Making two dysprosium atoms rotate - Einstein-de Haas effect revisited

TL;DR

This paper numerically investigates how two dysprosium atoms in a harmonic trap can exhibit the Einstein-de Haas effect, leading to high orbital angular momentum states under realistic experimental conditions.

Contribution

It demonstrates, through numerical simulations, that two dysprosium atoms can be driven to high angular momentum states via the Einstein-de Haas effect with a simplified interaction model.

Findings

Two dysprosium atoms can reach orbital angular momentum greater than 20.

The Einstein-de Haas effect can be observed in a controlled atomic system.

High angular momentum states are achievable under realistic experimental parameters.

Abstract

We present a numerical study of the behaviour of two magnetic dipolar atoms trapped in a harmonic potential and exhibiting the standard Einstein-de Haas effect while subject to a time dependent homogeneous magnetic field. Using a simplified description of the short range interaction and the full expression for the dipole-dipole forces we show, that under experimentally realisable conditions two dysprosium atoms may be pumped to a high ($l>20$) value of the relative orbital angular momentum.