Propagators
Work in progress!
Propagators are implemented as a state machine. In every iteration step of the main td-loop (see Time Propagation), each the propagator is progressed by one algorithmic step.
- Description of the propagator class
 - Description of the algorithm class
 - Examples are:
- Verlet algorithm (details on how to implement propagators)
 - Beeman algorithm (example of predictor-corrector propagators)
 - exponential midpoint algorithm