Itinerant Ferromagnetism in Ultracold Fermi Gases

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

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Itinerant Ferromagnetism in Ultracold Fermi Gases. / Heiselberg, Henning.

In: Physical Review A (Atomic, Molecular and Optical Physics), Vol. 83, No. 053635, 2012.

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

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Author

Heiselberg, Henning / Itinerant Ferromagnetism in Ultracold Fermi Gases.

In: Physical Review A (Atomic, Molecular and Optical Physics), Vol. 83, No. 053635, 2012.

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

Bibtex

@article{0be96f49f59245bb92def81895e709af,
title = "Itinerant Ferromagnetism in Ultracold Fermi Gases",
publisher = "American Physical Society",
author = "Henning Heiselberg",
year = "2012",
doi = "10.1103/PhysRevA.83.053635",
volume = "83",
number = "053635",
journal = "Physical Review A (Atomic, Molecular and Optical Physics)",
issn = "1050-2947",

}

RIS

TY - JOUR

T1 - Itinerant Ferromagnetism in Ultracold Fermi Gases

A1 - Heiselberg,Henning

AU - Heiselberg,Henning

PB - American Physical Society

PY - 2012

Y1 - 2012

N2 - Itinerant ferromagnetism in cold Fermi gases with repulsive interactions is studied applying the Jastrow-Slater approximation generalized to finite polarization and temperature. For two components at zero temperature a second order transition is found at akF ≃ 0.90 compatible with QMC.<br/>Thermodynamic functions and observables such as the compressibility and spin susceptibility and the resulting fluctuations in number and spin are calculated. For trapped gases the resulting cloud radii and kinetic energies are calculated and compared to recent experiments. Spin polarized systems<br/>are recommended for effective separation of large ferromagnetic domains. Collective modes are predicted and tri-critical points are calculated for multi-component systems.

AB - Itinerant ferromagnetism in cold Fermi gases with repulsive interactions is studied applying the Jastrow-Slater approximation generalized to finite polarization and temperature. For two components at zero temperature a second order transition is found at akF ≃ 0.90 compatible with QMC.<br/>Thermodynamic functions and observables such as the compressibility and spin susceptibility and the resulting fluctuations in number and spin are calculated. For trapped gases the resulting cloud radii and kinetic energies are calculated and compared to recent experiments. Spin polarized systems<br/>are recommended for effective separation of large ferromagnetic domains. Collective modes are predicted and tri-critical points are calculated for multi-component systems.

U2 - 10.1103/PhysRevA.83.053635

DO - 10.1103/PhysRevA.83.053635

JO - Physical Review A (Atomic, Molecular and Optical Physics)

JF - Physical Review A (Atomic, Molecular and Optical Physics)

SN - 1050-2947

IS - 053635

VL - 83

ER -