Triangle Seminars
Wednesday, 10 Oct 2018
Connecting the weak gravity conjecture to the weak cosmic censorship
📍 London
Jorge Santos
(University of Cambridge)
Abstract:
I will describe some counterexamples to (weak) cosmic censorship in anti-de Sitter spacetime that have been found recently. These are solutions in which the curvature grows without bound in a region of spacetime visible to infinity. I will also discuss a surprising connection between some of these counterexamples and an apparently unrelated conjecture called the weak gravity conjecture.
I will describe some counterexamples to (weak) cosmic censorship in anti-de Sitter spacetime that have been found recently. These are solutions in which the curvature grows without bound in a region of spacetime visible to infinity. I will also discuss a surprising connection between some of these counterexamples and an apparently unrelated conjecture called the weak gravity conjecture.
Posted by: KCL
Topologically twisted indices and holography
Alberto Zaffaroni
(INFN, Milan Bicocca U.)
Abstract:
Abstract: We define indices for topologically twisted supersymmetric theories from two to five dimensions.
We apply them to the holographic study of AdS black holes, black strings and domain-walls
across dimensions.
Abstract: We define indices for topologically twisted supersymmetric theories from two to five dimensions.
We apply them to the holographic study of AdS black holes, black strings and domain-walls
across dimensions.
Posted by: IC
Thursday, 11 Oct 2018
Some lessons from/for Supergravity in AdS4/CFT3
Costantin Bachas
(ENS Paris)
Abstract:
I will first review the AdS4/SCFT3 correspondence with N=4
supersymmetry. I will then focus on two special aspects which are important in exploring the string landscape:
(1) The existence of N=2 moduli and their fate in gauged supergravity;
(2) Special degeneration limits for which the low-energy limit is a theory of bigravity or massive gravity.
I will first review the AdS4/SCFT3 correspondence with N=4
supersymmetry. I will then focus on two special aspects which are important in exploring the string landscape:
(1) The existence of N=2 moduli and their fate in gauged supergravity;
(2) Special degeneration limits for which the low-energy limit is a theory of bigravity or massive gravity.
Posted by: QMW