Spin collective modes of two-species Fermi liquids:: 3He and atomic gases near the Feshbach resonance

被引：3

作者：

Dahal, H. P. ^{[1
]}

Gaudio, S. ^{[2
]}

Feldmann, J. D. ^{[1
]}

Bedell, K. S. ^{[1
]}

机构：

[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

[2] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.78.035601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present theoretical findings on the spin collective modes of a two-species Fermi liquid, prepared alternatively in a polarized equilibrium or a polarized nonequilibrium state. We explore the effects on these modes of a diverging s-wave scattering length, as occurs near a Feshbach resonance in a fermionic atomic gas. We compare these atomic gas modes with those of the conventional He-3 system, and we find that they differ from the conventional systems, and that the gap and spin stiffness are tunable via the Feshbach resonance.

引用

页数：4

共 27 条

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