  A nonlocal quantum model is presented for calculating the atomic dielectric
response to a strong laser electric field. By replacing the Coulomb potential
with a nonlocal potential in the Schrodinger equation, a 3+1D calculation of
the time-dependent electric dipole moment can be replaced with a 0+1D integral
equation, offering significant computational savings. The model is benchmarked
against an established ionization model and \textit{ab initio} simulation of
the time-dependent Schrodinger equation. The reduced computational overhead
makes the model a promising candidate to incorporate full quantum mechanical
time dynamics in laser pulse propagation simulations.
