Seminar series
Date
Tue, 01 Dec 2009
12:00
12:00
Location
L3
Speaker
James Lucietti
Organisation
Imperial
Extremal black holes are of interest as they are expected have simpler quantum descriptions than their non-extremal counterparts. Any extremal black hole solution admits a well defined notion of a near horizon geometry which solves the same field equations. I will describe recent progress on the general understanding of such near horizon geometries in four and higher dimensions. This will include the proof of near-horizon symmetry enhancement and the explicit classification of near-horizon geometries (in a variety of settings). I will also discuss how one can use such results to prove classification/uniqueness theorems for asymptotically flat extremal vacuum black holes in four and five dimensions.