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.
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收藏
页数：7
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