Strongly interacting ultracold polar molecules

TL;DR

This review discusses recent progress in creating and understanding strongly interacting ultracold polar molecules, highlighting their potential for quantum simulation and many-body physics due to their tunable long-range dipole interactions.

Contribution

It provides a comprehensive overview of experimental advances in realizing strongly interacting dipolar molecules and their applications in quantum simulation and non-equilibrium quantum magnetism.

Findings

Progress in trapping polar molecules in optical lattices

Observation of interacting spin systems

Insights into non-equilibrium quantum magnetism

Abstract

This paper reviews recent advances in the study of strongly interacting systems of dipolar molecules. Heteronuclear molecules feature large and tunable electric dipole moments, which give rise to long-range and anisotropic dipole-dipole interactions. Ultracold samples of dipolar molecules with long-range interactions offer a unique platform for quantum simulations and the study of correlated many-body physics. We provide an introduction to the physics of dipolar quantum gases, both electric and magnetic, and summarize the multipronged efforts to bring dipolar molecules into the quantum regime. We discuss in detail the recent experimental progress in realizing and studying strongly interacting systems of polar molecules trapped in optical lattices, with particular emphasis on the study of interacting spin systems and non-equilibrium quantum magnetism. Finally, we conclude with a brief discussion of the future prospects for studies of strongly interacting dipolar molecules.