Perfect Fluids and Bad Metals: Transport Analogies Between Ultracold Fermi Gases and High $T_c$ Superconductors

Understand

In this paper, we examine in a unified fashion dissipative transport in strongly correlated systems.

• We thereby demonstrate the connection between "bad metals" (such as the high temperature superconductors) and "perfect fluids" (such as the ultracold Fermi gases, near unitarity).
• One motivation of this work is to communicate to the high energy physics community some of the central unsolved problems in high $T_c$ superconductors.
• Because of interest in the nearly perfect fluidity of the cold gases and because of new tools such as the AdS/CFT correspondence, this better communication may lead to important progress in a variety of different fields.