  The time-dependent Mott transition in a periodic Anderson model with
off-site, nearest-neighbor hybridization is studied within the framework of
nonequilibrium self-energy functional theory. Using the two-site
dynamical-impurity approximation, we compute the real-time dynamics of the
optimal variational parameter and of different observables initiated by sudden
quenches of the Hubbard-U and identify the critical interaction. The
time-dependent transition is orbital selective, i.e., in the final state,
reached in the long-time limit after the quench to the critical interaction,
the Mott gap opens in the spectral function of the localized orbitals only. We
discuss the dependence of the critical interaction and of the final-state
effective temperature on the hybridization strength and point out the various
similarities between the nonequilibrium and the equilibrium Mott transition. It
is shown that these can also be smoothly connected to each other by increasing
the duration of a U-ramp from a sudden quench to a quasi-static process. The
physics found for the model with off-site hybridization is compared with the
dynamical Mott transition in the single-orbital Hubbard model and with the
dynamical crossover found for the real-time dynamics of the conventional
Anderson lattice with on-site hybridization.

Strongly Correlated Electrons;Quantum Gases