The paper shows that polariton Chern bands with Chern numbers up to 2 and topological gaps over 10 meV can be realized in 2D photonic crystals using bound states in the continuum or quadratic-touching bands instead of Dirac cones.
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Polariton Chern Bands in 2D Photonic Crystals Beyond Dirac Cones
The paper shows that polariton Chern bands with Chern numbers up to 2 and topological gaps over 10 meV can be realized in 2D photonic crystals using bound states in the continuum or quadratic-touching bands instead of Dirac cones.