Richter, Quentin W.Kaspari, Jan M.Bracht, Thomas K.Yatsenko, LeonidAxt, Vollrath MartinRauschenbeutel, ArnoReiter, Doris E.2025-02-062025-02-062025-01-21http://hdl.handle.net/2003/4343510.17877/DE290R-25266With the realization of controlled quantum systems, exploring excitations beyond the resonant case opens new possibilities. We investigate an extended Jaynes-Cummings model in which two nondegenerate photon modes are coupled off resonantly to a quantum emitter. This allows us to identify few-photon scattering mechanisms that lead to a full inversion of the emitter while transferring off-resonant photons from one mode to another. This behavior is connected to recent measurements of a two-level emitter scattering two off-resonant photons simultaneously. Furthermore, our results can be understood as a quantized analog of the recently developed off-resonant quantum control scheme known as swing-up of quantum emitter (SUPER). Our intuitive formalism gives deeper insight into the interaction of a two-level emitter with off-resonant light modes with the prospect of novel photonic applications.enPhysical review research; 7(1)https://creativecommons.org/licenses/by/4.0/Integrated opticsQuantum communication, protocols & technologyQuantum controlQuantum optics with artificial atomsSingle photon sourcesJaynes-Cummings model530Article