Position-dependent spin-orbit coupling for ultracold atoms

Abstract

We theoretically explore atomic Bose-Einstein condensates (BECs) subject to position-dependent spin-orbit coupling (SOC). This SOC can be produced by cyclically laser coupling four internal atomic ground (or metastable) states in an environment where the detuning from resonance depends on position. The resulting spin-orbit coupled BEC phase-separates into domains, each of which contain density modulations - stripes - aligned either along the x or y direction. In each domain, the stripe orientation is determined by the sign of the local detuning. When these stripes have mismatched spatial periods along domain boundaries, non-trivial topological spin textures form at the interface, including skyrmions-like spin vortices and anti-vortices. In contrast to vortices present in conventional rotating BECs, these spin-vortices are stable topological defects that are not present in the corresponding homogenous stripe-phase spin-orbit coupled BECs.

References in corpus (32)

• Artificial gauge potentials for neutral atoms
• Synthetic magnetic fields for ultracold neutral atoms
• Light-induced gauge fields for ultracold atoms
• Spin-orbit coupling in quantum gases
• Degenerate Quantum Gases with Spin-Orbit Coupling
• Spin-Orbit Coupled Spinor Bose-Einstein Condensates
• Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states
• Vortex lattice formation in a rotating Bose-Einstein condensate
• Trapped two-dimensional condensates with synthetic spin-orbit coupling
• Unconventional Bose-Einstein condensations from spin-orbit coupling
• Spin-orbit coupled Bose-Einstein condensates
• Spin-Orbit Coupled Quantum Gases
• Realistic Rashba and Dressehaus spin-orbit coupling for neutral atoms
• Realization of 2D Spin-orbit Interaction and Exotic Topological Orders in Cold Atoms
• Phenomenological damping in trapped atomic Bose-Einstein condensates
• Raman processes and effective gauge potentials
• Synthetic 3D Spin-Orbit Coupling
• Spin-Orbit Coupled Fermi Gases across a Feshbach Resonance
• Magnetically generated spin-orbit coupling for ultracold atoms
• BCS-BEC crossover induced by a synthetic non-Abelian gauge field
• Light induced effective magnetic fields for ultra-cold atoms in planar geometries
• How does a synthetic non-Abelian gauge field influence the bound states of two spin-$\half$ fermions?
• The nucleation, growth and stabilization of vortex lattices
• Non-equilibrium spin dynamics in a trapped Fermi gas with effective spin-orbit interaction
• Atomic spin-orbit coupling synthesized with magnetic-field-gradient pulses
• Quasi-relativistic behavior of cold atoms in light fields
• Onsager-Kraichnan Condensation in Decaying Two-Dimensional Quantum Turbulence
• Emergent patterns in a spin-orbit coupled spin-2 Bose-Einstein condensate
• Rashba spin-orbit coupled atomic Fermi gases
• Cold atom dynamics in non-Abelian gauge fields
• Topological interface engineering and defect crossing in ultracold atomic gases
• Topological interface physics of defects and textures in spinor Bose-Einstein condensates

Cited by in corpus (11)

• Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
• Symmetry breaking in binary Bose-Einstein condensates in the presence of an inhomogeneous artificial gauge field
• Rashba-type Spin-orbit Coupling in Bilayer Bose-Einstein Condensates
• Vortex patterns of atomic Bose-Einstein condensates in a density-dependent gauge potential
• Synthesizing Majorana zero-energy modes in a periodically gated quantum wire
• Vortex-lattice formation in a spin-orbit coupled rotating spin-1 condensate
• Hidden long-range order in a spin-orbit coupled two-dimensional Bose gas
• Few-to-many vortex states of density-angular-momentum coupled Bose-Einstein condensates
• Fractional Spin Quantum Hall Effect in Weakly Coupled Spin Chain Arrays
• Phase space curvature in spin-orbit coupled ultracold atom systems
• Band-edge superfluid of Bose-Einstein condensates in the spin-orbit-coupled Zeeman lattice