Photon-mediated interactions between quantum systems are essential for realizing quantum networks and scalable quantum information processing. We demonstrate such interactions between pairs of silicon-vacancy (SiV) color centers coupled to a diamond nanophotonic cavity. When the optical transitions of the two color centers are tuned into resonance, the coupling to the common cavity mode results in a coherent interaction between them, leading to spectrally-resolved superradiant and subradiant states. We use the electronic spin degrees of freedom of the SiV centers to control these optically-mediated interactions. Such controlled interactions will be crucial in developing cavity-mediated quantum gates between spin qubits and for realizing scalable quantum network nodes.
Evans, R. E., et al. "Photon-mediated interactions between quantum emitters in a diamond nanocavity." Science, vol. 362, no. 6415, Sep. 2018. https://doi.org/10.1126/science.aau4691
Evans, R. E., Bhaskar, M. K., Sukachev, D. D., Nguyen, C. T., Sipahigil, A., Burek, M. J., Machielse, B., Zhang, G. H., Zibrov, A. S., Bielejec, E., Park, H., Lončar, M., & Lukin, M. D. (2018). Photon-mediated interactions between quantum emitters in a diamond nanocavity. Science, 362(6415). https://doi.org/10.1126/science.aau4691
Evans, R. E., Bhaskar, M. K., Sukachev, D. D., et al., "Photon-mediated interactions between quantum emitters in a diamond nanocavity," Science 362, no. 6415 (2018), https://doi.org/10.1126/science.aau4691
@article{osti_1478067,
author = {Evans, R. E. and Bhaskar, M. K. and Sukachev, D. D. and Nguyen, C. T. and Sipahigil, A. and Burek, M. J. and Machielse, B. and Zhang, G. H. and Zibrov, A. S. and Bielejec, E. and others},
title = {Photon-mediated interactions between quantum emitters in a diamond nanocavity},
annote = {Photon-mediated interactions between quantum systems are essential for realizing quantum networks and scalable quantum information processing. We demonstrate such interactions between pairs of silicon-vacancy (SiV) color centers coupled to a diamond nanophotonic cavity. When the optical transitions of the two color centers are tuned into resonance, the coupling to the common cavity mode results in a coherent interaction between them, leading to spectrally-resolved superradiant and subradiant states. We use the electronic spin degrees of freedom of the SiV centers to control these optically-mediated interactions. Such controlled interactions will be crucial in developing cavity-mediated quantum gates between spin qubits and for realizing scalable quantum network nodes.},
doi = {10.1126/science.aau4691},
url = {https://www.osti.gov/biblio/1478067},
journal = {Science},
issn = {ISSN 0036-8075},
number = {6415},
volume = {362},
place = {United States},
publisher = {AAAS},
year = {2018},
month = {09}}