Triangle Seminars
Monday, 10 Nov 2008
Principia 3-algebraica
Paul de Medeiros
(Edinburgh)
Abstract:
A precise method for relating quite general kinds of metric 3-algebras with metric Lie algebras and their unitary representations will be described. Several special cases of this construction will be highlighted, that apply to certain types of superconformal field theories dual to M2-brane configurations. Recognition of M-theoretic properties in terms of Lie-algebraic data will be noted in passing. Some remarks will be made on the general structure of metric Lie 3-algebras, which describe maximally supersymmetric Bagger-Lambert theories.
A precise method for relating quite general kinds of metric 3-algebras with metric Lie algebras and their unitary representations will be described. Several special cases of this construction will be highlighted, that apply to certain types of superconformal field theories dual to M2-brane configurations. Recognition of M-theoretic properties in terms of Lie-algebraic data will be noted in passing. Some remarks will be made on the general structure of metric Lie 3-algebras, which describe maximally supersymmetric Bagger-Lambert theories.
Posted by: IC
Wednesday, 12 Nov 2008
A bound state in a conformal field theory with continuous spectrum and deep throat D-branes
Jan Troost
(ENS Paris)
Gauge/Gravity Duality in Supersymmetric and Non-Supersymmetric Vacua
Riccardo Argurio
(Universite Libre de Bruxelles)
Abstract:
I start by giving a brief introduction to the duality between string theory and gauge theories. I will underscore the dictionary between geometrical data on the string side, and dynamical effects on the gauge theory side. Different kinds of fractional branes lead to different IR dynamics, such as confinement, Coulomb branches, and runaway or metastable supersymmetry breaking. I then review a model, D3-branes on the orbifold of the conifold, that displays all of the above behaviors. Of particular interest is the case when different fractional branes are present at the same time, leading to a rich dynamical interplay.
I start by giving a brief introduction to the duality between string theory and gauge theories. I will underscore the dictionary between geometrical data on the string side, and dynamical effects on the gauge theory side. Different kinds of fractional branes lead to different IR dynamics, such as confinement, Coulomb branches, and runaway or metastable supersymmetry breaking. I then review a model, D3-branes on the orbifold of the conifold, that displays all of the above behaviors. Of particular interest is the case when different fractional branes are present at the same time, leading to a rich dynamical interplay.
Posted by: KCL