Abstract
Placing an ensemble of ultracold atoms in the near field of a superconducting coplanar waveguide resonator with a quality factor , one can achieve strong coupling between a single microwave photon in the coplanar waveguide resonator and a collective hyperfine qubit state in the ensemble with larger than the cavity linewidth of . Integrated on an atomchip, such a system constitutes a hybrid quantum device, which also can be used to interconnect solid-state and atomic qubits, study and control atomic motion via the microwave field, observe microwave superradiance, build an integrated micromaser, or even cool the resonator field via the atoms.
- Received 12 September 2008
DOI:https://doi.org/10.1103/PhysRevLett.103.043603
©2009 American Physical Society