  Local spin fluctuations provide the glue for orbital-singlet spin-triplet
pairing in the doped Mott insulating regime of multi-orbital Hubbard models. At
large Hubbard repulsion $U$, the pairing susceptibility is nevertheless very
low, because the pairing interaction cannot overcome the suppression of charge
fluctuations. Using nonequilibrium dynamical mean field simulations of the
two-orbital Hubbard model, we show that out of equilibrium the pairing
susceptibility in this large-$U$ regime can be strongly enhanced by creating a
photo-induced population of the relevant charge states, and that this
susceptibility correlates with the local spin susceptibility. Since a strong
enhancement of the pairing requires a low kinetic energy of the charge
carriers, the phenomenon is supported by the ultra-fast cooling of the
photo-doped carriers through the creation of local spin excitations.
