Journal Article

PUBDB-2025-04973

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Uplifts in the penumbra: features of the moduli potential away from infinite-distance boundaries

Lanza, S. (Corresponding author)Extern* ; Westphal, A.DESY*

2025
Springer Heidelberg

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Please use a persistent id in citations: doi:10.1007/JHEP05(2025)071  doi:10.3204/PUBDB-2025-04973

Report No.: DESY-24-199; arXiv:2412.12253

Abstract: The construction of meta-stable four-dimensional de Sitter vacua in type IIB string compactifications represents an important question and an ongoing area of work. There is considerable support both for stringy de Sitter vacua in the interior of moduli space and for their scarceness in the strict asymptotic regime towards infinite-distance boundaries of the compactification moduli space. Here, we present evidence for the existence of uplifting vacua in the three-form flux-induced scalar potential of the complex structure moduli of type IIB string theory on Calabi-Yau orientifolds in the cross-over region between the interior of the moduli space and its strictly asymptotic infinite-distance regions. Moreover, we also exhibit the existence of long-range axion valleys which, while not yet supporting slow-roll inflation, do show a flattened scalar potential from complex structure moduli backreaction and axion monodromy. We further illustrate how such regions hosting axion valleys may be obtained by using machine learning techniques.

Keyword(s): Flux Compactifications ; String and Brane Phenomenology

Note: cc-by, 45 pages, 30 figures; v2: fixed typos & refs, aligned example geometric parameter choices with correct domain range

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe (390833306) (390833306)
3. SFB 1624 B03 - Modulräume und Quantengravitation (B03) (531727554) (531727554)
4. DFG project G:(GEPRIS)471314740 - Holographie und das Swampland: Konsistenzbedingungen an fundamentale Physik aus der Quantengravitation (471314740) (471314740)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Lanza, S.Extern* ; Westphal, A. (Corresponding author)DESY*
Uplifts in the Penumbra: Features of the Moduli Potential away from Infinite-Distance Boundaries
[10.3204/PUBDB-2024-07708]     Files  Fulltext Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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