Jiu Chang

1. Indistinguishable photons from an artificial atom in silicon photonics

   L. Komza*, P. Samutpraphoot*, M. Odeh, Y.-L. Tang, M. Mathew, J. Chang, H. Song, M.-K. Kim, Y. Xiong, G. Hautier, A. Sipahigil

   Nature Communications 15, 6920 (2024)

   DOI arXiv BibTeX Abstract

   @article{komza_indistinguishable_2024,
     title = {Indistinguishable photons from an artificial atom in silicon photonics},
     volume = {15},
     url = {https://www.nature.com/articles/s41467-024-51265-1},
     doi = {10.1038/s41467-024-51265-1},
     journal = {Nature Communications},
     number = {1},
     pages = {6920},
     issn = {2041-1723},
     author = {Komza, Lukasz and Samutpraphoot, Polnop and Odeh, Mutasem and Tang, Yu-Lung and Mathew, Milena and Chang, Jiu and Song, Hanbin and Kim, Myung-Ki and Xiong, Yihuang and Hautier, Geoffroy and Sipahigil, Alp},
     month = aug,
     year = {2024},
     arxiv = {2211.09305}
   }
   

   Abstract Silicon is the ideal material for building electronic and photonic circuits at scale. Integrated photonic quantum technologies in silicon offer a promising path to scaling by leveraging advanced semiconductor manufacturing and integration capabilities. However, the lack of deterministic quantum light sources and strong photon-photon interactions in silicon poses a challenge to scalability. In this work, we demonstrate an indistinguishable photon source in silicon photonics based on an artificial atom. We show that a G center in a silicon waveguide can generate high-purity telecom-band single photons. We perform high-resolution spectroscopy and time-delayed two-photon interference to demonstrate the indistinguishability of single photons emitted from a G center in a silicon waveguide. Our results show that artificial atoms in silicon photonics can source single photons suitable for photonic quantum networks and processors.

* Equal contribution