Gauge theories for strongly interacting systems - from topology to geometry
by
Prof.Hans Hannson(NORDITA, Stockholm)
→
Europe/Rome
conference room
conference room
Description
Many topological states of matter can be described by topological field
theories of the Chern-Simons type. Moving away from the topological scaling
limit amounts to adding metric, and scale dependent parts, such as Maxwell
terms, to the effective action. In this way one can incorporate
non-topological effects such as vortex sizes, penetration lengths and
plasmons in the effective theory. I illustrate this with examples from the
quantum Hall effect and superconductivity
