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Special Colloquium - Fan Zhang (University of Pennsylvania) "From Topological Insulators to Majorana Fermions"

 Fan Zhang headshot with white background
February 3, 2014
11:30 am - 12:30 pm
1080 Physics Research Building - Smith Seminar Room

Abstract: The discovery of topological insulators has created a revolution in condensed matter science that has far ranging implications over coming decades. I will introduce a simplest way to understand the "periodic table" for topological phases, and apply these ideas to semimetals, insulators, and superconductors. In the superconductor case, a Majorana Kramers pair may appear on the boundary and induces unprecedented fractional Josephson effects. These effects indicate the existence of a "periodic building" for topological phases, with the aforementioned table being its "ground floor". Strong connections will be made to ongoing experiments and related topics.