Triangle Seminars
Wednesday, 7 May 2014
The fermionic basis in sin(h)-Gordon model
📍 London
Stefano Negro
(Durham and Turin)
Abstract:
Recently a powerful approach to the computation of one-point functions in the quantum XXZ spin 1/2 chain has been proposed by Boos, Jimbo, Miwa and Smirnov; this framework relies on the existence of a particular basis in the state space of the theory: the fermionic basis. I will present the construction of these fermions for the scaling limit of inhomogeneous XXZ spin 1/2 chain, the sine-Gordon model, and for its twin, the sinh-Gordon model. If time allows it, I will briefly present a possible interpretation of the fermionic basis and one-point functions in terms of the action of a modified version of the sinh-Gordon model.
Recently a powerful approach to the computation of one-point functions in the quantum XXZ spin 1/2 chain has been proposed by Boos, Jimbo, Miwa and Smirnov; this framework relies on the existence of a particular basis in the state space of the theory: the fermionic basis. I will present the construction of these fermions for the scaling limit of inhomogeneous XXZ spin 1/2 chain, the sine-Gordon model, and for its twin, the sinh-Gordon model. If time allows it, I will briefly present a possible interpretation of the fermionic basis and one-point functions in terms of the action of a modified version of the sinh-Gordon model.
Posted by: KCL
Thursday, 8 May 2014
New results on AdS black holes
Dietmar Klemm
(Milano 1)
Abstract:
We give a survey on recent results on the physics of black
holes in four-dimensional anti-de Sitter space. In particular, we present a general recipe for constructing rotating black holes in N=2 matter-coupled gauged supergravity. Several physical aspects of these solutions are discussed, like their thermodynamics and dual hydrodynamical interpretation. It turns out that there
exist new exotic black holes whose horizon is a noncompact manifold with finite volume. Finally, we show how to construct multi-centered black hole solutions in anti-de Sitter space.
We give a survey on recent results on the physics of black
holes in four-dimensional anti-de Sitter space. In particular, we present a general recipe for constructing rotating black holes in N=2 matter-coupled gauged supergravity. Several physical aspects of these solutions are discussed, like their thermodynamics and dual hydrodynamical interpretation. It turns out that there
exist new exotic black holes whose horizon is a noncompact manifold with finite volume. Finally, we show how to construct multi-centered black hole solutions in anti-de Sitter space.
Posted by: IC
Holographic anyonic superfluidity
Matthew Lippert
(Amsterdam U.)
Abstract:
This talk will be about an unusual type of superfluid, one made up of anyons. I will discuss anyons, their relation to the quantum Hall effect, and how an anyonic superfluid is unlike a typical superfluid. Then I will describe a holographic model of a strongly-coupled anyonic superfluid and the stability of its supercurrents.
This talk will be about an unusual type of superfluid, one made up of anyons. I will discuss anyons, their relation to the quantum Hall effect, and how an anyonic superfluid is unlike a typical superfluid. Then I will describe a holographic model of a strongly-coupled anyonic superfluid and the stability of its supercurrents.
Posted by: QMW
Friday, 9 May 2014
On M5 branes
Kimyeong Lee
(KIAS)
Quiver Gauge Theories and the Moduli Space of Instantons
Amihay Hanany
(Imperial)
Abstract:
Instantons appear in many problems of theoretical physics.
Quiver gauge theories are a rising subject due to its natural emergence in perturbative open string theories.
The talk will discuss features of these two topics and how one can use quiver gauge theories to solve the long standing problem of finding the moduli space of k G instantons on C^2, where G is any simple gauge group, including the non-simply laced cases.
Instantons appear in many problems of theoretical physics.
Quiver gauge theories are a rising subject due to its natural emergence in perturbative open string theories.
The talk will discuss features of these two topics and how one can use quiver gauge theories to solve the long standing problem of finding the moduli space of k G instantons on C^2, where G is any simple gauge group, including the non-simply laced cases.
Posted by: KCL