Castaing's instability in a trapped ultra-cold gas

JN Fuchs; O Prevote; Dimitri Gangardt

doi:10.1140/epjd/e2003-00204-8

Castaing's instability in a trapped ultra-cold gas

JN Fuchs, O Prevote, Dimitri Gangardt

Physics and Astronomy

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3 Citations (Scopus)

Abstract

We consider a trapped ultra-cold gas of (non-condensed) bosons with two internal states (described by a pseudo spin) and study the stability of a longitudinal pseudo spin polarization gradient. For this purpose, we numerically solve a kinetic equation corresponding to a situation close to the experiment at JILA [1]. It shows the presence of Castaing's instability of transverse spin polarization fluctuations at long wavelengths. This phenomenon could be used to create spontaneous transverse spin waves.

Original language	English
Pages (from-to)	167-171
Number of pages	5
Journal	European Physical Journal D
Volume	25
Issue number	2
DOIs	https://doi.org/10.1140/epjd/e2003-00204-8
Publication status	Published - 1 Aug 2003

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title = "Castaing's instability in a trapped ultra-cold gas",

abstract = "We consider a trapped ultra-cold gas of (non-condensed) bosons with two internal states (described by a pseudo spin) and study the stability of a longitudinal pseudo spin polarization gradient. For this purpose, we numerically solve a kinetic equation corresponding to a situation close to the experiment at JILA [1]. It shows the presence of Castaing's instability of transverse spin polarization fluctuations at long wavelengths. This phenomenon could be used to create spontaneous transverse spin waves.",

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year = "2003",

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doi = "10.1140/epjd/e2003-00204-8",

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T1 - Castaing's instability in a trapped ultra-cold gas

AU - Fuchs, JN

AU - Prevote, O

AU - Gangardt, Dimitri

PY - 2003/8/1

Y1 - 2003/8/1

N2 - We consider a trapped ultra-cold gas of (non-condensed) bosons with two internal states (described by a pseudo spin) and study the stability of a longitudinal pseudo spin polarization gradient. For this purpose, we numerically solve a kinetic equation corresponding to a situation close to the experiment at JILA [1]. It shows the presence of Castaing's instability of transverse spin polarization fluctuations at long wavelengths. This phenomenon could be used to create spontaneous transverse spin waves.

AB - We consider a trapped ultra-cold gas of (non-condensed) bosons with two internal states (described by a pseudo spin) and study the stability of a longitudinal pseudo spin polarization gradient. For this purpose, we numerically solve a kinetic equation corresponding to a situation close to the experiment at JILA [1]. It shows the presence of Castaing's instability of transverse spin polarization fluctuations at long wavelengths. This phenomenon could be used to create spontaneous transverse spin waves.

U2 - 10.1140/epjd/e2003-00204-8

DO - 10.1140/epjd/e2003-00204-8

M3 - Article

SN - 1434-6079

VL - 25

SP - 167

EP - 171

JO - European Physical Journal D

JF - European Physical Journal D

IS - 2

ER -

Castaing's instability in a trapped ultra-cold gas

Abstract

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