Collective super- and subradiant dynamics between distant optical quantum emitters
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Photon emission is the hallmark of light-matter interaction and the foundation of photonic quantum science, enabling advanced sources for quantum communication and computing. Although single-emitter radiation can be tailored by the photonic environment, the introduction of multiple emitters extends this picture. A fundamental challenge, however, is that the radiative dipole-dipole coupling rapidly decays with spatial separation, typically within a fraction of the optical wavelength. We realize distant dipole-dipole radiative coupling with pairs of solid-state optical quantum emitters embedded in a nanophotonic waveguide. We dynamically probe the collective response and identify both super- and subradiant emission as well as means to control the dynamics by proper excitation techniques. Our work constitutes a foundational step toward multiemitter applications for scalable quantum-information processing.
|Udgivet - 2023
The authors thank X.-L. Chu for fruitful discussions at the beginning of the project. We gratefully acknowledge financial support from Danmarks Grundforskningsfond (DNRF 139, Hy-Q Center for Hybrid Quantum Networks). B.S. acknowledges financial support from Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), grant no. 449674892. O.A.D.S. acknowledges funding from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement no. 801199. S.S., A.L., and A.D.W. acknowledge financial support of the German-French University DFH/UFA within the CDFA-05-06 as well as BMBF QR.X project 16 KISQ 009.
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