Page 03/30/2017 15:01:46

Paper accepted by Phys. Rev. A

3/28/2017
‚ÄčIn this paper, we discussed multiple topological phase transitions in a simple photonic crystal.  We found the edge states are protected by the topological invariants, spin Chern number, and demonstrated robust one-way propagation of a single helical edge state that are immune to magnetic impurities.