Objetivo String theory provides with a consistent framework which combines quantum mechanics and gravity. Two grand challenges of fundamental physics - building realistic models of black holes and cosmologies - can be addressed in this framework thanks to novel holographic methods.Recent astrophysical evidence indicates that some black holes rotate extremely fast, as close as 98% to the extremality bound. No quantum gravity model for such black holes has been formulated so far. My first objective is building the first model in string theory of an extremal black hole. Taking on this challenge is made possible thanks to recent advances in a remarkable duality known as the gauge/gravity correspondence. If successful, this program will pave the way to a description of quantum gravity effects that have been conjectured to occur close to the horizon of very fast rotating black holes.Supernovae detection has established that our universe is starting a phase of accelerated expansion. This brings a pressing need to better understand still enigmatic features of de Sitter spacetime that models our universe at late times. My second objective is to derive new universal properties of the cosmological horizon of de Sitter spacetime using tools inspired from the gauge/gravity correspondence. These results will contribute to understand its remarkable entropy, which, according to the standard model of cosmology, bounds the entropy of our observable universe. Ámbito científico natural sciencesphysical sciencestheoretical physicsparticle physicsnatural sciencesphysical sciencesquantum physicsnatural sciencesphysical sciencesastronomyastrophysicsblack holesnatural sciencesphysical sciencestheoretical physicsstring theorynatural sciencesphysical sciencesastronomyphysical cosmology Programa(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Tema(s) ERC-SG-PE2 - ERC Starting Grant - Fundamental constituents of matter Convocatoria de propuestas ERC-2013-StG Consulte otros proyectos de esta convocatoria Régimen de financiación ERC-SG - ERC Starting Grant Institución de acogida UNIVERSITE LIBRE DE BRUXELLES Aportación de la UE € 1 020 084,00 Dirección AVENUE FRANKLIN ROOSEVELT 50 1050 Bruxelles / Brussel Bélgica Ver en el mapa Región Région de Bruxelles-Capitale/Brussels Hoofdstedelijk Gewest Région de Bruxelles-Capitale/ Brussels Hoofdstedelijk Gewest Arr. de Bruxelles-Capitale/Arr. Brussel-Hoofdstad Tipo de actividad Higher or Secondary Education Establishments Investigador principal Geoffrey Gaston Joseph Jean-Vincent Compère (Dr.) Contacto administrativo Anastasios Perimenis (Mr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos Beneficiarios (1) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo UNIVERSITE LIBRE DE BRUXELLES Bélgica Aportación de la UE € 1 020 084,00 Dirección AVENUE FRANKLIN ROOSEVELT 50 1050 Bruxelles / Brussel Ver en el mapa Región Région de Bruxelles-Capitale/Brussels Hoofdstedelijk Gewest Région de Bruxelles-Capitale/ Brussels Hoofdstedelijk Gewest Arr. de Bruxelles-Capitale/Arr. Brussel-Hoofdstad Tipo de actividad Higher or Secondary Education Establishments Investigador principal Geoffrey Gaston Joseph Jean-Vincent Compère (Dr.) Contacto administrativo Anastasios Perimenis (Mr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos
