Studies of atomic spin-orbit coupling synthesized with gradient magnetic fields

29th International Conference on Photonic, Electronic, and Atomic Collisions

Luo, Xinyu^1 ; Wu, Lingna^1 ; Wang, Ruquan^2,3 ; You, L.^1,3

State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing

100084, China^1

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing

100080, China^2

Collaborative Innovation Center of Quantum Matter, Beijing, China^3

关键词: Atomic condensates;    Atomic spin;    Equilibrium state;    Gradient magnetic field;    Harmonic trap;    Modulation frequencies;    Trapping frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/2/022036/pdf
DOI  :  10.1088/1742-6596/635/2/022036

来源: IOP

【 摘 要 】

Atomic spin orbit coupling (SOC) can be synthesized with modulating gradient magnetic field (GMF). This is confirmed through studying collective dipole oscillations for a spin-1 atomic condensate in a harmonic trap after abruptly turning on SOC, and studying adiabatically adjusted equilibrium states when SOC strength is slowly ramped up. Further measurements reveal that SOC can be enhanced when the GMF modulation frequency approaches trapping frequency.