Few-photon SUPER : Quantum emitter inversion via two off-resonant photon modes

Titelangaben

Richter, Quentin W. ; Kaspari, Jan M. ; Bracht, Thomas K. ; Yatsenko, Leonid ; Axt, Vollrath Martin ; Rauschenbeutel, Arno ; Reiter, Doris E.:
Few-photon SUPER : Quantum emitter inversion via two off-resonant photon modes.
In: Physical Review Research. Bd. 7 (2025) . - 013079.
ISSN 2643-1564
DOI: https://doi.org/10.1103/PhysRevResearch.7.013079

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Abstract

With 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.