| 非简谐势阱中有相互作用的两组分简并费米气体的稳定性 |
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| 引用本文： | 薛具奎,马玉婷.非简谐势阱中有相互作用的两组分简并费米气体的稳定性[J].西北师范大学学报,2010(6). |
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| 作者姓名： | 薛具奎 马玉婷 |
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| 作者单位： | 西北师范大学物理与电子工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(10774120); 甘肃省自然科学基金资助项目(3ZS051-A25-013); 西北师范大学科技创新工程资助项目(NWNU-KJCXGC-03-17,NWNU-KJCXGC-03-48) |
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| 摘 要： | 研究非简谐势阱中有短程相互作用的两组分简并费米气体在平均场理论下的稳定性问题.运用变分法推导出在有效s波相互作用和有效p波相互作用下系统在非简谐势阱中的稳定性条件,讨论了势阱的非简谐性以及有效p波相互作用对超冷费米气体稳定性的影响.结果表明势阱的非简谐性以及有效p波相互作用对系统的稳定性会产生影响,并且会对粒子数密度的分布产生影响.
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| 关 键 词： | 两组分简并费米气体 非简谐势阱 s波 p波 稳定性 |
Stability of two-component degenerate Fermi gases with attractive interactions in an anharmonic trap |
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| XUE Ju-kui,MA Yu-ting.Stability of two-component degenerate Fermi gases with attractive interactions in an anharmonic trap[J].Journal of Northwest Normal University Natural Science (Bimonthly),2010(6). |
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| Authors: | XUE Ju-kui MA Yu-ting |
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| Institution: | XUE Ju-kui,MA Yu-ting(College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,Gansu,China) |
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| Abstract: | The stability of two-component degenerate Fermi gases with attractive interactions in a harminic trap with a quartic distortion in the mean-field is studied.The influences of anharmonicity and p-wave interaction on the stability of Fermi gas are discussed,respectively.It is shown that the anharmonicity of harminic trap and the p-wave interaction have important effect on the stability of Fermi gas,and have an effect on the particle numberal density distributing.Using variational approaches,the stability cond... |
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| Keywords: | two-component degenerate Fermi gases anharmonic trap s-wave p-wave stability |
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