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Quantum phase modulation with acoustic cavities and quantum dots



Poolad Imany, Zixuan Wang, Ryan DeCrescent, Robert Boutelle, Corey McDonald, Travis Autry, Samuel Berweger, Pavel Kabos, Sae Woo Nam, Richard Mirin, Kevin L. Silverman


Fast, efficient, and low-power modulation of light at microwave frequencies is crucial for chip-scale classical and quantum processing as well as for long-range networks of superconducting quantum processors. A successful approach to bridge the gap between microwave and optical photons has been to use intermediate platforms, such as acoustic waves, that couple efficiently to a variety of quantum systems. Here, we use gigahertz-frequency focusing surface acoustic wave cavities on GaAs that are piezo-electrically coupled to superconducting circuits and parametrically coupled, via strain, to photons scattered from InAs quantum dots. We demonstrate modulation of single photons with a half-wave voltage as low as 44 mV, and subnatural modulation sideband linewidths. These demonstrations pave the way for efficient and low-noise transduction of quantum information between microwave and optical domains.


Quantum transduction, quantum networks, quantum optics, surface acoustic waves, quantum dots


Imany, P. , Wang, Z. , DeCrescent, R. , Boutelle, R. , McDonald, C. , Autry, T. , Berweger, S. , Kabos, P. , Nam, S. , Mirin, R. and Silverman, K. (2022), Quantum phase modulation with acoustic cavities and quantum dots, Optica, [online],, (Accessed July 19, 2024)


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Created April 29, 2022, Updated February 9, 2023