Radiative topological biphoton states in modulated qubit arrays
Yongguan Ke, Janet Zhong, A. V. Poshakinskiy, Yuri S. Kivshar, Alexander N. Poddubny, Chaohong Lee
Abstract
This paper uncovers radiative topological biphoton states in a spatially-modulated qubit array coupled to a waveguide. The topology originates from nontrivial bound-state bands which are characterized by the Chern number in the parameter space created by the center-of-mass momentum and modulation phase being a synthetic dimension.
Topics & Concepts
PhysicsBound stateQubitSuperlatticeTopology (electrical circuits)PhotonQuantum mechanicsPolaritonUpper and lower boundsQuantumCondensed matter physicsMathematicsMathematical analysisCombinatoricsTopological Materials and PhenomenaQuantum Mechanics and Non-Hermitian PhysicsCold Atom Physics and Bose-Einstein Condensates