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Heat and spin transport in a cold atomic Fermi gas

Author(s): Kim, Hyungwon; Huse, David A

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Abstract: 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.
Publication Date: Nov-2012
Electronic Publication Date: 8-Nov-2012
Citation: Kim, Hyungwon, Huse, David A. (2012). Heat and spin transport in a cold atomic Fermi gas. Physical Review A, 86 (5), 10.1103/PhysRevA.86.053607
DOI: doi:10.1103/PhysRevA.86.053607
ISSN: 1050-2947
EISSN: 1094-1622
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review A
Version: Author's manuscript

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