All Outputs (4)

CMB constraints on monodromy inflation at strong coupling (2022)
Journal Article
Copeland, E. J., Cunillera, F., Moss, A., & Padilla, A. (2022). CMB constraints on monodromy inflation at strong coupling. Journal of Cosmology and Astroparticle Physics, 2022(09), Article 080. https://doi.org/10.1088/1475-7516/2022/09/080

We carry out a thorough numerical examination of field theory monodromy inflation at strong coupling. We perform an MCMC analysis using a Gaussian likelihood, fitting multiparameter models using CMB constraints on the spectral index and the tensor to... Read More about CMB constraints on monodromy inflation at strong coupling.

Generalised scalar-tensor theories and self-tuning (2022)
Journal Article
Copeland, E. J., Ghataore, S., Niedermann, F., & Padilla, A. (2022). Generalised scalar-tensor theories and self-tuning. Journal of Cosmology and Astroparticle Physics, 2022(3), Article 004. https://doi.org/10.1088/1475-7516/2022/03/004

We explore a family of generalised scalar-tensor theories that exhibit self-tuning to low scale anti de Sitter vacua, even in the presence of a large cosmological constant. We are able to examine the linearised fluctuations about these vacua and comp... Read More about Generalised scalar-tensor theories and self-tuning.

Quintessence and the Swampland: The Numerically Controlled Regime of Moduli Space (2022)
Journal Article
Cicoli, M., Cunillera, F., Padilla, A., & Pedro, F. G. (2022). Quintessence and the Swampland: The Numerically Controlled Regime of Moduli Space. Fortschritte der Physik / Progress of Physics, 70(4), Article 2200008. https://doi.org/10.1002/prop.202200008

We provide a detailed discussion of the main theoretical and phenomenological challenges of quintessence model building in any numerically controlled regime of the moduli space of string theory. We argue that a working quintessence model requires a l... Read More about Quintessence and the Swampland: The Numerically Controlled Regime of Moduli Space.

Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua (2022)
Journal Article
Cunillera, F., Emond, W. T., Lehébel, A., & Padilla, A. (2022). Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua. Journal of High Energy Physics, 2022(2), Article 12. https://doi.org/10.1007/jhep02%282022%29012

We investigate the combined effect of fluxes and higher-order curvature corrections, in the form of the Gauss-Bonnet term, on the existence of de Sitter vacua in a heterotic string inspired framework, compactified on spheres and tori. We first gain s... Read More about Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua.