Triangle Seminars
Monday, 27 Feb 2006
Nongeometry, Duality Twists, and the Worldsheet
Brooke Williams
(Amsterdam)
Tuesday, 28 Feb 2006
Large-N gauge theories : the view from the lattice
Mike Teper
(Oxford)
Abstract:
I review what one has learned about SU(N) gauge theories from lattice calculations. I will discuss the mass spectrum, finite T phase transitions, k-strings, topology and strong-to-weak coupling transitions as well as the basic question of how close N=3 is to N=infinity.
I review what one has learned about SU(N) gauge theories from lattice calculations. I will discuss the mass spectrum, finite T phase transitions, k-strings, topology and strong-to-weak coupling transitions as well as the basic question of how close N=3 is to N=infinity.
Posted by: IC
Wednesday, 1 Mar 2006
On and around the Schur algebra
Anton Cox
(City U)
Abstract:
Due to the short notice of change of seminar there is currently not an abstract available.
Note: Peter West's seminar previously announced for this day has been postponed to next term.
Due to the short notice of change of seminar there is currently not an abstract available.
Note: Peter West's seminar previously announced for this day has been postponed to next term.
Posted by: CityU
The classification of RCFTs
Terry Gannon
(Hamburg)
Abstract:
The classification of RCFT means different things to different people, but the most accessible, and perhaps the prettiest, aspect of it is the classification of modular invariant (torus) partition functions, which tell you the spectrum of the theory. I'll review the progress made recently on this problem, for the case where the chiral algebras come from affine Kac-Moody algebras (the so-called Wess-Zumino-Witten models). I'll also comment on the classification of cyclindrical partition functions (the
so-called NIM-reps), which are more directly relevant for the framework of Fuchs-Runkel-Schweigert.
The classification of RCFT means different things to different people, but the most accessible, and perhaps the prettiest, aspect of it is the classification of modular invariant (torus) partition functions, which tell you the spectrum of the theory. I'll review the progress made recently on this problem, for the case where the chiral algebras come from affine Kac-Moody algebras (the so-called Wess-Zumino-Witten models). I'll also comment on the classification of cyclindrical partition functions (the
so-called NIM-reps), which are more directly relevant for the framework of Fuchs-Runkel-Schweigert.
Posted by: KCL
Aspects of Gauge - Strings Duality
Carlos Nunez
(Swansea)
Abstract:
I will discuss interesting aspects of the duality of gauge theories and string theories in new scenarios.
I will discuss interesting aspects of the duality of gauge theories and string theories in new scenarios.
Posted by: KCL
Thursday, 2 Mar 2006
Fixing all moduli: Some Geometry
Susanne Reffert
(MPI Munich)
Abstract:
In the moduli stabilization program a la KKLT, the dilaton and the complex structure moduli are
fixed via background 3-form fluxes, whereas the Kaehler moduli are fixed through
non-perturbative effects such as Euclidean D3-brane instantons and gaugino condensation.
After briefly introducing toroidal orbifolds, I will discuss some issues of stability and then
turn to moduli stabilization in resolved toroidal type IIB orientifolds.
The main emphasis will be on the resolution of the singularities via blow-ups, gluing together
the local patches to obtain a smooth Calabi-Yau, and the topologies of the exceptional
divisors.
In the moduli stabilization program a la KKLT, the dilaton and the complex structure moduli are
fixed via background 3-form fluxes, whereas the Kaehler moduli are fixed through
non-perturbative effects such as Euclidean D3-brane instantons and gaugino condensation.
After briefly introducing toroidal orbifolds, I will discuss some issues of stability and then
turn to moduli stabilization in resolved toroidal type IIB orientifolds.
The main emphasis will be on the resolution of the singularities via blow-ups, gluing together
the local patches to obtain a smooth Calabi-Yau, and the topologies of the exceptional
divisors.
Posted by: IC