Matter wave quantum optics with three level quantum emitters

To explore engineered light–matter interactions in novel regimes, our group has recently implemented a versatile platform, in which lattice-trapped atoms and free-propagating matter waves play the roles of emitters and photons, respectively [1,2]. By confining more than one internal atomic state, we realize an effective three-level quantum emitter interacting with a continuum. In this work, we study the three-level emitter’s emission properties, its matter-wave scattering response, and demonstrate quantum storage via control field engineering.