Overcritical Fermi superfluids

被引：1
|
作者：
Andreev A.F. [1 ]
Melnikovsky L.A. [1 ,2 ]
机构：
[1] P. L. Kapitza Institute for Physical Problems, Moscow
[2] Weizmann Institute of Science, Rehovot
来源：
Physical Review B | 2023年 / 108卷 / 02期
关键词：
D O I：
10.1103/PhysRevB.108.L020503
中图分类号：
学科分类号：
摘要：
Superfluidity in Fermi systems is not destroyed by a flow exceeding the Landau velocity threshold. The overcritical state acquires a normal component even at zero temperature. We explore the peculiar hydrodynamics of this system and discover two sound modes, for which the explicit universal dispersion relations are provided. © 2023 American Physical Society.
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