String tension between de Sitter vacua and curvature corrections
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Higher-derivative corrections to cosmological effective actions in string theory are largely constrained by T-duality, but have been computed hitherto only to the first few orders in the string scale α′. The functional renormalization group, in conjunction with the strong constraints imposed by T-duality, allows us to derive cosmological effective actions to all orders in α′ while avoiding "truncations"of the theory space. We show that the resulting higher-derivative α′-corrections forbid the existence of de Sitter vacua, at least in regimes where string-loop corrections can be neglected. Our findings thus support the no-de Sitter swampland conjecture in the presence of all-order effects in α′.
Originalsprog | Engelsk |
---|---|
Artikelnummer | L121901 |
Tidsskrift | Physical Review D |
Vol/bind | 104 |
Udgave nummer | 12 |
ISSN | 2470-0010 |
DOI | |
Status | Udgivet - 15 dec. 2021 |
Bibliografisk note
Publisher Copyright:
© 2021 authors. Published by the American Physical Society.
ID: 388513075