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Energy level-splitting of ground state in spinor Bose-Einstein condensate with large number of atoms
Acta Physica Sinica2009Vol. 58(1), pp. 55–55
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Xu Yan, Duoje Jia, Zhaoxin Li, Hou Feng-Chao, Lei Tan, Zhang Lu-yin, (1)兰州大学理论物理研究所,兰州 730000; (2)山东科技大学理学院，青岛 266510; (3)西北师范大学理论物理研究所，兰州 730030
Abstract
We study the mode deviation effect of a spin-1 Bose-Einstein condensate with large number of atoms in optical trap beyond the single-mode approximation. Based on the effective Hamiltonian with nondegenerate level of the collective spin states, we get the mode deviation factor and explicitly calculate the level splitting energy as function of the atom number N.
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