Reimar Lüst Lecture -Prof. Charles Kane: Symmetry, topology and electronic phases of matter
14:00 - 16:00
University of Pennsylvania, USA
CFEL (Bldg. 99)
Seminar Room I-III, Foyer
Symmetry and topology are two of the conceptual pillars that underlie our understanding of matter. While both ideas are old, over the past several years a new appreciation of their interplay has led to dramatic progress in our understanding of topological electronic phases. A paradigm that has emerged is that insulating electronic states with an energy gap fall into distinct topological classes.
between different topological phases exhibit gapless conducting states that are
protected and are impossible to get rid of. In this talk we will discuss the
application of this idea to the quantum Hall effect, topological insulators,
topological semimetals and topological superconductors. The latter case has led to the quest for
observing Majorana fermions in condensed matter, which opens the door to
proposals for topological quantum computation.
We will close by surveying the frontier of topological phases in the
presence of strong interactions.