Spin-orbit coupling induced separation and hidden spin textures in spin-1 Bose-Einstein condensates

Abstract

We analytically and numerically investigate the ground state of the spin-orbit coupled spin-1 Bose-Einstein condensates in an external parabolic potential. When the spin-orbit coupling strength $\kappa$ is comparable with that of the trapping potential, the density distribution centers of different components of the spinor condensate deviate evidently from the trap center in the plane wave and stripe phases. When $\kappa \gg 1$, the magnitude of this deviation decreases as $\kappa$ is getting larger and larger. Correspondingly, periphery half-skyrmions textures arise. This deviation can be reflected by the non-uniform magnetic moment in the $z$ direction, ${\mathcal{F}}_z$. With the manipulation of the external trap, the local magnitude of ${\mathcal{F}}_z$ can be increased evidently. This kind of increase of ${\mathcal{F}}_z$ is also observed in the square vortex lattice phase of the condensate.

7pages,8 figures

References in corpus (23)

• Dissipationless Quantum Spin Current at Room Temperature
• Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
• Spin-Orbit Coupled Degenerate Fermi Gases
• Spin-Orbit Coupled Spinor Bose-Einstein Condensates
• A Bose-Einstein Condensate in a Uniform Light-induced Vector Potential
• SU(2) Non-Abelian Holonomy and Dissipationless Spin Current in Semiconductors
• Trapped two-dimensional condensates with synthetic spin-orbit coupling
• Spin-orbit coupled Bose-Einstein condensates
• The Peierls substitution in an engineered lattice potential
• Zitterbewegung of electronic wave packets in semiconductor nanostructures
• Dynamical Creation of Fractionalized Vortices and Vortex Lattices
• Observation of Topologically Stable 2D Skyrmions in an Antiferromagnetic Spinor Bose-Einstein Condensate
• Half-quantum vortex state in a spin-orbit coupled Bose-Einstein condensate
• Generalized Rashba spin-orbit coupling for cold atoms
• Comparing and contrasting nuclei and cold atomic gases
• Spin-orbit-coupled dipolar Bose-Einstein condensates
• Sculpting the Vortex State of a Spinor BEC
• Emergent patterns in a spin-orbit coupled spin-2 Bose-Einstein condensate
• Crystallized merons and inverted merons in the condensation of spin-1 Bose gases with spin-orbit coupling
• Interaction Induced Hall Response in a Spin-Orbit Coupled Bose-Einstein Condensate
• Striped states in weakly trapped ultracold Bose gases with Rashba spin-orbit coupling
• Generation of ring dark solitons by phase engineering and their oscillations in spin-1 Bose-Einstein condensates
• Critical temperature of a Rashba spin-orbit coupled Bose gas in harmonic traps

Cited by in corpus (8)

• Light-induced gauge fields for ultracold atoms
• Phase separation in a spin-orbit coupled Bose-Einstein condensate
• Spin-orbit-coupled Bose-Einstein condensates held under toroidal trap
• Bright solitons in a 2D spin-orbit-coupled dipolar Bose-Einstein condensate
• Fragmentation of Spin-orbit Coupled Spinor Bose-Einstein Condensates
• Spontaneous symmetry breaking in a spin-orbit coupled $f=2$ spinor condensate
• Spin-orbit-coupling-induced phase separation in trapped Bose gases
• Vortices and vortex states in Rashba spin-orbit-coupled condensates