24 citations · 31 across the 4 of their papers we have counts for
9 papers · 1 filter
Brane Nucleation in Supersymmetric Models
Igor Bandos, Jose J. Blanco-Pillado, Kepa Sousa +1
This paper explores the process of vacuum decay in supersymmetric models related to flux compactifications. In particular, we describe these instabilities within supersymmetric Lag…
Universal Class of Type-IIB Flux Vacua with Analytic Mass Spectrum
Jose J. Blanco-Pillado, Kepa Sousa, Mikel A. Urkiola +1
We report on a new class of flux vacua generically present in Calabi-Yau compactifications of type-IIB string theory. At these vacua, the mass spectrum of the complete axio-dilaton…
Towards a complete mass spectrum of type-IIB flux vacua at large complex structure
Jose J. Blanco-Pillado, Kepa Sousa, Mikel A. Urkiola +1
The large number of moduli fields arising in a generic string theory compactification makes a complete computation of the low energy effective theory infeasible. A common strategy…
Nothing is certain in string compactifications
Iñaki García Etxebarria, Miguel Montero, Kepa Sousa +1
A bubble of nothing is a spacetime instability where a compact dimension collapses. After nucleation, it expands at the speed of light, leaving "nothing" behind. We argue that the…
Slepian models for Gaussian Random Landscapes
Jose J. Blanco-Pillado, Kepa Sousa, Mikel A. Urkiola
Phenomenologically interesting scalar potentials are highly atypical in generic random landscapes. We develop the mathematical techniques to generate constrained random potentials,…
Supertranslations: redundancies of horizon data, and global symmetries at null infinity
Kepa Sousa, Guillermo Milans del Bosch, Borja Reina
We characterise the geometrical nature of smooth supertranslations defined on a generic non-expanding horizon (NEH) embedded in vacuum. To this end we consider the constraints impo…