Vendredi 28 novembre 2014 à 14h15
Auditoire Stueckelberg, Ecole de Physique
Corpuscular structure of gravity
G. Dvali, University of Munich and New York University
We review some new ideas about the quantum corpuscular substructure of black holes, according to which a black hole represents a bound-state of many soft gravitons. We show how this picture explains the known seemingly-mysterious properties, such as entropy, thermality and holography, but also predicts new phenomena not accounted by the standard semi-classical treatment. Among other things, these corpuscular effects shed light on black hole information processing and scrambling as well as on the microscopic picture of black production in high-energy particle scattering. We also discuss applications of analogous corpuscular ideas to the inflationary cosmology and their observational consequences.