Superfluid transition in disordered dipolar Fermi gases

被引:1
|
作者
Matveenko, S., I [1 ,2 ]
Yudson, V., I [1 ,3 ]
Altshuler, B. L. [1 ,4 ]
Shlyapnikov, G., V [1 ,5 ,6 ]
机构
[1] Russian Quantum Ctr, Moscow 143025, Russia
[2] LD Landau Inst Theoret Phys, Chernogolovka 142432, Moscow Region, Russia
[3] Natl Res Univ Higher Sch Econ, Lab Condensed Matter Phys, Moscow 101000, Russia
[4] Columbia Univ, Phys Dept, 538 West 120th St, New York, NY 10027 USA
[5] Univ Paris Saclay, LPTMS, CNRS, F-91405 Orsay, France
[6] Univ Amsterdam, Van der Waals Zeeman Inst, Inst Phys, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
基金
俄罗斯科学基金会;
关键词
Temperature - Electron gas;
D O I
10.1103/PhysRevA.102.053319
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We consider a weakly interacting two-component Fermi gas of dipolar particles (magnetic atoms or polar molecules) in two-dimensional geometry. The dipole-dipole interaction (together with the short-range interaction at Feshbach resonances) for dipoles perpendicular to the plane of translational motion may provide a superfluid transition. The dipole-dipole scattering amplitude is momentum dependent, which violates the Anderson theorem that claims the independence of the transition temperature on the presence of weak disorder. We have shown that the disorder can strongly increase the critical temperature (up to 10 nK at realistic densities). This opens wide possibilities for the studies of the superfluid regime in weakly interacting Fermi gases, which has not been observed so far.
引用
收藏
页数:8
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