Results 1 to 10 of about 27,946 (159)
Seeking de Sitter vacua in the string landscape [PDF]
Proceedings of Corfu Summer Institute 2022 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2022), 2023 In this report, we present a concise review on the various moduli stabilisation schemes proposed in the context of type IIB superstring compactifications using Calabi-Yau orientifolds.
G. Leontaris, P. Shukla
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Journal of High Energy Physics, 2020 We study the topological properties of Calabi-Yau threefold hypersurfaces at large h 1,1. We obtain two million threefolds X by triangulating polytopes from the Kreuzer-Skarke list, including all polytopes with 240 ≤ h 1,1 ≤ 491.
Mehmet Demirtas +3 more
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Mass spectrum of type IIB flux compactifications — comments on AdS vacua and conformal dimensions
Journal of High Energy Physics, 2023 In this note we study the mass spectrum of type IIB flux compactifications. We first give a general discussion of the mass matrix for F-term vacua in four-dimensional N $$ \mathcal{N} $$ = 1 supergravity theories and then specialize to type IIB Calabi ...
Erik Plauschinn
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Non-perturbative stability of supergravity and superstring vacua [PDF]
, 1992 We investigate the possibility of false vacuum decay in N = 1 supergravity theories. By establishing a Bogomol'nyi bound for the energy density stored in the domain wall of the O(4) invariant bubble, we show that supersymmetric vacua remain absolutely ...
M. Cvetič, S. Griffies, S. Rey
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On K3-fibred LARGE Volume Scenario with de Sitter vacua from anti-D3-branes [PDF]
Journal of High Energy Physics, 2022 In the context of type IIB superstring compactifications on K3-fibred (weak) Swiss-cheese Calabi Yau (CY) orientifolds, we consider the realisation of de Sitter vacua obtained through the introduction of an D 3 ¯ $$ \overline{D3} $$ -brane at the tip of ...
Shehu S. Abdussalam +2 more
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On scale separation in type II AdS flux vacua
Journal of High Energy Physics, 2020 We study the separation of AdS and Kaluza-Klein (KK) scales in type II 4d AdS orientifold vacua. We first address this problem in toroidal/orbifold type IIA vacua with metric fluxes, corresponding to compactifications in twisted tori, both from the 4d ...
Anamaría Font +2 more
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Inflation, gravity mediated supersymmetry breaking, and de Sitter vacua in supergravity with a Kähler-invariant Fayet-Iliopoulos term [PDF]
Physical Review D, 2021 We use a new mechanism for generating a Fayet-Iliopoulos term in supergravity, which is not associated to an R symmetry, to construct a semi-realistic theory of slow-roll inflation for a theory with the same K¨ahler potential and superpotential as the ...
Hun Jang, M. Porrati
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Critical superstring vacua from noncritical manifolds: A novel framework for string compactification and mirror symmetry. [PDF]
Physical Review Letters, 1992 A new framework is found for the compactification of supersymmetric string theory. It is shown that the massless spectra of critical string vacua with central charge [ital c]=3[ital D][sub crit] can be derived from manifolds of complex dimension [ital D][
R. Schimmrigk
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Classification of Flat Directions in Perturbative Heterotic Superstring Vacua with Anomalous U(1) [PDF]
, 1997 We develop techniques to classify D - and F -flat directions for N = 1 supersymmetric string vacua of the perturbative heterotic string theory, which possess an anomalous U (1) gauge group at the tree level.
G. Cleaver +4 more
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Systematics of type IIA moduli stabilisation
Journal of High Energy Physics, 2020 We analyse the flux-induced scalar potential for type IIA orientifolds in the presence of p-form, geometric and non-geometric fluxes. Just like in the Calabi-Yau case, the potential presents a bilinear structure, with a factorised dependence on axions ...
Fernando Marchesano +3 more
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