Simulations provide the highest-level interface in TeNPy. They represent one simulation from start (initializing the various classes from given parameters) to end (saving the results to a file). The idea is that they contain the full package of code that you run by a job on a computing cluster. (You don’t have to stick to that rule, of course.) In fact, any simulation can be run from the command line, given only a parameter file as input, like this:
python -m tenpy -c SimulationClassName parameters.yml # or alternatively, if tenpy is installed correctly: tenpy-run -c SimulationClassName parameters.yml
Of course, you should replace SimulationClassName with the class name of the simulation class you want to use, for
RealTimeEvolution. For more details, see
In some cases, this might not be enough, and you want to do some pre- or post-processing, or just do something a litte bit differently during the simulation. In that case, you can also define your own simulation class (as subclass of one the existing ones).