25–28 Sept 2012
DESY Hamburg
Europe/Berlin timezone

Light-cone lattice from the universal R-matrix

26 Sept 2012, 16:50
20m
Seminar room 1 (DESY)

Seminar room 1

DESY

Speaker

Dr carlo Meneghelli (Fachbereich Mathematik uni hamburg and DESY)

Description

I will discuss a systematic approach to the construction of lattice regularizations of a certain class of 1+1 dimensional integrable quantum field theories. The method is based on the identification of the relevant algebraic structure combined with a systematic analysis of its representations. I will focus on the example of affine Toda theories. Remarkable factorization/fusion properties of some degenerate representations of the underlying quantum affine algebra are connected to the separation/recombination of left- and right-movers in 1+1 dimensional conformal field theory. I will present a derivation of the so called quantum discrete-time evolution equations on a light-cone lattice for affine Toda theories. I will conclude with some considerations on the construction of Baxter's Q-operators for these models.

Primary author

Dr carlo Meneghelli (Fachbereich Mathematik uni hamburg and DESY)

Presentation materials