Strongly Spinor Ferromagnetic Bose Gases

Abstract

By studying the zero-temperature and nonzero-temperature phase diagrams of the ferromagnetic spin-1 Bose-Hubbard model under an external magnetic field, we find that the competition between ferromagnetism and the quadratic Zeeman energy yields two superfluid phases, which feature discontinuous first-order phase transitions between them for a strongly spinor Bose gas such as ${}^7$Li, contrary to the corresponding continuum system.

9 pages, 8 figures

References in corpus (9)

• Many-Body Physics with Ultracold Gases
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Monte Carlo study of two-dimensional Bose-Hubbard model
• Ultracold bosons with short-range interaction in regular optical lattices
• Broken axisymmetry phase of a spin-1 ferromagnetic Bose-Einstein condensate
• Phases and Transitions in the Spin-1 Bose-Hubbard Model: Systematics of a Mean-field Theory
• Ground States of the Spin-1 Bose-Hubbard Model
• First-order superfluid to Mott-insulator phase transitions in spinor condensates
• Static and Dynamic Properties of Interacting Spin-1 Bosons in an Optical Lattice

Cited by in corpus (4)

• Observation of a strongly ferromagnetic spinor Bose-Einstein condensate
• Phase diagrams and multistep condensations of spin-1 bosonic gases in optical lattices
• Spin-1 Bose-Hubbard model with two- and three-body interactions
• Phase transitions and spin excitations of spin-1 bosons in optical lattice