These are instruction for using the source files for the numerical calculations.

1) To recreate the plots in the paper, open the python file 'prftSpectroscopyPlot.py'. Search for the program section which corresponds to the desired figures (see comments in the program), remove the apostrophes surrounding this section such that the code can be executed. Simply running the code will reproduce the figure. Each program part specifies also the data source file (in npy format). The correspond data file can be found in the folder lists0

2) Do reproduce the source data, run the corresponding  program in the file 'prftSpectroscopyMain.py'. The programs are order according to the figures in the paper. See also the comments in that file for orientation. By choosing the indices in the variable task_ls at the top of the file, one can specify the program which shall be evaluated. The outcome of the calculations will be stored in the folder lists0


3) The files 'prftSpectroscopyAuxTwoLevelSystem.py', 'prftSpectroscopyAuxExtendedLambdaSystem.py' and 'prftSpectroscopyAux.py' contain auxiliary program, which are called by the programs in 'prftSpectroscopyMain.py'.


4) The filed 'floquetSpectroscoyTwoLevelSystemAnalyticalCalculations.py' contains a program which assists in the analytical calculation. Simply running the program will reproduce the characteristic polynomial of the dissipative two-level system given in Eq. (C6) of the paper.