  We present results from pulsed-power driven differentially rotating plasma
experiments designed to simulate physics relevant to astrophysical disks and
jets. In these experiments, angular momentum is injected by the ram pressure of
the ablation flows from a wire array Z pinch. In contrast to previous liquid
metal and plasma experiments, rotation is not driven by boundary forces. Axial
pressure gradients launch a rotating plasma jet upwards, which is confined by a
combination of ram, thermal, and magnetic pressure of a surrounding plasma
halo. The jet has subsonic rotation, with a maximum rotation velocity $23 \pm
3$ km/s. The rotational velocity profile is quasi-Keplerian with a positive
Rayleigh discriminant $\kappa^2 \propto r^{-2.8\pm0.8}$ rad$^2$/s$^2$. The
plasma completes $0.5 - 2$ full rotations in the experimental time frame ($\sim
150$ ns).
