Microwave-to-optics conversion using a mechanical oscillator in its quantum groundstate.

ABSTRACT: Conversion between signals in the microwave and optical domains is of great interest both for classical telecommunication, as well as for connecting future superconducting quantum computers into a global quantum network. For quantum applications, the conversion has to be both efficient, as well as operate in a regime of minimal added classical noise. While efficient conversion has been demonstrated using mechanical transducers, they have so far all operated with a substantial thermal noise background. Here, we overcome this limitation and demonstrate coherent conversion between GHz microwave signals and the optical telecom band with a thermal background of less than one phonon. We use an integrated, on-chip electro-opto-mechanical device that couples surface acoustic waves driven by a reso

SUBMITTER: Forsch M 

PROVIDER: S-EPMC8596963 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature