Quantum phases of hard-core dipolar bosons in coupled 1D optical lattices

Abstract

Hard-core dipolar bosons trapped in a parallel stack of N>=2 1D optical lattices (tubes) can develop several phases made of composites of particles from different tubes: superfluids, supercounterfluids and insulators as well as mixtures of those. Bosonization analysis shows that these phases are threshold-less with respect to the dipolar interaction, with the key "control knob" being filling factors in each tube, provided the inter-tube tunneling is suppressed. The effective ab-initio quantum Monte Carlo algorithm capturing these phases is introduced and some results are presented.

References in corpus (9)

• Many-Body Physics with Ultracold Gases
• A High Phase-Space-Density Gas of Polar Molecules
• Degenerate Bose-Bose mixture in a three-dimensional optical lattice
• Ultracold Fermionic Feshbach Molecules of ${}^{23}$Na${}^{40}$K
• Superfluidity of Interacting Bosonic Mixtures in Optical Lattices
• Quantum fluids of self-assembled chains of polar molecules
• Superfluidity and dimerization in a multilayered system of fermionic polar molecules
• Interacting Bose gases in quasi-one dimensional optical lattices
• Thermometry and Refrigeration in a Two-Component Mott Insulator of Ultracold Atoms