Observers and Causality in Quantum Gravity, Bratislava, Slovakia

More info:  external link
Date:  2026-04-21  -  2026-04-24

Location:  Bratislava, Slovakia

The COST Actions RQI and BridgeQG are jointly organizing the conference
“Observers and causality in quantum gravity” in Bratislava, Slovakia, which is going to happen on 21st – 24th April 2026.

Submissions for contributed talks and posters are open now!
The link for subscription is provided on the conference website.

This conference aims to bring together disparate communities in quantum gravity and quantum information to discuss common foundational concepts, which are defined and employed in different ways across fields. Central topics will include the notions of observers and causality, but the scope extends to related ideas such as measurements, quantum reference frames, quantum groups, and more.

We will address questions such as:
– What structures are required to define observers in quantum gravity?
– What is the relation among the notions of observers, observables, and measurements?
– Which features of causal structure are genuinely new in quantum gravity compared to classical spacetime?
– Which other fundamental concepts should be examined to help build a shared conceptual language?

Confirmed invited speakers:

Charis Anastopoulos (U. of Patras)
Caslav Brukner (IQOQI Vienna)
Esteban Castro-Ruiz (IQOQI Vienna)
Kristina Giesel (Erlangen – Nuremberg U.)
Giulia Gubitosi (U. Napoli Federico II)
Eleni-Alexandra Kontou (King’s College London)
David Kubiznak (Charles U.)
Fedele Lizzi (U. Napoli Federico II and INFN)
Daniele Oriti (U. Complutense de Madrid)
T. Rick Perche (Nordita and Stockholm U.)
Kasia Rejner (U. of York)
Renato Renner (ETH Zurich)
V. Vilasini (U. of Grenoble Alpes)
Nelson Yokomizo (U. Federal de Minas Gerais)
Ying Zhao (MIT) [online]

Programme Committee:
Natalia Salome’ Moller (Slovak Academy of Sciences – SAV)
Lin-Qing Chen (IQOQI Vienna)
Thomas Galley (IQOQI Vienna)
Martin Krssak (Comenius U. in Bratislava)
Fabio Costa (Nordita and Stockholm U.)
Giulia Gubitosi (U. Napoli Federico II)
Charis Anastopoulous (U. of Patras)

Organizing committee:
Natalia Salome’ Moller (SAV)
Saadat Salman Shariff (SAV)
Radka Hovorkova (SAV)
Martin Krssak (Comenius U. in Bratislava)
Mario Ziman (SAV)