Longitudinal spin waves in a dilute Bose gas

被引：51

作者：

Williams, JE ^{[1
]}

Nikuni, T

Clark, CW

机构：

[1] US Dept Commerce, Natl Inst Stand & Technol, Technol Adm, Gaithersburg, MD 20899 USA

[2] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.88.230405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a kinetic theory for a dilute noncondensed Bose gas of two-level atoms that predicts the transient spin segregation observed in a recent experiment. The underlying mechanism driving spin currents in the gas is due to a mean-field effect arising from the quantum interference between the direct and exchange scattering of atoms in different spin states. We numerically solve the spin Boltzmann equation, using a one-dimensional model, and find excellent agreement with experimental data.

引用

页数：4

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