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Condensed Matter Seminars

ics Condensed Matter
Thursday, February 20, 2014
3:30 PM
Physics Building, Room 204
Note special time.
Note special room.
Fan Zhang [Host: Paul Fendley]
University of Pennsylvania
"From Topological Insulators to Majorana Fermions"
 
 Slideshow (PDF)
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 various topological phases that can fit into an elegant periodic table, and apply these ideas to semimetals, insulators, and superconductors. In the case for a time-reversal-invariant topological superconductor, 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.
SLIDESHOW:

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