Between topological strings and topological phases
April 14, 2017
Jeffrey Teo, Department of Physics, University of Virginia
Topological phases in two and three dimensions can be theoretically constructed by coupled-wire models whose fundamental constituents are electronic channels along strings. On the other hand, the collective topological phases support further fractionalized emergent quasi-string excitations or defects such as flux vortices. In this talk I will describe topological superconductors and Dirac (or Weyl) semimetals using coupled-wire models and discuss the fractional behavior of emergent topological strings.