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Statut |
Confirmé |
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Série |
LPTENS-HE |
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Domaines |
hep-th |
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Date |
Mardi 24 Mai 2022 |
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Heure |
14:30 |
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Institut |
LPENS |
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Salle |
L361 (24 rue Lhomond) AND zoom |
|
Nom de l'orateur |
Lüst |
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Prenom de l'orateur |
Severin |
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Addresse email de l'orateur |
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Institution de l'orateur |
Harvard University |
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Titre |
The Tadpole Problem |
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Résumé |
I will discuss string theory compactifications where a large number of moduli is
stabilized by fluxes. I will first present a conjecture which rules out the
stabilization of all complex-structure moduli in F-theory at a generic point in
moduli space by fluxes that satisfy the tadpole cancellation condition. Evidence
for this conjecture comes from studying K3xK3 compactifications using evolutionary
algorithms.
Subsequently, I will discuss obstructions on flux compactifications coming from
AdS/CFT holography. Here, I will argue that it is not possible to obtain KKLT-like
AdS vacua with very small cosmological constants by putting a bound on the central
charge of the dual theory. These results have important consequences for the
construction of de Sitter vacua in string theory. |
|
Numéro de preprint arXiv |
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Commentaires |
Hybrid seminar. Zoom link:
https://us06web.zoom.us/j/86271145836? pwd=MjhXUWRJRkpZdkRkL08xcTVDVjFHUT09
Meeting ID: 862 7114 5836
Passcode: 565571 |
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Fichiers attachés |
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