Bundle gerbes for topological insulators. Minicourse. Part 2. (Krzysztof Gawedzki, Lyon)

08.10.2015 10:15

Bundle gerbes are simple examples of higher geometric structures that showed their utility in dealing with topological subtleties of physical theories. I will review a recent construction of torsion topological invariants of condensed matter systems via equivariant bundle gerbes. The construction covers as well static systems in 2 and 3 dimensions as periodically forced ones. It involves refinements of geometry of gerbes that will be discussed in the first lecture, the second one being devoted to the applications to topological insulators.

Lieu

Bâtiment: Villa Battelle

Séminaire "Groupes de Lie et espaces des modules"

entrée libre