From few- to many-body physics: Strongly dipolar molecular Bose-Einstein condensates and quantum fluids

TL;DR

This paper discusses the recent progress and future prospects of strongly dipolar molecular Bose-Einstein condensates, highlighting their potential to reveal new many-body quantum phenomena.

Contribution

It analyzes achievable experimental regimes, proposes implementation strategies, and extends theoretical models to strongly dipolar molecular BECs.

Findings

Identification of feasible parameter regimes with current techniques

Proposal of molecular species suitable for exploring exotic states

Extension of beyond mean-field theories to strongly dipolar systems

Abstract

Recent advances in molecular cooling have enabled the realization of strongly dipolar Bose-Einstein condensates (BECs) of molecules, and BECs of many different molecular species may become experimentally accessible in the near future. Here, we explore the unique properties of such BECs and the new insights they may offer into dipolar quantum fluids and many-body physics. We explore which parameter regimes can realistically be achieved using currently available experimental techniques, discuss how to implement these techniques, and outline which molecular species are particularly well suited to explore exotic new states of matter. We further determine how state-of-the-art beyond mean-field theories, originally developed for weakly dipolar magnetic gases, can be pushed to their limits and beyond, and what other long-standing questions in the field of dipolar physics may realistically come within reach using molecular systems.