Deokhwa Hong

Aug 8, 2024 | link.aps.org | Jongmin Kim |Junghoon Lee |Deokhwa Hong |Jongheum Jung

We present a turbulence-sustaining mechanism in a spinor Bose-Einstein condensate, which is based on the chaotic nature of internal spin dynamics. Magnetic driving induces a complete chaotic evolution of the local spin state, thereby continuously randomizing the spin texture of the condensate to maintain the turbulent state.

Jul 27, 2023 | link.aps.org | Junghoon Lee |Jongmin Kim |Jong Heum Jung |Deokhwa Hong

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.