Bosonic and fermionic dipoles on a ring

Abstract

We show that dipolar bosons and fermions confined in a quasi-one-dimensional ring trap exhibit a rich variety of states because their interaction is inhomogeneous. For purely repulsive interactions, with increasing strength of the dipolar coupling there is a crossover from a gas-like state to an inhomogeneous crystal-like one. For small enough angles between the dipoles and the plane of the ring, there are regions with attractive interactions, and clustered states can form.

4 pages, 6 figures

References in corpus (11)

• A High Phase-Space-Density Gas of Polar Molecules
• Strong dipolar effects in a quantum ferrofluid
• Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
• Stabilizing a purely dipolar quantum gas against collapse
• Imaging the Mott Insulator Shells using Atomic Clock Shifts
• Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules
• Dipolar gases in quasi one-dimensional geometries
• Controlling a magnetic Feshbach resonance with laser light
• Quantum phases of a Two-Dimensional Dipolar Fermi Gas
• Evidence of Luttinger liquid behavior in one-dimensional dipolar quantum gases
• Ultracold Few-Boson Systems in a Double-Well Trap