Heat and spin transport in a cold atomic Fermi gas

被引：15

作者：

Kim, Hyungwon ^{[1
]}

Huse, David A. ^{[1
]}

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 05期

关键词：

CRITICAL FIELD; THERMODYNAMICS;

D O I：

10.1103/PhysRevA.86.053607

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Motivated by recent experiments measuring the spin transport in ultracold unitary atomic Fermi gases [Sommer et al., Nature (London) 472, 201 (2011); Sommer et al., New J. Phys. 13, 055009 (2011)], we explore the theory of spin and heat transport in a three-dimensional spin-polarized atomic Fermi gas. We develop estimates of spin and thermal diffusivities and discuss magnetocaloric effects, namely the the spin Seebeck and spin Peltier effects. We estimate these transport coefficients using a Boltzmann kinetic equation in the classical regime and present experimentally accessible signatures of the spin Seebeck effect. We study an exactly solvable model that illustrates the role of momentum-dependent scattering in the magnetocaloric effects.

引用

页数：16

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