Indefinite Causal Structure

Conference Date: 
Monday, December 9, 2019 (All day) to Friday, December 13, 2019 (All day)
Scientific Areas: 
Quantum Foundations
Quantum Gravity
Quantum Information


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.

To register for this event, please click here.

Sponsorship for this event has been provided by:


  • Caslav Brukner, University of Vienna
  • Esteban Castro-Ruiz, University of Vienna
  • Giulio Chiribella, University of Oxford
  • Fabio Costa, University of Queensland
  • John Donoghue, University of Massachusetts
  • Doreen Fraser, University of Waterloo
  • Flaminia Giacomini, University of Vienna
  • Christina Giarmatzi, University of Queensland
  • Aleks Kissinger, Radboud University Nijmegen
  • Gavin Morley, University of Warwick
  • Ogmyan Oreshkov, Universite Libre de Bruxelles
  • Jacques Pienaar, University of Vienna
  • Tim Ralph, University of Queensland
  • Katja Reid, University of Innsbruck
  • Alexander Smith, Dartmouth College


  • Lin-Qing Chen, Okinawa Institute of Science and Technology
  • Robin Lorenz, University of Oxford
  • Herve Moal, Loma Management

Scientific Organizers:

  • Lucien Hardy, Perimeter Institute
  • Robert Mann, University of Waterloo