Ferro-Nematic ground state of the dilute dipolar Fermi gas (2009)
Fregoso, Benjamin M., Fradkin, Eduardo
It is shown that a homogeneous two-component Fermi gas with (long range) dipolar and short-range isotropic interactions has a {\em ferro-nematic} phase for suitable values of the dipolar and...
Biaxial nematic phases in ultracold dipolar Fermi gases (2009)
Fregoso, Benjamin M., Sun, Kai, Fradkin, Eduardo, Lev, Benjamin L.
Ultracold dipolar Fermi gases represent relatively unexplored, strongly correlated systems arising from long-range and anisotropic interactions. We demonstrate the possibility of a spontaneous...
Sun, Kai, Fregoso, Benjamin M., Lawler, Michael J., Fradkin, Eduardo
We discuss the quantum phase transition between a quantum nematic metallic state to an electron metallic smectic state in terms of an order-parameter theory coupled to fermionic quasiparticles. Both...
Stability of trapped fermionic gases with attractive interactions (2006)
Fregoso, Benjamin M., Baym, Gordon
We present a unified overview, from the mean-field to the unitarity regime, of the stability of a trapped Fermi gas with short range attractive interactions. Unlike in a system of bosons, a Fermi gas...