Phase separation in a spin-orbit coupled Bose-Einstein condensate

Abstract

We study a spin-orbit (SO) coupled hyperfine spin-1 Bose-Einstein condensate (BEC) in a quasi-one-dimensional trap. For a SO-coupled BEC in a one-dimensional box, we show that in the absence of the Rabi term, any non-zero value of SO coupling will result in a phase separation among the components for a ferromagnetic BEC, like ${}^{87}$Rb. On the other hand, SO coupling favors miscibility in a polar BEC, like ${}^{23}$Na. In the presence of a harmonic trap, which favors miscibility, a ferromagnetic BEC phase separates, provided the SO-coupling strength and number of atoms are greater than some critical value. The Rabi term favors miscibility irrespective of the nature of the spin interaction: ferromagnetic or polar.

References in corpus (20)

• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Spin-Orbit Coupled Spinor Bose-Einstein Condensates
• Spin-orbit coupled Bose-Einstein condensates
• The creation of two-dimensional composite solitons in spin-orbit-coupled self-attractive Bose-Einstein condensates in free space
• Bright solitons in spin-orbit-coupled Bose-Einstein condensates
• C programs for solving the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap
• Effect of Induced Spin-Orbit Coupling for Atoms via Laser Fields
• Generalized Rashba spin-orbit coupling for cold atoms
• Broken axisymmetry phase of a spin-1 ferromagnetic Bose-Einstein condensate
• Emergent patterns in a spin-orbit coupled spin-2 Bose-Einstein condensate
• Bose-Einstein Condensates in Spin-Orbit Coupled Optical Lattices: Flat Bands and Superfluidity
• Soliton Magnetization Dynamics in Spin-Orbit Coupled Bose-Einstein Condensates
• Symmetry classification of spin-orbit coupled spinor Bose-Einstein condensates
• Localization of a spin-orbit coupled Bose-Einstein condensate in a bichromatic optical lattice
• Stationary States of Trapped Spin-Orbit-Coupled Bose-Einstein Condensates
• Excited spin states and phase separation in spinor Bose-Einstein condensates
• Fragmentation of Spin-orbit Coupled Spinor Bose-Einstein Condensates
• Superfluid Breakdown and Multiple Roton Gaps in Spin-Orbit Coupled Bose-Einstein Condensates on an Optical Lattice
• Phase separation of binary condensates in harmonic and lattice potentials
• Drag force on a moving impurity in a spin-orbit coupled Bose-Einstein condensate

Cited by in corpus (2)

• Spontaneous symmetry breaking in a spin-orbit coupled $f=2$ spinor condensate
• Symmetry protected skyrmions in 3D spin-orbit coupled Bose gases