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

TL;DR

This paper explores a novel off-resonant quantum control scheme using an extended Jaynes-Cummings model, enabling full emitter inversion through two off-resonant photon modes, with potential for advanced photonic applications.

Contribution

It introduces a quantized analogue of the SUPER scheme within an extended Jaynes-Cummings model, revealing new mechanisms for emitter inversion via off-resonant photon interactions.

Findings

Demonstrates full emitter inversion using off-resonant photon modes.

Provides a formalism for understanding off-resonant photon-emitter interactions.

Connects theoretical results with recent experimental observations.

Abstract

With the realization of controlled quantum systems, exploring excitations beyond the resonant case opens new possibilities. We investigate an extended Jaynes-Cummings model where two 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 behaviour connects to recent measurements of a two-level emitter scattering two off-resonant photons simultaneously. Furthermore, our results can be understood as quantized analogue of the recently developed off-resonant quantum control scheme known as Swing-UP of quantum EmitteR (SUPER). Our intuitive formalism gives a deeper insight into the interaction of a two-level emitter with off-resonant light modes with the prospect of novel photonic applications.