Expansion dynamics of a spherical Bose

Expansion dynamics of a spherical Bose–Einstein condensate

Li Rui-Zong^{1, 3}, Gao Tian-You^{1, †}, Zhang Dong-Fang¹, Peng Shi-Guo¹, Kong Ling-Ran^{1, 3}, Shen Xing^{1, 3}, Jiang Kai-Jun^{1, 2, ‡}

Isotropic expansion of the condensate. (a) Exemplary images probed in the vertical direction for five expansion times. (b) The aspect ratio η ( t ) versus the expansion time t. The black squares (red circles) are for the images probed in the horizontal (vertical) direction. Each error bar indicates the uncertainty of three measurements. The dashed line denotes the value of unity.