Supersolid-like solitons in spin-orbit coupled spin-2 condensate

Abstract

We study supersolid-like crystalline structures emerging in the stationary states of a quasi-two-dimensional spin-orbit (SO)-coupled spin-2 condensate in the ferromagnetic, cyclic, and antiferro-magnetic phases by solving a mean-field model.Interplay of different strengths of SO coupling and interatomic interactions gives rise to a variety of non-trivial density patterns in the emergent solutions. For small SO-coupling strengths $\gamma$ ($\gamma \approx 0.5$), the ground state is an axisymmetric multi-ring soliton for polar, cyclic and weakly-ferromagnetic interactions, whereas for stronger-ferromagnetic interactions a circularly-asymmetric soliton emerges as the ground state.Depending on the values of interaction parameters, with an increase in SO-coupling strength, a stripe phase may also emerge as the ground state for polar and cyclic interactions. For intermediate values of SO-coupling strength ($\gamma \approx 1$), in addition to these solitons, one could have a quasi-degenerate triangular-lattice soliton in all magnetic phases. On further increasing the SO-coupling strength ($\gamma ⪆4$), a square-lattice and a superstripe soliton emerge as quasi-degenerate states. The emergence of all these solitons can be inferred from a study of solutions of the single-particle Hamiltonian.

References in corpus (13)

• Degenerate Quantum Gases with Spin-Orbit Coupling
• Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
• Self-bound droplets of a dilute magnetic quantum liquid
• Transient supersolid properties in an array of dipolar quantum droplets
• Long-lived and transient supersolid behaviors in dipolar quantum gases
• 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
• Localized modes in quasi-2D Bose-Einstein condensates with spin-orbit and Rabi couplings
• Emergent patterns in a spin-orbit coupled spin-2 Bose-Einstein condensate
• Vortex-bright solitons in a spin-orbit coupled spin-$1$ condensate
• Spatial coherence of spin-orbit-coupled Bose gases
• Symmetry classification of spin-orbit coupled spinor Bose-Einstein condensates
• Multi-ring, stripe, and super-lattice solitons in a spin-orbit coupled spin-1 condensate

Cited by in corpus (5)

• Supersolid-like square- and honeycomb-lattice crystallization of droplets in a dipolar condensate
• Supersolid-like square- and triangular-lattice crystallization of dipolar droplets in a box trap
• Dipole-mode and scissors-mode oscillations of a dipolar supersolid
• Vortex Lattice Formation in Spin-Orbit-Coupled Spin-2 Bose-Einstein Condensate Under Rotation
• Quasi-two-dimensional soliton in a self-repulsive spin-orbit-coupled dipolar binary condensate