Year: 2022
Type: article
Abstract: The realization of a scalable architecture for quantum information processing is a major challenge for quantum science.A promising approach is based on emitters in nanostructures that are coupled by light.Here, we show that erbium dopants can be reproducibly integrated at well-defined lattice sites by implantation into pure silicon.We thus achieve a narrow inhomogeneous broadening, less than 1 GHz, strong optical transitions, and an outstanding optical coherence even at temperatures of 8 K, with an upper bound to the homogeneous linewidth of around 10 kHz.Our study thus introduces a promising materials platform for the implementation of on-chip quantum memories, microwave-to-optical conversion, and distributed quantum information processing.
Source: Physical Review X
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,200
OpenAlex ID: W3187280299