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arXiv 2203.06280quant-phcond-mat.mes-hall
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ZnSe中空间定域双激子级联光子间的关联

Correlations between cascaded photons from spatially localized biexcitons in ZnSe

Robert M. Pettit, Aziz Karasahin, Nils von den Driesch, Marvin Marco Jansen, Alexander Pawlis, Edo Waks

摘要:

辐射级联发射相关光子对,为纠缠光子的产生提供了途径。因此,半导体中杂质原子的辐射级联的实现是量子光产生的领先平台,将为纠缠光子对源的发展提供新的途径。在这里,我们展示了一个辐射级联的双激子在ZnSe量子阱中的杂质原子复合物的衰变。发射的光子显示出清晰的时间相关性,揭示了级联的时间顺序。我们的研究结果建立了杂质原子在ZnSe作为一个潜在的平台,光子量子技术使用辐射级联。

英文摘要:

Radiative cascades emit correlated photon pairs, providing a pathway for the generation of entangled photons. The realization of a radiative cascade with impurity atoms in semiconductors, a leading platform for the generation of quantum light, would therefore provide a new avenue for the development of entangled photon pair sources. Here we demonstrate a radiative cascade from the decay of a biexciton at an impurity-atom complex in a ZnSe quantum well. The emitted photons show clear temporal correlations revealing the time--ordering of the cascade. Our result establishes impurity atoms in ZnSe as a potential platform for photonic quantum technologies using radiative cascades.

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