Inhomogeneous Spin Diffusion in Traps with Cold Atoms

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Inhomogeneous Spin Diffusion in Traps with Cold Atoms. / Heiselberg, Henning.

In: Physical Review Letters, Vol. 108, No. 245303, 2012.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Heiselberg, Henning / Inhomogeneous Spin Diffusion in Traps with Cold Atoms.

In: Physical Review Letters, Vol. 108, No. 245303, 2012.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{fe70b60fd5894de8acb24420b3e0c188,
title = "Inhomogeneous Spin Diffusion in Traps with Cold Atoms",
publisher = "American Physical Society",
author = "Henning Heiselberg",
year = "2012",
doi = "10.1103/PhysRevLett.108.245303",
volume = "108",
number = "245303",
journal = "Physical Review Letters",
issn = "0031-9007",

}

RIS

TY - JOUR

T1 - Inhomogeneous Spin Diffusion in Traps with Cold Atoms

A1 - Heiselberg,Henning

AU - Heiselberg,Henning

PB - American Physical Society

PY - 2012

Y1 - 2012

N2 - The spin diusion and damped oscillations are studied in the collision of two spin polarized clouds of cold atoms with resonant interactions. The strong density dependence of the diusion coecient leads to inhomogeneous spin diusion that changes from central to surface spin ow as the temperature increases. The inhomogeneity and the smaller nite trap size signicantly reduce the spin diusion rate at low temperatures. The resulting spin diusion rates and spin drag at longer time scales are compatible with measurements at low to high temperatures for resonant attractive interactions but are incompatible with a metastable ferromagnetic phase. This does not exclude that the colliding clouds can evolve into a repulsive initial state which subsequently decays during<br/>the bounce and the initial damped oscillations.

AB - The spin diusion and damped oscillations are studied in the collision of two spin polarized clouds of cold atoms with resonant interactions. The strong density dependence of the diusion coecient leads to inhomogeneous spin diusion that changes from central to surface spin ow as the temperature increases. The inhomogeneity and the smaller nite trap size signicantly reduce the spin diusion rate at low temperatures. The resulting spin diusion rates and spin drag at longer time scales are compatible with measurements at low to high temperatures for resonant attractive interactions but are incompatible with a metastable ferromagnetic phase. This does not exclude that the colliding clouds can evolve into a repulsive initial state which subsequently decays during<br/>the bounce and the initial damped oscillations.

U2 - 10.1103/PhysRevLett.108.245303

DO - 10.1103/PhysRevLett.108.245303

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 245303

VL - 108

ER -