Exotic Superfluidity in Cold Atoms

被引：0
|
作者：
Gubankova, Elena [1 ]
机构：
[1] Tufts Univ, Boston, MA 02111 USA
来源：
CROSSING THE BOUNDARIES: GAUGE DYNAMICS AT STRONG COUPLING | 2010年
关键词：
BCS-BEC crossover; asymmetric ultracold Fermi systems; gapless superfluidity; FESHBACH RESONANCES; PHASE-SEPARATION; SUPERCONDUCTIVITY;
D O I：
10.1142/9789814304030_0039
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We derived the low energy effective action for the collective modes in asymmetric fermionic systems with attractive interaction. We obtained the phase diagram in terms of the chemical potentials. It features a stable gapless superfluidity with one Fermi surface on the EEC side of the resonance. Also we predict a sharp increase in outer core of a vortex, i.e. vortex size, upon entering into the gapless phase. This may serve as a signature of a gapless phase.
引用
收藏
页码：514 / 525
页数：12
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