From optical lattices to quantum crystals

TL;DR

This paper explores how strong intersite interactions in optical lattices can lead to various self-organized lattice states, including quantum crystals, revealing new phases of matter in cold atom systems.

Contribution

It introduces the concept of quantum crystal formation in optical lattices driven by strong intersite interactions, expanding the understanding of phase transitions in cold atom systems.

Findings

Identification of multiple lattice states including quantum crystals

Demonstration of phase transitions driven by intersite interactions

Insight into self-organization phenomena in optical lattices

Abstract

Optical lattices can be loaded with atoms which can have strong interactions, such that the interaction of atoms at different lattice sites cannot be neglected. Moreover, the intersite interactions can be so strong that it can force the atoms to form a self-organized lattice, such that exists in crystals. With increasing intersite interactions, there can appear several lattice states, including conducting optical lattices, insulating optical lattices, delocalized quantum crystals, and localized quantum crystals.