  We study the important, yet widely overlooked, role of gluons for spin
transport with a connection to local parity violation in quark gluon plasmas.
We employ the formalism of quantum kinetic theory to quarks in weakly coupled
quantum chromodynamics to derive the source terms for quark spin polarization.
These source terms involve parity-odd correlators of dynamically generated
color fields in near-equilibrium quark gluon plasmas and give rise to locally
fluctuating axial charge currents. Our results provide a possible explanation
for the spin alignment of vector mesons measured in high-energy nuclear
collisions.
