Dec 9 – 11, 2019
IPhT, CEA/Saclay, France
Europe/Paris timezone

de Sitter vacua in String Theory are usually constructed using effective four-dimensional theories that appear to descend from string theory compactifications with fluxes and localized objects. However, in most constructions it is not clear whether the needed ingredients can be combined directly in String Theory without leading to inconsistencies.

A parallel line of inquiry, based on the properties of consistent effective field theories and known as the Swampland Paradigm, conjectures that these constructions will always be inconsistent. 

This workshop aims to bring together experts on top-down and bottom-up de Sitter constructions, discuss progress and controversies in this area and create the framework for new collaborations and developments.

Organizers: Iosif Bena, Mariana Graña, Ander Retolaza


Invited participants:

David Andriot
Johan Blåbäck
Andreas Braun
Giuseppe Dibitetto
Emilian Dudaș
Renata Kallosh
Manki Kim
Elias Kiritsis
Nicolas Kovensky
Severin Lüst
Luca Martucci
Jakob Moritz
Vasilis Niarchos
Francesco Nitti
Susha Parameswaran
Erik Plauschinn
Lisa Randall
Gary Shiu
Pablo Soler 
Radu Tătar
Bret Underwood
Thomas van Riet
Timm Wrase
Ivonne Zavala


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IPhT, CEA/Saclay, France
Amphitheater Claude Bloch