new perspectives
Giulio Chiribella The University of Hong Kong (HKU)

Cyclic quantum causal models and violations of causal inequalities
Ognyan Oreshkov Université Libre de Bruxelles (ULB)

TBA
Laura Henderson University of Waterloo

Composing causal orderings
Aleks Kissinger University of Oxford

Quantum principle of relativity
Andrzej Dragan University of Warsaw

Quantum mechanics and the covariance of physical laws in quantum reference frames
Flaminia Giacomini Perimeter Institute for Theoretical Physics

What happens when we quantize time?
Alexander Smith Dartmouth College



TBA
Christina Giarmatzi University of Queensland (UQ)

Unscrambling the Omelette of Causation and Inference in Operational and Ontological Theories
David Schmid Perimeter Institute for Theoretical Physics