Photonic topological pump between chiral disclination states
Bi-Ye Xie, Oubo You, Shuang Zhang
Abstract
Topological pump describes the quantized transport of charges (or particles) in the absence of a net external electric or magnetic field. Here the authors show that topological pumps can happen between disclination states with different chiralities in a distorted lattice. By constructing structures with one and two disclination cores, they achieve topological pumping both within a single disclination core and between different disclination cores.
Topics & Concepts
DisclinationTopology (electrical circuits)Topological defectElectric fieldTopological quantum numberLattice (music)PhysicsCondensed matter physicsLiquid crystalQuantum mechanicsMathematicsCombinatoricsAcousticsTopological Materials and PhenomenaTerahertz technology and applicationsQuantum and electron transport phenomena