Collective excitations in cigar-shaped spin-orbit coupled spin-1 Bose-Einstein condensates
arXiv:2204.06898 · doi:10.1103/PhysRevA.106.013304
Abstract
We theoretically study the collective excitations of a spin-orbit-coupled spin-1 Bose-Einstein condensate with antiferromagnetic spin-exchange interactions in a cigar-shaped trapping potential at zero and finite temperatures using the Hartree-Fock-Bogoliubov theory with Popov approximation. The collective modes at zero temperature are corroborated by the real-time evolution of the ground state subjected to a perturbation suitable to excite a density or a spin mode. We have also calculated a few low-lying modes analytically and found a very good agreement with the numerical results. We confirm the presence of excitations belonging to two broad categories, namely density, and spin excitations, based on the calculation of dispersion. The degeneracy between a pair of spin modes is broken by the spin-orbit coupling. At finite temperature, spin and density excitations show qualitatively different behavior as a function of temperature.
References in corpus (53)
- Topological Insulators
- A spin-orbit coupled Bose-Einstein condensate
- Spinor Bose Condensates in Optical Traps
- Optical Confinement of a Bose-Einstein Condensate
- Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
- Spinor Bose-Einstein condensates
- Degenerate Quantum Gases with Spin-Orbit Coupling
- Spin-Orbit Coupled Spinor Bose-Einstein Condensates
- All Optical Formation of an Atomic Bose-Einstein Condensate
- Conserving and Gapless Approximations for an Inhomogeneous Bose Gas at Finite Temperatures
- Observation of spinor dynamics in optically trapped 87Rb Bose-Einstein Condensates
- Dynamics of F=2 Spinor Bose-Einstein Condensates
- Unified Description of Nambu-Goldstone Bosons without Lorentz Invariance
- Vortices in multicomponent Bose-Einstein condensates
- Superstripes and the excitation spectrum of a spin-orbit-coupled Bose-Einstein condensate
- Experimental Determination of the Finite-Temperature Phase Diagram of a Spin-Orbit Coupled Bose Gas
- Softening of Roton and Phonon Modes in a Bose-Einstein Condensate with Spin-Orbit Coupling
- Itinerant magnetism in spin-orbit coupled Bose gases
- Collective Excitations of a One-Dimensional Quantum Droplet
- Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
- Collective excitations of Bose-Einstein condensed gases at finite temperatures
- Tunable spin-orbit coupling synthesized with a modulating gradient magnetic field
- Measurement of collective excitations in a spin-orbit-coupled Bose-Einstein condensate
- Stability of ultracold atomic Bose condensates with Rashba spin-orbit coupling against quantum and thermal fluctuations
- Tricriticalities and Quantum Phases in Spin-Orbit-Coupled Spin- Bose Gases
- Phase diagram of spin 1 antiferromagnetic Bose-Einstein condensates
- Interacting spin-orbit-coupled spin-1 Bose-Einstein condensates
- Supercurrent and dynamical instability of spin-orbit-coupled ultracold Bose gases
- Critical superfluid velocity in a trapped dipolar gas
- Dynamics of F=1 87Rb condensates at finite temperatures
- Creating solitons by means of spin-orbit coupling
- Phase transitions and elementary excitations in spin-1 Bose gases with Raman-induced spin-orbit coupling
- Bose-Einstein condensation of trapped interacting spin-1 atoms
- Spin-Dipole Oscillation and Polarizability of a Binary Bose-Einstein Condensate near the Miscible-Immiscible Phase Transition
- Finite temperature theory of the trapped two dimensional Bose gas
- Anomalous Hall conductivity from the dipole mode of spin-orbit-coupled cold-atom systems
- Double Phase Transitions in Magnetized Spinor Bose-Einstein Condensation
- Goldstone modes and bifurcations in phase-separated binary condensates at finite temperature
- Collective excitation of a trapped Bose-Einstein condensate with spin-orbit coupling
- Effects of thermal and quantum fluctuations on the phase diagram of a spin-1 87Rb Bose-Einstein condensate
- FORTRESS: FORTRAN programs for solving coupled Gross-Pitaevskii equations for spin-orbit coupled spin-1 Bose-Einstein condensate
- Dispersion relation and excitation character of a two-component Bose-Einstein condensate
- Predicting spinor condensate dynamics from simple principles
- Finite temperature phase diagram of a spin-1 Bose gas
- Quantum and thermal fluctuations in a Raman spin-orbit coupled Bose gas
- Finite Temperature Phases of Two Dimensional Spin-Orbit Coupled Bosons
- Fluctuation and interaction induced instability of dark solitons in single and binary condensates
- Equation of state and phase transition in spin-orbit-coupled Bose gases at finite temperature: A perturbation approach
- Thermal fluctuations and quantum phase transition in antiferromagnetic Bose-Einstein condensates
- Hidden long-range order in a spin-orbit coupled two-dimensional Bose gas
- Temperature-Dependent Frequency Shifts in Collective Excitations of a Bose-Einstein Condensate
- Collective modes in multicomponent condensates with anisotropy
- Metastable spin-phase diagrams in antiferromagnetic Bose-Einstein condensates