Crisis on infinite earths: short-lived de Sitter vacua in the string theory landscape

Bernardo, Heliudson, Brahma, Suddhasattwa, Dasgupta, Keshav and Tatar, Radu (2021) Crisis on infinite earths: short-lived de Sitter vacua in the string theory landscape. JOURNAL OF HIGH ENERGY PHYSICS, 2021 (4). 37-.

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Official URL: http://dx.doi.org/10.1007/jhep04(2021)037

Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We construct <jats:italic>purely non-perturbative</jats:italic> anti-de Sitter vacua in string theory which, on uplifting to a de Sitter (dS) one, have a decay time many orders of magnitude smaller than those of standard constructions, such as the KKLT and LVS scenarios. By virtue of being constructed purely from non-perturbative terms, these vacua avoids certain obstructions plaguing other constructions of dS in string theory. This results in a new class of phenomenological dS vacua in string theory with novel distinctive characteristics such as having two maxima. After examining whether these uplifted dS vacua obey the TCC, we revisit some old problems of realization of dS space as a <jats:italic>vacuum</jats:italic>. We find that not only is it phenomenologically hard to construct TCC-compatible vacua, but also inherent temporal dependences of the degrees of freedom generically arise in such constructions, amongst other issues. This reinforces the idea that dS, if it exists in string theory, should be a Glauber-Sudarshan state and not a vacuum.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	Flux compactifications, M-Theory, Superstring Vacua
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	12 May 2021 09:24
Last Modified:	17 Mar 2024 11:49
DOI:	10.1007/JHEP04(2021)037
Open Access URL:	https://link.springer.com/article/10.1007%2FJHEP04...
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3122435