This global, structured(!) variable contains all information about temporal discretization (TDSE or LvNE or CLE or QCLE), external fields, initial states etc., for time-dependent calculations using qm_propa and/or qm_control and/or qm_optimal. All of these settings are ignored when you run a time-independent calculation using qm_bound.
| Field name | Matlab type | description |
|---|---|---|
| time.dof | Cell vector of objects of classes from +init | Setting up initial wavefunction as product ¹ |
| time.corr | Object of class from +init | Setting up initial wavefunction (fully correlated) ¹ |
| time.propa | Object of class from +tmp | Choice of propagators (constant step size) |
| time.steps | Object of class +tmp/steps | Main time steps and sub-steps |
| time.efield | Object of class +tmp/efield | External electric field, interacting with dipoles and/or polarizabilities |
| time.hop | Object of class +hop | Main time steps and sub-steps |
| time.frog | Structure | Power spectral density and frequency resolved optical gating (for qm_optimal only) |
¹ There are two different ways of setting up an initial wave function, either as a direct product of one-dimensional functions or as a correlated N-dimensional function. For using these two options, see above for the fields time.dof or time.corr, respectively. Specify only one of them, never both!
| time.frog | Choice and settings for power spectral density and frequency resolved optical gating (FROG), only available for qm_optimal | default |
|---|---|---|
| choice | 'PG': polarization gate 'SHG': second harmonic generation 'Gauss': cross-correlate with Gaussian bell 'none': no FROG is calculated |
'none' |
| width | Width σ of Gaussian bell | time.main.delta |
| zoom | zoom factor for frequency axes of PSD and/or FROG plots | 1 |