TDDeltaStrength
TDDeltaStrength
Section Time-Dependent::Response
Type float
Default 0
When no laser is applied, a delta (in time) perturbation with
strength TDDeltaStrength can be applied. This is used to
calculate, e.g., the linear optical spectra. If the ions are
allowed to move, the kick will affect them also.
The electric field is $-(\hbar k / e) \delta(t)$ for a dipole with
zero wavevector, where k = TDDeltaStrength, which causes
the wavefunctions instantaneously to acquire a phase $e^{ikx}$.
The unit is inverse length.