Adiabatic passage through chaos

TL;DR

This paper investigates how nonlinear stimulated Raman adiabatic passage behaves in a classical mean-field system, revealing that quasistochastic motion, rather than bifurcations, causes breakdown of adiabaticity, and faster parameter sweeps improve adiabaticity.

Contribution

It uncovers the role of quasistochastic motion in adiabatic breakdown and shows that faster sweeps can enhance adiabaticity in nonlinear systems.

Findings

Breakdown of adiabaticity linked to quasistochastic motion

Faster sweep rates improve adiabaticity

Adiabatic passage behavior depends on interaction sign

Abstract

We study the process of nonlinear stimulated Raman adiabatic passage within a classical mean-fieldframework. Depending on the sign of interaction, the breakdown of adiabaticity in the interactingnonintegrable system is not related to bifurcations in the energy landscape, but rather to the emergence ofquasistochastic motion that drains the followed quasistationary state. Consequently, faster sweep rate,rather than quasistatic variation of parameters, is better for adiabaticity