A scattering view of the Bogoliubov-de Gennes equations

被引：2

作者：

Simonucci, Stefano ^{[1
]}

Garberoglio, Giovanni ^{[2
]}

Taioli, Simone ^{[3
,4
]}

机构：

[1] Univ Camerino, Dept Phys, Via Madonna Carceri 9, I-62032 Camerino, Italy

[2] Univ Trent, FBK CMM, LISC, I-38123 Trento, Italy

[3] Univ Trent, Dept Phys, I-38123 Trento, Italy

[4] Inst Nazionale Fisica Nucl Sezione Perugia, Perugia, Italy

来源：

LECTURES ON THE PHYSICS OF STRONGLY CORRELATED SYSTEMS XVI | 2012年 / 1485卷

关键词：

Bogoliubov-de Gennes equations; ultracold Fermi gases; multichannel scattering; T-matrix; potential radius; FERMI GAS; SUPERCONDUCTIVITY; SUPERFLUID; CROSSOVER; VORTICES;

D O I：

10.1063/1.4755832

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We advocate the use of the T -matrix of the pair potential to study the properties of ultra-cold Fermi gases in the mean-field approximation. Our approach does not require renormalization procedures even in the limit of contact interaction, and it provides a rigorous definition of the range of the potential. We also rewrite the Bogoliubov-de Gennes equation for the pairing function as a function of the T-matrix, and use it to investigate finite-range effects on the main thermodynamic observables in a gas of Li-6 atoms at unitarity, calculating the pair potential with ab initio quantum chemical methods.

引用

页码：312 / 318

页数：7

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