Description
15+5 min talks.
Chair: Dennis D. Dietrich
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Ali Seraj (IPM, Tehran, Iran)20/07/2015, 14:00StudentsWe construct the classical phase space of Near-Horizon Extremal Geometries with fixed angular momenta and entropy. Each element in the phase space is a geometry with SL(2,R)×U(1)d−3 Killing isometries which has vanishing SL(2,R) and constant U(1) charges. In four spacetime dimensions, the symmetry algebra consists of the familiar Virasoro algebra, while in d>4 dimensions the symmetry algebra,...Go to contribution page
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Mr Mattia Colombo (University of Nottingham)20/07/2015, 14:20StudentsWhen Lorentz symmetry is broken, defining the concept of Black Hole becomes highly non-trivial. In this talk I wish to discuss the problems related to such definition and introduce a way to define the causal structure and horizons for a manifold with a preferred foliation.Go to contribution page
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Ms Marcela Cárdenas (Universidad de Concepción, Centro de Estudios Científicos)20/07/2015, 14:40StudentsWe present a Chern-Simons-like description of three-dimensional gravity with negative cosmological constant, where the matter source is a conformally coupled real scalar field. This description is based on a first-order action that provides a set of field equations equivalent to that derived from the usual second-order action. The system admits a rotating hairy black hole solution, which is...Go to contribution page
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Andrea Giugno (University of Bologna)20/07/2015, 15:00StudentsWe study a corpuscular model of evaporating black holes consisting of a large number $N$ of self-confined bosons. The single-particle spectrum contains a discrete ground state of energy $m$ (corresponding to toy gravitons forming a black hole), and a gapless continuous spectrum (to accommodate for Hawking radiation with energy $\omega>m$). In particular, we consider each constituent in a...Go to contribution page