Fermi surface resonance and quantum criticality in strongly interacting Fermi gases

Fermions in a Fermi gas obey the Pauli exclusion principle restricting any two fermions from occupying same quantum state. Strong interactions between can completely change properties of gas. In our theoretical study we find an exotic phase strongly interacting gases subject to certain condition imposed on surfaces that call surface resonance. The is critical time and space be identified by power-law dependence spectral density frequency momentum. linear-response functions are singular static limit at Kohn anomalies. We analyze state finite temperatures $T$ size $L$ provide qualitative $L\ensuremath{-}T$ diagram. experimentally found typical semiconductor heterostructures.