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Inelastic Scattering of Photon Pairs in Qubit Arrays with Subradiant States

Ke, Yongguan; Poshakinskiy, Alexander V.; Lee, Chaohong; Kivshar, Yuri; Poddubny, Alexander


We develop a rigorous theoretical approach for analyzing inelastic scattering of photon pairs in arrays of two-level qubits embedded into a waveguide. Our analysis reveals a strong enhancement of the scattering when the energy of incoming photons resonates with the double-excited subradiant states. We identify the role of different double-excited states in the scattering, such as superradiant, subradiant, and twilight states, as a product of single-excitation bright and subradiant states....[Show more]

CollectionsANU Research Publications
Date published: 2019-12-19
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.123.253601
Access Rights: Open Access


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