Triangle Seminars
Wednesday, 23 Nov 2011
Branes and Monopoles
📍 London
Eric Bergshoeff
(University of Groningen)
Abstract:
We show that in order to understand the higher-dimensional origin of all supersymmetric branes in (toroidally) compactified string theory one needs to extend the family of branes with an additional set of so-called ``generalized monopoles''. We will show what these monopoles are and how they lead to interesting ``wrapping rules'' for the branes in string theory.
We show that in order to understand the higher-dimensional origin of all supersymmetric branes in (toroidally) compactified string theory one needs to extend the family of branes with an additional set of so-called ``generalized monopoles''. We will show what these monopoles are and how they lead to interesting ``wrapping rules'' for the branes in string theory.
Posted by: KCL
Holography of Einstein-Maxwell-Dilaton theories and applications to Condensed Matter Systems
Blaise Gouteraux
(Paris 7)
Thursday, 24 Nov 2011
tba
matthew buican
(cern)
Friday, 25 Nov 2011
Surprises with Interacting High Spin Particles
Massimo Porrati
(New York University)
Abstract:
This colloquium reviews old and new no go theorems that severely constrain possible interactions of massless high spin particles. Massive particles can interact with gauge fields and gravity, but often they are plagued by pathologies such as superluminal propagation in nontrivial backgrounds. The last part of the talk uses the example of open string theory to show that such pathologies can be avoided by an appropriate choice of non-minimal interactions.
This colloquium reviews old and new no go theorems that severely constrain possible interactions of massless high spin particles. Massive particles can interact with gauge fields and gravity, but often they are plagued by pathologies such as superluminal propagation in nontrivial backgrounds. The last part of the talk uses the example of open string theory to show that such pathologies can be avoided by an appropriate choice of non-minimal interactions.
Posted by: IC