摘要翻译：
在无序关联长度小于超流愈合长度的极限下，计算了弱随机势对零温囚禁相互作用玻色-爱因斯坦凝聚体集体模的影响。在Thomas-Fermi极限下，通过推广超流体流体力学方程，考虑弱无序的存在，解决了该问题。我们发现，由无序引起的低能激发的频移可以与最近实验观察到的正常相互作用中的超平均场修正相同数量级。
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英文标题：
《Collective Oscillations in Trapped Bose-Einstein Condensed Gases in the
  Presence of Weak Disorder》
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作者：
G.M. Falco, A. Pelster, R. Graham
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最新提交年份：
2007
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分类信息：

一级分类：Physics        物理学
二级分类：Other Condensed Matter        其他凝聚态物质
分类描述：Work in condensed matter that does not fit into the other cond-mat classifications
在不适合其他cond-mat分类的凝聚态物质中工作
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一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
  The influence of a weak random potential on the collective modes of a trapped interacting Bose-Einstein condensate at zero temperature is calculated in the limit when the correlation length of the disorder is smaller than the healing length of the superfluid. The problem is solved in the Thomas-Fermi limit by generalizing the superfluid hydrodynamic equations to allow for the presence of weak disorder. We find that the disorder-induced frequency-shifts of the low-energy excitations can be of the same order of magnitude as the beyond mean-field corrections in the normal interaction recently observed experimentally.
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PDF链接：
https://arxiv.org/pdf/705.0097