Entangling microwaves with light

Check out our new article in Science (open access reprint).

Editor’s summary: Several platforms are under development for quantum computation, simulation, and metrology applications, with each platform operating at different operational wavelengths for optimized performance. For practical technologies, the reality will likely be a hybrid of platforms that require quantum entanglement to be generated and shared across platforms with a large energy disparity. Sahu et al. introduce an electro-optical device that allows the generation of quantum entanglement between microwaves (the operational wavelengths of superconducting circuits) with optical photons (the operational wavelength of long-distance quantum communication). Bridging platforms with more than five orders of magnitude difference in energy scales and maintaining the fragile entanglement provides a route to efficiently linking up hybrid quantum systems. — Ian S. Osborne

More info on the ISTA website: “Wiring up Quantum Circuits with Light