系统维度对超冷费米气体中非常规富尔德-费雷尔-拉金-奥夫钦尼科夫配对实现的影响。
The influence of the dimensionality of the system on the realization of unconventional Fulde-Ferrell-Larkin-Ovchinnikov pairing in ultra-cold Fermi gases.
作者信息
Ptok Andrzej
机构信息
Institute of Nuclear Physics, Polish Academy of Sciences, ul. E. Radzikowskiego 152, PL-31342 Kraków, Poland. Institute of Physics, Maria Curie-Skłodowska University, Plac M. Skłodowskiej-Curie 1, PL-20031 Lublin, Poland.
出版信息
J Phys Condens Matter. 2017 Nov 29;29(47):475901. doi: 10.1088/1361-648X/aa928d.
The recent development of experimental techniques in ultracold atomic Fermi gases is extremely helpful in the progress of the realization of the unconventional Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluid phase in quasi-one dimensional systems (Liao et al 2010 Nature 467 567). Due to a Fermi surface nesting, which is enhanced in 1D, the low-dimensional systems are particularly good candidates to find the FFLO phase stable. We investigate the influence of a dimensional crossover (from one dimension (1D) to two dimensions (2D) or three dimensions (3D)) on the stability of the FFLO state in the spin-imbalanced attractive Hubbard model.
超冷原子费米气体实验技术的最新进展，对准一维系统中实现非常规的富尔德-费雷尔-拉金-奥夫钦尼科夫（FFLO）超流相有极大帮助（廖等人，《自然》2010年第467卷，第567页）。由于在一维中增强的费米面嵌套，低维系统是寻找稳定FFLO相的特别合适的候选者。我们研究了维度交叉（从一维（1D）到二维（2D）或三维（3D））对自旋不平衡吸引哈伯德模型中FFLO态稳定性的影响。
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