952 citations · 3k across the 18 of their papers we have counts for
4 papers · 1 filter
Composite Dirac liquids: parent states for symmetric surface topological order
David F. Mross, Andrew Essin, Jason Alicea
We introduce exotic gapless states---`composite Dirac liquids'---that can appear at a strongly interacting surface of a three-dimensional electronic topological insulator. Composit…
Delocalization of boundary states in disordered topological insulators
A. Essin, V. Gurarie
We use the method of bulk-boundary correspondence of topological invariants to show that disordered topological insulators have at least one delocalized state at their boundary at…
Numerical detection of symmetry enriched topological phases with space group symmetry
Ling Wang, Andrew Essin, Michael Hermele +1
Topologically ordered phases of matter, in particular so-called symmetry enriched topological (SET) phases, can exhibit quantum number fractionalization in the presence of global s…
Spectroscopic signatures of crystal momentum fractionalization
Andrew M. Essin, Michael Hermele
We consider gapped Z2 spin liquids, where spinon quasiparticles may carry fractional quantum numbers of space group symmetry. In particular, spinons can carry fractional crystal mo…