Figure 1: Schematic and sample.
From: Observation of Dicke superradiance for two artificial atoms in a cavity with high decay rate
(a) Optical equivalent of the setup. Two two-level systems (yellow) are coupled with identical rate g and intrinsic decoherence rate Γnr to a cavity mode with photon decay rate κ (blue). The two-level systems are excited by radiation applied orthogonal to the cavity mode (green). (b,c) Optical microscope false color image of the sample with two qubits (A,B) (yellow) capacitively coupled to an asymmetric waveguide resonator (blue). Each qubit is equipped with a local charge gate (green) and a flux bias line (red) to create initial states and tune transition frequencies independently.
