# Predictive Semiclassical Model for Coherent and Incoherent Emission in the Strong Field Regime: The Mollow Triplet Revisited

## TL;DR

This paper demonstrates that a semiclassical model can accurately reproduce many quantum features of the Mollow triplet, including incoherent emission and sideband behavior, without relying on quantum optical assumptions.

## Contribution

It introduces a semiclassical dynamics approach that predicts quantum effects beyond traditional quantum optical models, especially in strong field regimes.

## Key findings

- Semiclassical model reproduces quantum characteristics of the Mollow triplet.
- Predicts higher order scattering and asymmetric sidebands.
- Highlights minimal computational cost for strong light-matter interactions.

## Abstract

We re-investigate the famous Mollow triplet and show that most of the well-known quantum characteristics of the Mollow triplet--including incoherent emission and a non-standard dependence of the sidebands on detuning--can be recovered quantitatively using semiclassical dynamics with a classical light field. In fact, by not relying on the rotating wave approximation, a semiclassical model predicts some quantum effects beyond the quantum optical Bloch equation, including higher order scattering and asymmetric sideband features. This letter highlights the fact that, with strong intensities, many putatively quantum features of light-matter interactions arise from a simple balance of mean-field electrodynamics and elementary spontaneous emission which requires minimal computational cost. Our results suggest that the application of semiclassical electrodynamics to problems with strong light-matter coupling in the fields of nanophotonics and superradiance are likely to yield a plethora of new information.