Seminar at 11:30am April 18th CMT Seminar - Lukasz Fidkowski, Monday, April 18th, 11:30am, 1080 Smith Seminar Room

[Robbins, Eric]

Please join us on Monday, April 18th at 11:30am for the Condensed Matter Theory Seminar presented by Lukasz Fidkowski in room 1080PRB Smith Seminar Room.
" Symmetry Protected Topological Phases of fermions   "
Abstract: Topological insulators constitute a different phase of quantum matter from ordinary insulators, despite not breaking any symmetries.  They are an example of a `symmetry protected topological' phase, in that they exhibit exotic phenomena, namely gapless surface modes, that are entirely protected by time reversal symmetry.  Motivated by this, one can classify all possible non-trivial topological insulators in all dimensions and symmetry classes at the level of band structures.  However, the role of interactions in this scheme is still not completely understood.  In this talk I'll describe our recent work on classifying interacting analogues of topological insulators, and constructing exactly solvable lattice realizations of them, which may allow them to be targeted by numerical algorithms.
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