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arXiv · 0902.0739

Biaxial nematic phases in ultracold dipolar Fermi gases

Benjamin M. Fregoso·Kai Sun·Eduardo Fradkin·Benjamin L. Lev
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Abstract

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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Benjamin M. Fregoso, Kai Sun, Eduardo Fradkin, Benjamin L. Lev. 2009-03-25. Biaxial nematic phases in ultracold dipolar Fermi gases. https://doi.org/10.1088/1367-2630%2F11%2F10%2F103003

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