| 弱相互作用对原子激射器势场有效性及原子数增益的影响 |
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| 引用本文： | 袁都奇. 弱相互作用对原子激射器势场有效性及原子数增益的影响[J]. 低温物理学报, 2011, 0(2): 137-141 |
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| 作者姓名： | 袁都奇 |
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| 作者单位： | 北京大学物理学院人工微结构与介观物理国家重点实验室; |
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| 基金项目： | 国家973计划项目(批准号:2006CD601004); 国家大学生创新性实验计划(批准号:J0630311)资助的课题~~ |
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| 摘 要： | 采用Thomas-Fermi近似,研究了弱相互作用对原子激射器势场有效性的影响,给出了有效势场和无效势场的条件,导出了广义幂律势阱中原子激射器的原子数增益与温度及相互作用的关系.结果表明:排斥相互作用有助于原子激射器粒子数增益的增加,吸引相互作用导致原子激射器粒子数增益的减小,降低温度对于原子激射器粒子数增益总是有效的...
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| 关 键 词： | 玻色-爱因斯坦凝聚 弱相互作用 原子激射器 原子数增益 |
EFFECT OF WEAKLY INTERACTING ON ATOMS GAIN AND VALIDITY OF POTENTIAL FIELD FOR ATOM LASER |
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| YUAN Du-qi. EFFECT OF WEAKLY INTERACTING ON ATOMS GAIN AND VALIDITY OF POTENTIAL FIELD FOR ATOM LASER[J]. Chinese Journal of Low Temperature Physics, 2011, 0(2): 137-141 |
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| Authors: | YUAN Du-qi |
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| Affiliation: | ZHANG Chen CHEN Li-ping WANG Yin-bo WU Tao-liLIU Wen-jing LIU Yu-xiao XUE Chi FENG Qing-rong State Key Laboratory for Artificial Structure and Mesoscopic Physics,School of Physics,Peking University,Beijing 100871 |
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| Abstract: | In this article,the effect of weakly interacting on validity of potential field for atom laser is investigated,the conditions of effective potential field and invalid potential field are given,the relationship between atoms gain and weakly interacting and temperature are derived,according to Thomas-Fermi approximation.The results indicated that the atoms gain in an atom laser is increased due to repulsion interacting,the atoms gain in an atom laser is decreased due to attracting interacting,the atoms gain i... |
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| Keywords: | Bose-Einstein condensation weakly interacting atoms laser atoms gain |
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