Triangle Seminars
Monday, 28 Feb 2005
The spinorial geometry of supersymmetric backgrounds
📍 London
Ulf Gran
(KCL)
Abstract:
I will give an elementary and informal introduction to an
efficient method of solving the Killing spinor equations. The method is
based on the description of spinors in terms of forms and can be used to
classify the supersymmetric solutions in e.g. 11D and IIB supergravity.
I will give an elementary and informal introduction to an
efficient method of solving the Killing spinor equations. The method is
based on the description of spinors in terms of forms and can be used to
classify the supersymmetric solutions in e.g. 11D and IIB supergravity.
Posted by: KCL
Wednesday, 2 Mar 2005
Generalized complex structure and supersymmetry
📍 London
Maxim Zabzine
(Queen Mary College)
Thursday, 3 Mar 2005
The semi-classical approach to the gauge - string correspondence
Bogdan Stefanski
(IC)
Black Holes, the AdS correspondence, black rings and thermodynamics
Malcolm Perry
(Cambridge)
Abstract:
I will discuss the philosophy of the Euclidean field theory approach to black hole thermodynamics. I will then illustrate some of the difficulties presented by rotating black holes in AdS. Next, I will relate these results to the AdS-CFT correspondence. Finally, I will discuss the question of black rings, and make some heterodox comments on the difficulties that they pose for the Euclidean formulation.
I will discuss the philosophy of the Euclidean field theory approach to black hole thermodynamics. I will then illustrate some of the difficulties presented by rotating black holes in AdS. Next, I will relate these results to the AdS-CFT correspondence. Finally, I will discuss the question of black rings, and make some heterodox comments on the difficulties that they pose for the Euclidean formulation.
Posted by: IC
Friday, 4 Mar 2005
Strict quantisation and unbounded operators
Sebastien Racaniere
(Cambridge)
Abstract:
In quantum physics, the operators associated with the position
and the momentum of a particle are unbounded operators and
C-algebraic quantisation, or strict quantisation, does therefore not
deal with such operators. In this talk, I will show how to remedy this
problem for Lie-Poisson manifolds (this includes dual of Lie algebras
and cotangent bundle of manifolds). As an application, I will show with
an example how the quantisation of the dual of the Lie algebroid
associated to a Poisson manifold can lead to a quantisation of the
Poisson manifold itself. The example I consider is the torus with
constant symplectic structure, in which case I recover its usual C-algebraic quantisation.
In quantum physics, the operators associated with the position
and the momentum of a particle are unbounded operators and
C-algebraic quantisation, or strict quantisation, does therefore not
deal with such operators. In this talk, I will show how to remedy this
problem for Lie-Poisson manifolds (this includes dual of Lie algebras
and cotangent bundle of manifolds). As an application, I will show with
an example how the quantisation of the dual of the Lie algebroid
associated to a Poisson manifold can lead to a quantisation of the
Poisson manifold itself. The example I consider is the torus with
constant symplectic structure, in which case I recover its usual C-algebraic quantisation.
Posted by: KCL