Spin-driven stationary turbulence in spinor Bose-Einstein condensates

Abstract

We report the observation of stationary turbulence in antiferromagnetic spin-1 Bose-Einstein condensates driven by a radio-frequency magnetic field. The magnetic driving injects energy into the system by spin rotation and the energy is dissipated via dynamic instability, resulting in the emergence of an irregular spin texture in the condensate. Under continuous driving, the spinor condensate evolves into a nonequilibrium steady state with characteristic spin turbulence, while the low energy scale of spin excitations ensures that the sample's lifetime is minimally affected. When the driving strength is on par with the system's spin interaction energy and the quadratic Zeeman energy, remarkably, the stationary turbulent state exhibits spin-isotropic features in spin composition and spatial spin texture. We numerically show that ambient field fluctuations play a crucial role in sustaining the turbulent state within the system. These results open up new avenues for exploring quantum turbulence in spinor superfluid systems.

9 pages, 9 figures

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Cited by in corpus (6)

• Chaos-assisted Turbulence in Spinor Bose-Einstein Condensates
• Sinusoidal magnetic field induced topological excitations in a spin-orbit coupled spinor condensate
• Random spin textures in turbulent spinor Bose-Einstein condensates
• Faraday patterns, spin textures, spin-spin correlations and competing instabilities in a driven spin-1 antiferromagnetic Bose-Einstein condensate
• Evolution of density variations in a trapped atomic superfluid driven into turbulence
• Generation of squeezed optical states via stored classical pulses in a Bose gas