Stabilising all Kähler moduli in perturbative LVS

Leontaris, G.K.; Shukla, Pramod

doi:10.1007/jhep07(2022)047

Cited by 12 publications

(11 citation statements)

References 55 publications

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“…In our analysis, we will have the Large Volume Scenario (LVS) [4,5] in the back of our minds as this is a prototypical example of a model with fluxes where a better understanding of loop and α corrections is crucial -see [32][33][34][35][36][37][38][39][40][41][42][43][44] for recent work on loop and α corrections in this and related settings. However, our findings are not restricted to the LVS and should be relevant more generally in the type-IIB context.…”

Section: Jhep09(2022)091 1 Introductionmentioning

confidence: 99%

Loops, local corrections and warping in the LVS and other type IIB models

Gao

Hebecker

Simon

et al. 2022

J. High Energ. Phys.

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To establish metastable de Sitter vacua or even just scale-separated AdS, control over perturbative corrections to the string-derived leading-order 4d lagrangian is crucial. Such corrections can be classified in three types: first, there are genuine loop effects, insensitive to the UV completion of the 10d theory. Second, there are local α′ corrections or, equivalently, 10d higher-dimension operators which may or may not be related to loop-effects. Third, warping corrections affect the 4d Kahler potential but are expected not to violate the 4d no-scale structure. With this classification in mind, we attempt to derive the Berg-Haack-Pajer conjecture for Kahler corrections in type-IIB Calabi-Yau orientifolds and extend it to include further terms. This is crucial since the interesting applications of this conjecture are in the context of generic Calabi-Yau geometries rather than in the torus-based models from which the main motivation originally stems. As an important by-product, we resolve a known apparent inconsistency between the parametric behaviour of string loop results and field-theoretic expectations. Our findings lead to some interesting new statements concerning loop effects associated with blowup-cycles, loop corrections in fibre inflation, and possible logarithmic effects in the Kahler and scalar potential.

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Section: Jhep09(2022)091 1 Introductionmentioning

confidence: 99%

Loops, local corrections and warping in the LVS and other type IIB models

Gao

Hebecker

Simon

et al. 2022

J. High Energ. Phys.

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“…These assumptions translate into a series of requirements that a model has to satisfy in order to be consistent. In this context, there have been a great amount of efforts in global model building [7,[28][29][30][31][32][33][34][35][36][37][38][39][40], in order to make systematic the simple model building…”

Section: Jhep03(2023)132mentioning

confidence: 99%

On K3-fibred LARGE Volume Scenario with de Sitter vacua from anti-D3-branes

AbdusSalam

Crinò

Shukla

2023

J. High Energ. Phys.

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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 $$ \overline{D3} $$ D 3 ¯ -brane at the tip of a highly warped throat of Klebanov-Strassler type. Aiming to have a concrete global realisation, we perform a systematic search for the CY threefolds with 2 < h1,1< 5 arising from the Kreuzer-Skarke database, which satisfy the minimal requirements of being K3-fibred and suitable for moduli stabilisation within the LARGE Volume Scenario (LVS). In this context, after scanning the set of K3-fibred CY threefolds with a so-called diagonal del-Pezzo divisor needed for LVS, we realise that one of the main challenging requirements for having $$ \overline{D3} $$ D 3 ¯ -brane uplifting is to find a suitable orientifold involution which can simultaneously result in a sufficient large D3 tadpole charge along with the presence of suitable O3-planes. In our detailed analysis (limited to) using the CY threefolds with small h1,1, we observe that these topological requirements rule out most of the CY geometries leading to only few possibly suitable candidates for the purpose of $$ \overline{D3} $$ D 3 ¯ -brane uplifting. Subsequently, we present a global model using one such explicit K3-fibred CY threefold with h1,1 = 4 in which all the moduli can be consistently stabilised in a de Sitter minimum of the scalar potential.

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“…see e.g. [33,35,43,44,[128][129][130][131][132][133][134][135][136][137][138][139][140][141][142]. This has led to the development of several efficient/powerful tools/packages such as "Package for analyzing lattice polytopes" (PALP) [143,144], cohomCalg [145,146] and CYTools.…”

Section: Cy Compactifications and Moduli Fieldsmentioning

confidence: 99%

“…In recent years, these corrections have received a significant amount of attention in the context of LVS moduli stabilisation and inflation, e.g. see [137,139,191].…”

Section: Higher Derivative 4 -Correctionsmentioning

confidence: 99%

See 1 more Smart Citation

String loop corrections and de Sitter vacua

Leontaris¹,

Antoniadis²,

Chen³

2020

Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019)

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The problem of moduli stabilisation is discussed in type IIB/F-theory. Considering a configuration of three intersecting D7 branes with fluxes, it is shown that higher loop effects induce logarithmic corrections to the Kähler potential which can stabilise Kähler moduli, in particular the internal volume of the compactification space in 4 dimensions. It is also explained how Dterm contributions to the effective potential stabilise the rest of the Kähler moduli and uplift to de Sitter vacua.

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Stabilising all Kähler moduli in perturbative LVS

Cited by 12 publications

References 55 publications

Loops, local corrections and warping in the LVS and other type IIB models

Loops, local corrections and warping in the LVS and other type IIB models

On K3-fibred LARGE Volume Scenario with de Sitter vacua from anti-D3-branes

String loop corrections and de Sitter vacua

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