Triangle Seminars
Tuesday, 29 Jan 2013
Uses of String Theory
David Tong
(DAMTP, Cambridge)
Wednesday, 30 Jan 2013
Scalar fields, higher spin black holes and W_N minimal models
📍 London
Eric Perlmutter
(DAMTP Cambridge)
Abstract:
We discuss various recent computations that come to bear on the conjectured holographic duality between Vasiliev's theory of 3d higher spin gravity and families of 2d CFTs with W symmetry, at both zero and finite temperature. These rely on novel, purely algebraic methods for computing bulk-boundary propagators for scalar fields in Vasiliev theory. Among other topics to be discussed, our results further clarify the physical content of the term "higher spin black hole" and the nature of the classical limit required for the duality.
We discuss various recent computations that come to bear on the conjectured holographic duality between Vasiliev's theory of 3d higher spin gravity and families of 2d CFTs with W symmetry, at both zero and finite temperature. These rely on novel, purely algebraic methods for computing bulk-boundary propagators for scalar fields in Vasiliev theory. Among other topics to be discussed, our results further clarify the physical content of the term "higher spin black hole" and the nature of the classical limit required for the duality.
Posted by: KCL
Holographic d-wave superconductors
Marika Taylor
(Southampton)
Abstract:
In recent years there has ben considerable interest in using holographic methods to model strongly interacting condensed matter systems, including unconventional superconductors. However, many high Tc superconductors exhibit d-wave pairing and a satisfactory holographic realization of d-wave superconductors has been elusive. In this talk we will present a top down model for d-wave superconductors and discuss its phenomenology.
In recent years there has ben considerable interest in using holographic methods to model strongly interacting condensed matter systems, including unconventional superconductors. However, many high Tc superconductors exhibit d-wave pairing and a satisfactory holographic realization of d-wave superconductors has been elusive. In this talk we will present a top down model for d-wave superconductors and discuss its phenomenology.
Posted by: IC
Instantons in Field Theory and String Theory – Leverhulme Lectures
Massimo Bianchi
Abstract:
QMUL Graduate Lectures
QMUL Graduate Lectures
Posted by: QMW
Thursday, 31 Jan 2013
Deformed Seiberg-Witten curves for ADE quivers
Daniel Ricci Pacifici
(Padova)
Abstract:
We study N=2 ADE quiver gauge theories in presence of a non-trivial Omega background along a two dimensional plane. In particular we perform a saddle point analysis to the partition function and derive an epsilon-deformed version of Seiberg-Witten like equations. The result can be interpreted as a non-commutative version of the standard Seiberg-Witten curves associated to the quiver theories.
We study N=2 ADE quiver gauge theories in presence of a non-trivial Omega background along a two dimensional plane. In particular we perform a saddle point analysis to the partition function and derive an epsilon-deformed version of Seiberg-Witten like equations. The result can be interpreted as a non-commutative version of the standard Seiberg-Witten curves associated to the quiver theories.
Posted by: IC