Quantum Phases of Dipolar Bosons in Bilayer Geometry

TL;DR

This paper explores the complex quantum phases of dipolar bosons in a bilayer lattice, revealing a new pair supersolid phase and analyzing superfluid and solid states relevant to current experimental setups.

Contribution

It introduces a novel pair supersolid phase in bilayer dipolar bosons and provides theoretical insights into their many-body behavior.

Findings

Identification of a new pair supersolid phase

Demonstration of superfluid and solid phases coexistence

Relevance to experiments with polar molecules and magnetic atoms

Abstract

We investigate the quantum phases of hard-core dipolar bosons confined to a square lattice in a bilayer geometry. Using exact theoretical techniques, we discuss the many-body effects resulting from pairing of particles across layers at finite density, including a novel pair supersolid phase, superfluid and solid phases. These results are of direct relevance to experiments with polar molecules and atoms with large magnetic dipole moments trapped in optical lattices.