Parity Anomaly and Landau-Level Lasing in Strained Photonic Honeycomb Lattices
Parity Anomaly and Landau-Level Lasing in Strained Photonic Honeycomb Lattices
We describe the formation of highly degenerate, Landau-level-like amplified states in a strained photonic honeycomb lattice in which amplification breaks the sublattice symmetry. As a consequence of the parity anomaly, the zeroth Landau level is localized on a single sublattice and possesses an enhanced or reduced amplification rate. The selection …