Itinerant ferromagnetism in one-dimensional two-component Fermi gases

Yuzhu Jiang; D. V. Kurlov; Xi Wen Guan; F. Schreck; G. V. Shlyapnikov

doi:10.1103/PhysRevA.94.011601

Itinerant ferromagnetism in one-dimensional two-component Fermi gases

Yuzhu Jiang, D. V. Kurlov, Xi Wen Guan, F. Schreck, G. V. Shlyapnikov

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17 Citations (Scopus)

Abstract

We study a one-dimensional (1D) two-component atomic Fermi gas with an infinite intercomponent contact repulsion. It is found that adding an attractive nearly resonant odd-wave interaction breaking the rotational symmetry one can make the ground state ferromagnetic. A promising system for the observation of this itinerant ferromagnetic state is a 1D gas of K40 atoms, where three dimensional s-wave and p-wave Feshbach resonances are very close to each other and the 1D confinement significantly reduces the inelastic decay.

Original language	English
Article number	011601
Journal	Physical Review A
Volume	94
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.94.011601
Publication status	Published - 5 Jul 2016

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AU - Shlyapnikov, G. V.

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AB - We study a one-dimensional (1D) two-component atomic Fermi gas with an infinite intercomponent contact repulsion. It is found that adding an attractive nearly resonant odd-wave interaction breaking the rotational symmetry one can make the ground state ferromagnetic. A promising system for the observation of this itinerant ferromagnetic state is a 1D gas of K40 atoms, where three dimensional s-wave and p-wave Feshbach resonances are very close to each other and the 1D confinement significantly reduces the inelastic decay.

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Itinerant ferromagnetism in one-dimensional two-component Fermi gases

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