Autoionizing polaritons with the Jaynes-Cummings model

TL;DR

This paper extends the Jaynes-Cummings model to autoionizing states, enabling the study and control of autoionizing polaritons formed by intense laser coupling, with implications for manipulating ionization processes.

Contribution

An extended Jaynes-Cummings model for autoionizing states is developed, accurately capturing the formation and control of autoionizing polaritons.

Findings

Extended model reproduces observed polariton phenomena

Laser parameters can tune ionization rates

Extended polariton lifetimes due to interference effects

Abstract

Intense laser pulses have the capability to couple resonances in the continuum, leading to the formation of a split pair of autoionizing polaritons. These polaritons can exhibit extended lifetimes due to interference between radiative and Auger decay channels. In this work, we show how an extension of the Jaynes-Cummings model to autoionizing states quantitatively reproduces the observed phenomenology. This extended model allows us to study how the dressing laser parameters can be tuned to control the ionization rate of the polariton multiplet.