Mott-Hubbard Transition of Bosons in Optical Lattices with Three-body Interactions

Abstract

In this paper, the quantum phase transition between superfluid state and Mott-insulator state is studied based on an extended Bose-Hubbard model with two- and three-body on-site interactions. By employing the mean-field approximation we find the extension of the insulating 'lobes' and the existence of a fixed point in three dimensional phase space. We investigate the link between experimental parameters and theoretical variables. The possibility to obverse our results through some experimental effects in optically trapped Bose-Einstein Condensates(BEC) is also discussed.

7 pages, 4 figures; to be appear in Phys. Rev. A

References in corpus (4)

• Many-Body Physics with Ultracold Gases
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Strong dipolar effects in a quantum ferrofluid
• p-wave Feshbach molecules

Cited by in corpus (9)

• Quantum trajectories and open many-body quantum systems
• Non-standard Hubbard models in optical lattices: a review
• Geometric Resonances in Bose-Einstein Condensates with Two- and Three-Body Interactions
• Three body on-site interactions in ultracold bosonic atoms in optical lattices and superlattices
• Elastic Multi-Body Interactions on a Lattice
• Mean-field approaches to the Bose-Hubbard model with three-body local interaction
• Trimer superfluid induced by photoassocation on the state-dependent optical lattice
• Three-body interacting dipolar bosons and the fate of lattice supersolidity
• Cornwall-Jackiw-Tomboulis effective field theory to nonuniversal equation of state of an ultracold Bose gas