Interfacing Rydberg atoms with a chip-based superconducting microwave resonator using an ac-Stark-shifted single-photon transition

L. L. Brown, I. K. Bhangoo, S. D. Hogan

Helium atoms in the 1s50s${}^3$S${}_1$ Rydberg level have been resonantly coupled to the $2\pi \times 11.722$ GHz second harmonic mode of a chip-based superconducting coplanar waveguide…