Figure 1
APS/Alan Stonebraker

Figure 1: The Rabi model describes the simplest interaction between quantum light and matter. The model considers a two-level atom coupled to a quantized, single-mode harmonic oscillator (in the case of light, this could be a photon in a cavity, as depicted in the figure). The model applies to a variety of physical systems, including cavity quantum electrodynamics, the interaction between light and trapped ions or quantum dots, and the interaction between microwaves and superconducting qubits.