3 papers
cond-mat.quant-gas2019
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…
cond-mat.quant-gas2018
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…
cond-mat.quant-gas2018
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…