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摘要翻译：
通过求解Bogoliubov-de Gennes方程和求序参量的实解和奇解，研究了超流费米气体中暗孤子沿BCS-BEC交叉的行为。我们发现，在散射长度较大的共振酉区，孤子的密度分布有一个很深的极小值，这与BCS区的情况不同。由于在序参量的节面附近出现Andreev费米子束缚态，孤子的存在使超流隙显着猝灭。
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英文标题：
《Dark solitons in a superfluid Fermi gas》
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作者：
Mauro Antezza, Franco Dalfovo, Lev P. Pitaevskii, Sandro Stringari
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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：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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一级分类：Physics 物理学
二级分类：Superconductivity 超导电性
分类描述：Superconductivity: theory, models, experiment. Superflow in helium
超导：理论，模型，实验。氦中超流
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英文摘要：
We investigate the behavior of dark solitons in a superfluid Fermi gas along the BCS-BEC crossover by solving the Bogoliubov - de Gennes equations and looking for real and odd solutions for the order parameter. We show that in the resonance unitary region, where the scattering length is large, the density profile of the soliton has a deep minimum, differently from what happens in the BCS regime. The superfluid gap is found to be significantly quenched by the presence of the soliton due to the occurrence of Andreev fermionic bound states localized near the nodal plane of the order parameter.
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PDF链接：
https://arxiv.org/pdf/706.0601
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