Transition from supersonic to subsonic waves in superfluid Fermi gases

被引：2

作者：

Van Loon, Senne ^{[1
]}

Van Alphen, Wout ^{[1
]}

Tempere, Jacques ^{[1
]}

Kurkjian, Hadrien ^{[1
]}

机构：

[1] Univ Antwerp, TQC, Univ Pl 1, B-2610 Antwerp, Belgium

来源：

PHYSICAL REVIEW A | 2018年 / 98卷 / 06期

基金：

欧盟地平线“2020”;

关键词：

SHOCK-WAVES; THERMODYNAMICS; SOUND;

D O I：

10.1103/PhysRevA.98.063627

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the propagation of dispersive waves in superfluid Fermi gases in the BEC-BCS crossover. Unlike in other superfluid systems where dispersive waves have already been studied and observed, Fermi gases can exhibit a subsonic dispersion relation for which the dispersive wave pattern appears at the tail of the wave front. We show that this property can be used to distinguish between a subsonic and a supersonic dispersion relation at unitarity.

引用

页数：7

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