24-28 April 2017
Mainz Institute for Theoretical Physics, Johannes Gutenberg University
Europe/Berlin timezone

Geometry of BPS vortex-antivortex moduli spaces

27 Apr 2017, 15:30
30m
02.430 (Mainz Institute for Theoretical Physics, Johannes Gutenberg University)

02.430

Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Staudingerweg 9 / 2nd floor, 55128 Mainz

Speaker

Dr Nuno Romao (Universität Augsburg)

Description

Gauged nonlinear sigma-models on Riemannian surfaces are self-dual field theories which admit supersymmetric extensions. In contrast with the more familiar gauged *linear* sigma-models, their classical vacua accommodate several types of BPS solitonic particles, described by vortex moduli spaces (supporting Kähler metrics) to which path integrals localise. This leads to some intricate phenomena -- in particular, the moduli spaces typically acquire a boundary corresponding to coalescence of particles of distinct types. In my talk, I will discuss geometric aspects of vortex moduli that relate to the presence of such a boundary, focusing on the simplest model of this sort. (This is joint work with Martin Speight.)

Primary author

Dr Nuno Romao (Universität Augsburg)

Presentation Materials