BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Alexander Sirota\, UVA-Department of Physics\n\n
Fractional t opological insulators (FTI) are electronic topological phases in (3 + 1) d imensions enriched by time reversal (TR) and charge U(1) conservation symm etries. We focus on the simplest series of fermionic FTI\, whose bulk quas iparticles consist of decon ned partons that \; carry fractional elect ric charges in integral units of e = e=(2n + 1) and couple to a discrete Z 2n+1 gauge theory. We propose massive \; symmetry preserving or breaki ng FTI surface states. Combining the long-ranged entangled bulk with these topological surface states\, we \; deduce the novel topological order of quasi-(2 + 1) dimensional FTI slabs as well as their corresponding edg e conformal eld theories. We will also describe some past work on coupled wire constructions of Weyl/Dirac \;semimetals\, and some new work abou t mechanical topology and conformal field theory.
\n DTSTART:20170426T210000Z LOCATION:Physics Building\, Room 313 SUMMARY:Surfaces and Slabs of Fractional Topological Insulators END:VEVENT END:VCALENDAR