Name NDSFATimeIntegrationStep
Section Hamiltonian
Type float
Default 0.01
Timestep for the integration of the NDSFA first order
response numerically as prescribed in Phys. Rev. A 101, 043408 (2020).
Typically needs to be an order of magniude less than
the TDtimestep. However, for writing "laser" the TDtimestep
is used instead.