Design for telecom-wavelength quantum emitters in silicon based on alkali-metal-saturated vacancy complexes

• URL: http://arxiv.org/abs/2409.10746v1
• Date: Mon, 16 Sep 2024 21:28:13 GMT
• Title: Design for telecom-wavelength quantum emitters in silicon based on alkali-metal-saturated vacancy complexes
• Authors: Péter Udvarhelyi, Prineha Narang,
• Abstract summary: Defect emitters in silicon are promising contenders as building blocks of solid-state quantum repeaters and sensor networks. We show that the identification of key physical effects on quantum defect state localization can guide the search for telecom wavelength emitters.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Defect emitters in silicon are promising contenders as building blocks of solid-state quantum repeaters and sensor networks. Here we investigate a family of possible isoelectronic emitter defect complexes from a design standpoint. We show that the identification of key physical effects on quantum defect state localization can guide the search for telecom wavelength emitters. We demonstrate this by performing first-principles calculations on the Q center, predicting its charged sodium variants possessing ideal emission wavelength near the lowest-loss telecom bands and ground state spin for possible spin-photon interface and nanoscale spin sensor applications yet to be explored in experiments.

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