Tunable anisotropic magnetism in trapped two-component Bose gases

Abstract

We theoretically address magnetic ordering at zero and finite temperature in both homogeneous and trapped Bose-Bose mixtures in optical lattices. By using Bosonic Dynamical Mean-Field Theory, we obtain the phase diagram of the homogeneous two-component Bose-Hubbard model in a three-dimensional (3D) cubic lattice, which features competing magnetic order of XY-ferromagnetic and anti-ferromagnetic type in addition to the Mott and superfluid states. We show that these magnetic phases persist also in the presence of a harmonic trap.

10 pages, 13 figures

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Cited by in corpus (27)

• Nonequilibrium Phase Transition of Interacting Bosons in an Intra-Cavity Optical Lattice
• Lattice supersolid phase of strongly correlated bosons in an optical cavity
• Equilibration and prethermalization in the Bose-Hubbard and Fermi-Hubbard models
• Chiral Bosonic Phases on the Haldane Honeycomb Lattice
• Tunable Single-Ion Anisotropy in Spin-1 Models Realized with Ultracold Atoms
• Cooling through quantum criticality and many-body effects in condensed matter and cold gases
• Supersolidity of lattice Bosons immersed in strongly correlated Rydberg dressed atoms
• Many-body chiral edge currents and sliding phases of atomic spinwaves in momentum-space lattice
• Quantum phases of Bose-Bose mixtures on a triangular lattice
• Pomeranchuk effect and spin-gradient cooling of Bose-Bose mixtures in an optical lattice
• Emergent Chiral Spin State in the Mott Phase of a Bosonic Kane-Mele-Hubbard Model
• Bose-Bose Mixtures with Synthetic Spin-Orbit Coupling in Optical Lattices
• Magnetic phase transitions of spin-1 ultracold bosons in a cubic optical lattice
• Rotation-symmetry-enforced coupling of spin and angular momentum for p-orbital bosons
• Numerical calculation of spectral functions of the Bose-Hubbard model using B-DMFT
• Anisotropic pair-superfluidity of trapped two-component Bose gases
• Quantum phases of spin-orbital-angular-momentum coupled bosonic gases in optical lattices
• Persistent currents in Bose-Bose mixtures after an interspecies interaction quench
• Quantum crystal growing: Adiabatic preparation of a bosonic antiferromagnet in the presence of a parabolic inhomogeneity
• The large coordination number expansion of a lattice Bose gas at finite temperature
• Phase transitions of the coherently coupled two-component Bose gas in a square optical lattice
• Spin-Induced Orbital Frustration in a Hexagonal Optical Lattice
• Phase diagrams and multistep condensations of spin-1 bosonic gases in optical lattices
• Controlling higher-orbital quantum phases of ultracold atoms via coupling to optical cavities
• Magnetisms of spinor alkali and alkaline-earth atoms in optical lattices
• Microscopic Study on Superexchange Dynamics of Composite Spin-1 Bosons
• Phase Diagram and Spectral Function of the Two-Dimensional Disordered Bose-Hubbard Model: A Real-Space Dynamical Mean-Field Theory Analysis