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Stringlandscape SIGNED

Deconstructing the string landscape

Total Cost €


EC-Contrib. €






Project "Stringlandscape" data sheet

The following table provides information about the project.


Organization address
address: RUE LEBLANC 25
city: PARIS 15
postcode: 75015

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 1˙669˙465 €
 EC max contribution 1˙669˙465 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-COG
 Funding Scheme ERC-COG
 Starting year 2018
 Duration (year-month-day) from 2018-09-01   to  2023-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Despite its uniqueness, string theory has a “landscape” of low-energy solutions with very different observable physics. These solutions are usually found using low-energy effective theories which, in order to satisfy all the experimental constraints, require a number of exotic ingredients whose string theory origin is unclear. Thus, finding a solution within the effective theory compatible with experiments is far from the same as showing that such a solution is stable in string theory, to say nothing of whether it even exist. Without a string realization, there is neither a known ultraviolet completion of the effective action, nor any guarantee of its existence or consistency. The primary objective of this proposal is to deconstruct the string theory landscape, and determine what parts of it can be promoted to full-fledged string theory solutions, thus resolving the question of their consistency, and what parts are inconsistent. If the outcome of the project is that most of the phenomenologically interesting models are consistent, the landscape paradigm will be put on solid ground. Proving that most models are inconsistent would shatter it, weakening the case for a multiverse explanation of our universe, while restoring the quest for predictability in string theory. The most drastic possible outcome would be to show that none of the existing models survive consistency checks. Such a verdict would force us to search for more inventive alternatives, such as going away from the realm of geometry, and so this project will also pioneer the construction of a “non-geometric landscape”.


year authors and title journal last update
List of publications.
2020 Quentin Bonnefoy, Emilian Dudas, Severin Lust
Weak gravity (and other conjectures) with broken supersymmetry
published pages: , ISSN: , DOI:
Proceedings of Science 2020-04-15
2019 Quentin Bonnefoy, Emilian Dudas, Severin Lüst
On the weak gravity conjecture in string theory with broken supersymmetry
published pages: 114738, ISSN: 0550-3213, DOI: 10.1016/j.nuclphysb.2019.114738
Nuclear Physics B 947 2020-04-15
2019 Lilian Chabrol
Geometry of ℝ+ × E3(3) exceptional field theory and F-theory
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP08(2019)073
Journal of High Energy Physics 2019/8 2020-04-01
2019 Iosif Bena, Emilian Dudas, Mariana Graña, Severin Lüst
Uplifting Runaways
published pages: 1800100, ISSN: 0015-8208, DOI: 10.1002/prop.201800100
Fortschritte der Physik 67/1-2 2020-04-01
2019 Iosif Bena, Mariana Graña, Nicolas Kovensky, Ander Retolaza
Kähler moduli stabilization from ten dimensions
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP10(2019)200
Journal of High Energy Physics 2019/10 2020-04-01

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