Dipolar bosons on an optical lattice ring

TL;DR

This paper investigates how polarized dipolar bosons on a small optical lattice ring exhibit phase transitions influenced by dipole orientation and interaction strength, with potential applications in quantum information.

Contribution

It introduces a detailed analysis of phase transitions in dipolar bosons on a ring lattice, highlighting the effects of dipole polarization and lattice parameters.

Findings

Sharp density wave phase transitions for perpendicular dipoles

First-order like behavior as dipolar interaction strength varies

Transitions sensitive to lattice depth for in-plane polarized dipoles

Abstract

We consider an ultra-small system of polarized bosons on an optical lattice with a ring topology interacting via long range dipole-dipole interactions. Dipoles polarized perpendicular to the plane of the ring reveal sharp transitions between different density wave phases. As the strength of the dipolar interactions is varied the behavior of the transitions is first-order like. For dipoles polarized in the plane of the ring the transitions between possible phases show pronounced sensitivity to the lattice depth. The abundance of possible configurations may be useful for quantum information applications.