2015/07/19 by Tzuhsuan Ma, Gennady Shvets · 1 citation
Physics and Astronomy · #physics.optics #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.95.165102
published as Phys. Rev. B 95, 165102 (2017)
arxiv created 2015/07/19 · arxiv updated 2017/04/12
We propose a set of three simple photonic platforms capable of emulating quantum topologically insulating phases corresponding to Hall, spin-Hall, and valley-Hall effects. It is shown that an interface between any two of these heterogeneous photonic topological insulators supports scattering-free surface states. Spin and valley degrees of freedom characterizing such topologically protected surface waves determine their unique pathways through complex photonic circuits comprised of multiple heterogeneous interfaces.