Sound Modes of a Bose-Fermi Mixture Superfluid at Finite Temperatures

被引：1

作者：

Ono, Yosuke ^{[1
]}

Sakamoto, Ryohei ^{[1
]}

Mori, Hiroyuki ^{[1
]}

Arahata, Emiko ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Fac Sci & Engn, Hachioji, Tokyo 1920397, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2016年 / 85卷 / 06期

关键词：

D O I：

10.7566/JPSJ.85.065004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the sound modes of a Bose-Fermi mixture superfluid at finite temperatures in the collisional hydrodynamic regime. We extend Landau's hydrodynamic theory to deal with a Bose-Fermi mixture superfluid and show the existence of three sound modes. We calculate the hydrodynamic sound velocities numerically using the Nozieres and Schmitt-Rink theory at unitarity. The three-sound-modes hybrid in Bose-Fermi mixture superfluids contrasts with the two sound modes exhibited by He-3 and He-4 superfluids.

引用

页数：2

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