Exceptional topological defects in atomic arrays can survive strong magnetic fields due to light-cone singularities in photon-mediated interactions, enabling novel control of band topology through lattice geometry and external magnetic control.

#QuantumTopology #AtomicArrays #Research

Bilayer atomic arrays enable efficient quantum light-matter interfaces beyond Bragg symmetry, using destructive interference to suppress diffraction losses and enabling novel memory schemes via tunable interlayer spacing.

#QuantumInterfaces #AtomicArrays #QuantumMemory

New QED framework using 4th-order perturbation theory derives tunable Casimir-Polder shifts on excited atoms near 2D atomic arrays, revealing asymptotic scaling laws controllable via lattice spacing, dipole orientation, and array size.

#CasimirPolder #AtomicArrays #QuantumVacuum