Event

Talk
Loop operators in four dimensional gauge theories, the classification of curves on Riemann surfaces and Liouville theory
Dr. Nadav Drukker
10 Nov 2009, 16:00 – 17:00

A large family of four dimensional supersymmetric gauge theories was recently constructed by compactifying a six dimensional theory on a Riemann surface. The couplings of the gauge theory are in one-to-one correspondence with the complex moduli of the Riemann surface. In particular, degenerate surfaces lead to weakly coupled gauge theories. In this talk I will address the question of classifying supersymmetric loop operators (Wilson, 't Hooft and dyonic) in the gauge theory, and its relation to the classification of curves on the Riemann surface and the Dehn-Thurston theorem. I will also comment on the evaluation of the expectation value of the loop operators, which can be done by studying Liouville theory, or quantum Teichmüller theory on the surface.

Standort: : http://www.ub.hu-berlin.de/ueber-uns/standorte/jacob-und-wilhelm-grimm-zentrum/standort-im-stadtplan

Related to:

• Nadav Drukker
• Winter Term 2009/10