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quant-ph2023★ 3 cited
Alternating quantum-emitter chains: Exceptional-point phase transition, edge state, and quantum walks
Jimin Li, Zongping Gong
We study the long-range hopping limit of a one-dimensional array of equal-distanced quantum emitters in free space, where the hopping amplitude of emitter excitation is proport…
quant-ph2023★ 34 cited
Hermitian and Non-Hermitian Topology from Photon-Mediated Interactions
Federico Roccati, Miguel Bello, Zongping Gong +4
Light can mediate effective dipole-dipole interactions between atoms or quantum emitters coupled to a common environment. Exploiting them to tailor a desired effective Hamiltonian…