Correlations between cascaded photons from spatially localized biexcitons in ZnSe

• URL: http://arxiv.org/abs/2203.06280v1
• Date: Fri, 11 Mar 2022 23:15:37 GMT
• Title: Correlations between cascaded photons from spatially localized biexcitons in ZnSe
• Authors: Robert M. Pettit, Aziz Karasahin, Nils von den Driesch, Marvin Marco Jansen, Alexander Pawlis, Edo Waks
• Abstract summary: We demonstrate a radiative cascade from the decay of a biexciton at an impurity-atom complex in aSe quantum well. Our result establishes impurity atoms inSe as a potential platform for photonic quantum technologies using radiative cascades.
• Score: 55.41644538483948
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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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