Nonstandard pairing in asymmetric trapped Fermi gases -: art. no. 025601

被引：56

作者：

Castorina, P

Grasso, M

Oertel, M

Urban, M

Zappalà, D

机构：

[1] Dipartimento Fis & Astron, I-95123 Catania, Italy

[2] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy

[3] Inst Phys Nucl, F-91406 Orsay, France

[4] CEA DAM Ile France, Serv Phys Nucl, F-91680 Bruyeres Le Chatel, France

来源：

PHYSICAL REVIEW A | 2005年 / 72卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.72.025601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study an ultracold trapped Fermi gas of atoms in two hyperfine states with unequal populations. In this situation the usual BCS pairing is suppressed and nonstandard pairing mechanisms become important. These are treated by solving the Bogoliubov-de Gennes equations, which at the same time correctly take into account the finite size of the trapped system. We find results which can be viewed as generalization of the LOFF (Larkin-Ovchinnikov-Fulde-Ferrel) phase to finite systems.

引用

页数：4

共 27 条

[1] Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas [J].