Dipolar droplets of strongly interacting molecules

TL;DR

This paper uses advanced quantum Monte Carlo simulations to explore self-bound dipolar molecular droplets, revealing new stable states and behaviors beyond traditional mean-field theories, with direct experimental relevance.

Contribution

It introduces a quantum Monte Carlo approach that surpasses mean-field theories to accurately simulate dipolar molecular droplets in strongly interacting regimes.

Findings

Existence of self-bound dipolar droplets

Droplet splitting due to confinement-induced frustration

Identification of small, stable droplets outside known regimes

Abstract

We simulate a molecular Bose-Einstein condensate in the strongly dipolar regime, observing the existence of self-bound droplets, as well as their splitting into multiple droplets by confinement-induced frustration. Our quantum Monte Carlo approach goes beyond the limits of the established effective mean-field theories for dipolar quantum gases, revealing small droplets produced by strong dipolar interactions outside known stable regimes. The simulations include realistic molecular interactions and therefore have direct relevance for current and future experiments.