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Researchers have demonstrated high-efficiency quantum light emission from zinc selenide impurities, achieving a Debye-Waller factor of 0.94 which is critical for solid-state spin qubit applications. The study further reveals unique temporal dynamics in ionization processes that enable precise control over single-photon nonlinear optics at the low photon number regime. This advancement represents a significant step toward practical quantum light sources and refined models for impurity behavior in semiconductor materials.

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Bright quantum light emitted from a single zinc selenide impurity

Quantum ZeitgeistAugust 14, 20262 min read

Researchers achieved bright quantum emission from a single impurity-bound exciton in ZnSe, a promising material for solid-state spin qubits.

Researchers at the University of Maryland and Forschungszentrum Jülich have demonstrated coherent quantum light emission from a single impurity-bound exciton in zinc selenide. The work reports a Debye-Waller factor of 0.94, indicating a high efficiency…

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