The shear viscosity of a two component Fermi gas with unequal population at low temperatures

The shear viscosity of spin-polarized Fermi gas at low temperatures is calculated by using the Green’s functions method. In the BEC limit where a Feshbach resonance gives rise to tightly bound dimer molecules, the contributions of the interactions between dimer–atom and imer–dimer take into account to the viscous relaxation rate.