EXOTIC SUPERFLUIDITY IN COLD ATOMS

被引：0
|
作者：
Gubankova, Elena [1 ]
机构：
[1] Tufts Univ, Boston, MA 02111 USA
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2010年 / 25卷 / 2-3期
关键词：
BCS-BEC crossover; asymmetric ultracold Fermi systems; gapless superfluidity; FESHBACH RESONANCES; PHASE-SEPARATION; SUPERCONDUCTIVITY;
D O I：
10.1142/S0217751X10048925
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
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 BEC 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：637 / 646
页数：10
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