Article
Physics, Particles & Fields
Federico Carta, Alessandro Mininno, Nicole Righi, Alexander Westphal
Summary: This study proposes a combined mechanism for winding inflation and de Sitter uplifts, using the Gopakumar-Vafa invariants of Calabi-Yau threefolds. A database is created to demonstrate the existence of Calabi-Yau threefolds with the prescribed hierarchy of invariants. Redundancies in the CICY list are also identified as a side result.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Thomas W. Grimm, Chongchuo Li
Summary: The study focuses on the backreaction effect of a large axion field on its saxion partner in the same N = 1 multiplet, highlighting the remarkable pattern engraved by the boundary structure in scalar potentials.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Michele Cicoli, Andreas Schachner, Pramod Shukla
Summary: This article investigates the problem of moduli stabilisation in superstring compactifications on Calabi-Yau orientifolds and provides novel insights into the F-term scalar potential. By considering superpotential contributions with different moduli dependences, we prove the existence of a no-scale structure for odd moduli and derive the exact expressions for the no-scale breaking effects. Finally, we calculate the Hessian for odd moduli and discuss potential phenomenological implications.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
David Andriot, Ludwig Horer, George Tringas
Summary: In this paper, we characterize negative scalar potentials, V < 0, in d-dimensional effective theories of quantum gravity through the Anti-Trans-Planckian Censorship Conjecture (ATCC) inspired by a refined version of the TCC. The ATCC is based on the fact that sub-Planckian length modes violate the validity of the effective theory in a contracting universe. In the asymptotics of field space, we find that -V'/V >= c(0) when V' >= 0. We also derive a new asymptotic condition, V''/V >= c(0)(2), and infer the existence of a scalar with mass satisfying m(2)l(2) less than or similar to -2 in anti-de Sitter solutions.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Bruno Valeixo Bento, Dibya Chakraborty, Susha Parameswaran, Ivonne Zavala
Summary: This article investigates various string-loop, warping, and curvature corrections in type IIB moduli stabilisation scenarios. By studying weakly-warped LVS de Sitter vacua, it is found that some corrections become less problematic and even helpful in reaching the weakly-warped parameter space. However, other corrections remain dangerous and require small numerical coefficients to preserve the consistency of the weakly-warped LVS de Sitter solution.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Iosif Bena, Johan Blaback, Mariana Grana, Severin Lust
Summary: By analyzing examples such as K3xK3 and CP3 compactifications, we conjecture that it is not possible to stabilize all complex-structure moduli in F-theory using fluxes, which has implications for certain vacuum solutions.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Erik Plauschinn
Summary: The study provides evidence for the correctness of the tadpole conjecture by analyzing statistical data, which indicates that not all complex-structure moduli can be stabilized by fluxes in string-theory compactifications with a large number of moduli.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Xin Gao, Arthur Hebecker, Simon Schreyer, Gerben Venken
Summary: This paper investigates the large volume scenario of de Sitter compactifications in the type IIB string and proposes a simple and explicit formula for controlling corrections. By controlling parameters, the interaction between control quality and the tadpole conjecture is discussed, and the directions for future research and potential challenges are explored.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Jose Calderon-Infante, Angel M. Uranga, Irene Valenzuela
Summary: The Swampland Distance Conjecture places restrictions on the geodesic distances that scalars can travel in effective field theories, particularly along trajectories in potential valleys. By expressing the SDC as a new Convex Hull constraint on trajectories, critical trajectories that fulfill maximum non-geodesicity allowed by the SDC can be obtained.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Keiya Ishiguro, Hajime Otsuka
Summary: This study investigates the vacuum structure of a four-dimensional effective theory, revealing a strong correlation between unstable de Sitter vacua and stable de Sitter vacua. The presence of flux-induced D3-brane charge restricts the existence of stable de Sitter vacua, supporting the dS conjecture. Additionally, numerical results demonstrate that parameters in several swampland conjectures peak at specific values.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Thibaut Coudarchet, Fernando Marchesano, David Prieto, Mikel A. Urkiola
Summary: We analyze the tree-level potential of type IIB flux compactifications in warped Calabi-Yau orientifolds, in regions of weak coupling and moderately large complex structure. In this regime, we argue that vacua fall into three classes, for which one can push the analytic description of their features. Our findings provide analytic expressions for the vacuum expectation values and flux-induced masses of the axio-dilaton and complex structure fields in a large subclass of vacua, independently of the Calabi-Yau and the number of moduli. We show that supersymmetric vacua always contain flat directions, at least at this level of approximation. Our findings allow to generate vast ensembles of flux vacua in specific Calabi-Yau geometries, as we illustrate in a particular example.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Erik Plauschinn
Summary: In this note, the mass spectrum of type IIB flux compactifications is studied. The mass matrix for F-term vacua in four-dimensional N = 1 supergravity theories is discussed in general, and then specialized to type IIB Calabi-Yau orientifold compactifications with geometric and non-geometric fluxes. In this setting, F-term vacua are generally AdS4 vacua, and the conformal dimensions of operators dual to the scalar fields are computed. One-loop corrections to the complex-structure moduli space lead to real-valued conformal dimensions for the mirror-dual of the DGKT construction, while non-integer conformal dimensions are obtained for a more general flux configuration than the DGKT mirror. It is also argued that stabilizing the axio-dilaton and complex-structure moduli in asymptotic regions of moduli space by fluxes implies that at least one of the corresponding mass eigenvalues diverges.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
David Andriot, Paul Marconnet, Muthusamy Rajaguru, Timm Wrase
Summary: Classical flux compactifications are an important research field in string theory, providing a testing ground for various conjectures. This paper focuses on type II supergravity compactifications on 6d group manifolds towards 4d maximally symmetric spacetimes, and develops a code for automated calculations and analysis.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Severin Lust, Max Wiesner
Summary: This paper focuses on moduli stabilization on Calabi-Yau manifolds with a discrete symmetry. By using invariant fluxes, the dimensionality of the problem is significantly reduced, allowing for a bypass of the constraints predicted by the tadpole conjecture.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Jose J. Blanco-Pillado, Kepa Sousa, Mikel A. Urkiola, Jeremy M. Wachter
Summary: This paper discusses the tree-level mass spectrum of type-IIB flux compactifications at Large Complex Structure, focusing on models with a reduced one-dimensional complex structure sector. The calculation shows that the masses of this set of fields are naturally heavy at vacua consistent with the KKLT construction, and discusses phenomenologically interesting scenarios where the spectrum involves fields much lighter than the gravitino. The results also derive the probability distribution for the masses on the ensemble of flux vacua, exhibiting universal features independent of the details of the compactification.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Inaki Garcia-Etxebarria, Thomas W. Grimm, Irene Valenzuela
Article
Physics, Particles & Fields
Sjoerd Bielleman, Luis E. Ibanez, Irene Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2015)
Article
Physics, Particles & Fields
Miguel Montero, Angel M. Uranga, Irene Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2015)
Article
Physics, Particles & Fields
Luis E. Ibanez, Fernando Marchesano, Irene Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2015)
Article
Physics, Particles & Fields
Sjoerd Bielleman, Luis E. Ibanez, Francisco G. Pedro, Irene Valenzuela, Clemens Wieck
JOURNAL OF HIGH ENERGY PHYSICS
(2016)
Article
Physics, Particles & Fields
L. E. Ibanez, M. Montero, A. M. Uranga, I. Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2016)
Article
Physics, Particles & Fields
S. Bielleman, L. E. Ibanez, F. G. Pedro, I. Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2016)
Article
Physics, Particles & Fields
Miguel Montero, Angel M. Uranga, Irene Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
Ralph Blumenhagen, Irene Valenzuela, Florian Wolf
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
Sjoerd Bielleman, Luis E. Ibanez, Francisco G. Pedro, Irene Valenzuela, Clemens Wieck
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
Luis E. Ibanez, Victor Martin-Lozano, Irene Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
Thomas W. Grimm, Eran Palti, Irene Valenzuela
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Physics, Multidisciplinary
Yuta Hamada, Miguel Montero, Cumrun Vafa, Irene Valenzuela
Summary: This paper explores certain swampland criteria from the perspective of the finiteness of black hole entropy and suggests that these criteria may fundamentally result from the finiteness of quantum gravity amplitudes.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2022)
Review
Physics, Multidisciplinary
Marieke van Beest, Jose Calderon-Infante, Delaram Mirfendereski, Irene Valenzuela
Summary: The Swampland program aims to determine the constraints that must be satisfied by an effective field theory to be consistent with a UV embedding in a quantum gravity theory. This article provides a pedagogical introduction to the most important Swampland conjectures, their connections, and their realization in string theory compactifications.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)