首页|A Rotating Bose-Einstein Condensation in a Toroidal Trap
A Rotating Bose-Einstein Condensation in a Toroidal Trap
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We have studied the ground state configurations of a rotating Bose-Einstein condensation in a toroidal trap as the radius of the central Ganssian potentiaJ expands adiabatically. Firstly, we observe that the vortices are devoured successively into the central hole of the condensate to form a giant vortex as the radius of the trap expands. When all the pre-existing vortices are absorbed, the angular momentum of the system still increase as the radius of the ganssian potential enlarges. When increasing the interaction strength, we find that more singly quantized vortices are squeezed into the condensate, but the giant vortex does not change.
Bose-Einstein condensationtoroidal trapvortex
文渝川、张鹏鸣、李师杰
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Center of Theoretical Physics, Department of Physics, Capital Normal University, Beijing 100048, China／Kavli Institute for Theoretical Physics China, Chinese Academy of Sciences, Beijing 100190, China
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Kavli Institute for Theoretical Physics China, Chinese Academy of Sciences, Beijing 100190, China／Department of Physics, Beijing Normal University, Beijing 100875, China
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Supported by the National Natural Science Foundation of ChinaSupported by the National Natural Science Foundation of ChinaNatural Science Foundation of Beijing
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