113 citations · 308 across the 9 of their papers we have counts for
9 papers
Spin-driven stationary turbulence in spinor Bose-Einstein condensates
Deokhwa Hong, Junghoon Lee, Jongmin Kim +4
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 en…
Crossover from weak to strong quench in a spinor Bose-Einstein condensate
Seji Kang, Deokhwa Hong, Joon Hyun Kim +1
We investigate the early-time dynamics of a quasi-two-dimensional spin-1 antiferromagnetic Bose-Einstein condensate after a sudden quench from the easy-plane to the easy-axis polar…
Observation of wall-vortex composite defects in a spinor Bose-Einstein condensate
Seji Kang, Sang Won Seo, Hiromitsu Takeuchi +1
We report the observation of spin domain walls bounded by half-quantum vortices (HQVs) in a spin-1 Bose-Einstein condensate with antiferromagnetic interactions. A spinor condensate…
Metastable hard-axis polar state of a spinor Bose-Einstein condensate under a magnetic field gradient
Joon Hyun Kim, Deokhwa Hong, Seji Kang +1
We investigate the stability of a hard-axis polar state in a spin-1 antiferromagnetic Bose-Einstein condensate under a magnetic field gradient, where the easy-plane spin anisotropy…
Emergence and scaling of spin turbulence in quenched antiferromagnetic spinor Bose-Einstein condensates
Seji Kang, Sang Won Seo, Joon Hyun Kim +1
We investigate the phase transition dynamics of a quasi-2D antiferromagnetic spin-1 Bose-Einstein condensate from the easy-axis polar phase to the easy-plane polar phase, which is…
Collisional Dynamics of Half-Quantum Vortices in a Spinor Bose-Einstein Condensate
Sang Won Seo, Woo Jin Kwon, Seji Kang +1
We present an experimental study on the interaction and dynamics of half-quantum vortices (HQVs) in an antiferromagnetic spinor Bose-Einstein condensate. By exploiting the orbit mo…
Half-Quantum Vortices in an Antiferromagnetic Spinor Bose-Einstein Condensate
Sang Won Seo, Seji Kang, Woo Jin Kwon +1
We report on the observation of half-quantum vortices (HQVs) in the easy-plane polar phase of an antiferromagnetic spinor Bose-Einstein condensate. Using in situ magnetization-sens…
Rotating a Bose-Einstein condensate by shaking an anharmonic axisymmetric magnetic potential
Seji Kang, J. Choi, S. W. Seo +2
We present an experimental method for rotating a Bose-Einstein condensate trapped in an axisymmetric magnetic potential. This method is based on the anharmonicity of the trapping p…
Observation of a Geometric Hall Effect in a Spinor Bose-Einstein Condensate with a Skyrmion Spin Texture
Jae-yoon Choi, Seji Kang, Sang Won Seo +2
For a spin-carrying particle moving in a spatially varying magnetic field, effective electromagnetic forces can arise due to the geometric phase associated with adiabatic spin rota…