Characterization of Spin-Driven Stationary Turbulence in Spinor Bose-Einstein Condensates

POSTER

Abstract

This poster presents our observation of stationary turbulence in antiferromagnetic spin-1 Bose-Einstein condensates under radio-frequency magnetic field driving. The magnetic driving injects energy into the system by spin rotation and the energy is dissipated via dynamic instability, resulting in the development of an irregular spin texture in the condensate. With continuous driving, the spinor condensate evolves into a nonequilibrium steady state with characteristic spin turbulence. To enrich our understanding, we explored various system parameters determining features of the turbulence. One of our findings is that as the driving strength approaches the system's intrinsic energy scale, the spin composition of the stationary turbulence becomes isotropic. We will also discuss the roles of driving frequency, noise and quadratic Zeeman energy on the emergence of spin turbulence.

*This work was supported by the National Research Foundation of Korea (NRF-2018R1A2B3003373, NRF2019M3E4A1080400, NRF-2019H1A2A1074494) and the Institute for Basic Science in Korea (IBS-R009-D1).

Publication: D. Hong, J. Lee, J. Kim, J. H. Jung, K. Lee, S. Kang and Y. Shin, Spin-Driven Stationary Turbulence in Spinor Bose-Einstein Condensates, arXiv:2302.00895 (2022).

Presenters

  • Jongheum Jung

    • Seoul Natl Univ

Authors

  • Jongheum Jung

    • Seoul Natl Univ
  • Junghoon Lee

    • Seoul Natl Univ
  • Jongmin Kim

    • Seoul Natl Univ
  • Deokhwa Hong

    • Seoul Natl Univ
  • Yong-il Shin

    • Seoul Natl Univ