Spin-orbit-angular-momentum coupling in a spin-1 Bose-Einstein condensate

Abstract

We propose a simple model with spin and orbit angular momentum coupling in a spin-1 Bose- Einstein condensate, where three internal atomic states are Raman coupled by a pair of co- propagating Laguerre-Gaussian beams. The resulting Raman transition imposes a transfer of orbital angular momentum between photons and the condensate in a spin-dependent way. Focusing on a regime where the single-particle ground state is nearly three-fold degenerate, we show that the weak interatomic interaction in the condensate produces a rich phase diagram, and that a many-body Rabi oscillation between two quantum phases can be induced by a sudden quench of the quadratic Zeeman shift. We carried out our calculations using both a variational method and a full numerical method, and found excellent agreement.

7 pages, 4 figures

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• Observation of quantum phase transition in spin-orbital-angular-momentum coupled Bose-Einstein condensate
• Tricriticalities and Quantum Phases in Spin-Orbit-Coupled Spin-$1$ Bose Gases
• Spin-orbit-coupled Bose-Einstein condensates held under toroidal trap
• Rotating atomic quantum gases with light-induced azimuthal gauge potentials and the observation of Hess-Fairbank effect
• Spin-orbit coupling and topological phases for ultracold atoms
• Angular Stripe Phase in Spin-Orbital-Angular-Momentum Coupled Bose Condensates
• Generating Giant Vortex in a Fermi Superfluid via Spin-Orbital-Angular-Momentum Coupling
• Emergent periodic and quasiperiodic lattices on surfaces of synthetic Hall tori and synthetic Hall cylinders
• Ground-state phase diagram and excitation spectrum of a Bose-Einstein condensate with spin-orbital-angular-momentum coupling
• Symmetry breaking and phase transitions in Bose-Einstein condensates with spin-orbital-angular-momentum coupling
• Excitation spectra of a Bose-Einstein condensate with an angular spin-orbit coupling
• Spin-Nematic Vortex States in Cold Atoms
• Real space mean-field theory of a spin-1 Bose gas in synthetic dimensions
• Spin-orbital-angular-momentum-coupled quantum gases
• Spin squeezing in a spin-orbit coupled Bose-Einstein condensate
• Fine structure of the stripe phase in ring-shaped Bose-Einstein condensates with spin-orbital-angular-momentum coupling
• Quantum phases of spin-orbital-angular-momentum coupled bosonic gases in optical lattices
• Spin exchange-induced spin-orbit coupling in a superuid mixture
• Path integral molecular dynamics for thermodynamics and Green's function of ultracold spinor bosons
• Angular topological superfluid and topological vortex in an ultracold Fermi gas
• Quantum phases and spectrum of collective modes in a spin-1 BEC with spin-orbital-angular-momentum coupling
• Spin-1 bosons in an external magnetic field and a three body interaction potential
• Excitations of a supersolid annular stripe phase in a spin-orbital-angular-momentum-coupled spin-1 Bose-Einstein condensate
• Molecular state in a spin-orbital-angular-momentum coupled Fermi gas
• Sinusoidal magnetic field induced topological excitations in a spin-orbit coupled spinor condensate
• Spin-1 Bose Hubbard model with nearest neighbour extended interaction
• Spectroscopy and spin dynamics for strongly interacting few spinor bosons in one-dimensional traps
• Effective spin dynamics of spin-orbit coupled matter-wave solitons in optical lattices
• Time-reversal-invariant spin-orbit-coupled bilayer Bose-Einstein Condensates
• Dynamic generation of superflow in a fermionic ring through phase imprinting
• The synthetic gauge field and exotic vortex phase with spin-orbital-angular-momentum coupling
• Two atoms in a harmonic trap with spin-orbital-angular-momentum coupling
• Vortex phases and domain walls in trapped spinor Bose-Einstein condensates with inhomogeneous spin-orbital-angular-momentum coupling
• Dynamically generating superflow in a bosonic ring via phase imprinting