3 papers
hep-th2026
Gravity Decoupling and Axionic Shift Symmetries
Christian Aoufia, Gonzalo F. Casas, Fernando Marchesano
We analyse the rôle of approximate axionic shift symmetries in gravity-decoupling limits arising in type II Calabi-Yau compactifications. Associated with each shift symmetry there…
hep-th2024
Cosmology of light towers and swampland constraints
Gonzalo F. Casas, Ignacio Ruiz
We study the dynamical evolution of FLRW cosmologies in the presence of a tower of scalar light states and a runaway exponential potential. Some of the attractor solutions have pro…
hep-th2024
Cosmological Chameleons, String Theory and the Swampland
Gonzalo F. Casas, Miguel Montero, Ignacio Ruiz
We study a scenario with a transient phase of cosmological acceleration that could potentially be realized in asymptotic corners of String Theory moduli space. A very steep scalar…