Biaxial nematic phases in ultracold dipolar Fermi gases

Details Biaxial nematic phases in ultracold dipolar Fermi gases Biaxial nematic phases in ultracold dipolar Fermi gases

2009-02-04

arxiv.org/abs/0902.0739v2

New Journal of Physics, 11 103003 (2009)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 figure; clarifying comments added to text

Scientific paper

Ultracold dipolar Fermi gases represent relatively unexplored, strongly correlated systems arising from long-range and anisotropic interactions. We demonstrate the possibility of a spontaneous symmetry breaking biaxial phase in these systems, which may be realized in, e.g., gases of ultracold polar molecules or strongly magnetic atoms. This biaxial nematic phase is manifest in a spontaneous distortion of the Fermi surface perpendicular to the axis of polarization. We describe these dipolar interaction induced phases using Landau Fermi liquid theory.

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