Observers, wormholes and complex saddles in cosmology
→
Europe/Zurich
Bernoulli Center for Fundamental Studies, EPFL
Bernoulli Center for Fundamental Studies, EPFL
GA 3 34, Bâtiment GA, Station 5, 1015 Lausanne, Switzerland
,
Description
We will explore the following open questions in theoretical cosmology, related to the quantization of gravity:
- How does one describe gauge-invariant observables in quantum gravity that resemble measurements carried out by an observer residing in the spacetime (such as ourselves)?
- Should effects of topology change (spacetimes with wormholes) be considered? Which wormhole spacetimes contribute to physical observables in quantum gravity?
- Important contributions to observables can originate from “complexified” spacetimes. A key example is the Hartle-Hawking geometry which contributes to the wavefunction of the universe. Can we formulate a general principle for which complex saddles contribute, and which do not?
The goal of this workshop is to bring together a representative part of the research community responsible for recent progress on these questions, which spans several fields.
Some useful links
- How to get to the hotel (Google maps link)
- How to get to the Bernoulli Center (Google maps link)
- Workshop dinner venue: Domaine de la Crausaz (Chem. de la Creuse 9, 1091 Grandvaux)
Andreas Blommaert Oliver Janssen
Participants
Adam Levine
Alejandro Vilar Lopez
Alessandro Fumagalli
Altay Etkin
Andreas Blommaert
Antony Speranza
Bahman Najian
Beatrix Muehlmann
Chang-Han Chen
David Kolchmeyer
Diego Liska
Dionysios Anninos
Eyoab Bahiru
Fabio Ori
Jacopo Papalini
Joel Karlsson
Jonah Kudler-Flam
Kamran Salehi Vaziri
Katarina Trailović
Kristan Jensen
Mattia Varrone
Mehrdad Mirbabayi
Mikhail Shaposhnikov
Oliver Janssen
Orr Sela
Pietro Benetti Genolini
Pratik Rath
Priyadarshi Paul
Ricardo Schiappa
Ruben Monten
Samuel Brian
Shota Komatsu
Tarek Anous
Thomas Hertog
Tim Schuhmann
Victor Godet
Victor Gorbenko
Vineeth Krishna Talasila
Yiming Chen
zhenbin yang
- +12