Rapid preparation and characterization of low entropy SU(N) Fermi gases

We use $^{87}$Sr atoms to study a deeply degenerate Fermi gas under SU(N) symmetry, where N can be as large as 10. We demonstrate enhanced interactions in a 3D $^{87}$Sr degenerate gas. Using all 10 spin states during evaporation allows us to have efficient sample preparation while reaching deep degeneracy, with ${T/T_F = 0.07}$ in under 3 s. We also characterize the SU(N) gas by observing anisotropic expansion in time-of-flight and by examining density fluctuations in the gas. We show that SU(N) $\-$ symmetric interactions significantly modify the behavior of a non- interacting Fermi gas and need to be accurately accounted for to extract thermodynamic properties.