Specifying the one-body potential $\hat{V}$:

The one-body potential $\hat{V}$ is specified in the file source/ini_guess_pot/Get_1bodyPotential.F. This file contains a Fortran subroutine with a case selection for the dimensionality of the treated problem. The potentials defined in this routine can be selected and modified with the input parameters whichpot, parameter1, parameter2, ..., parameter30 in MCTDHX.inp. Appendix A collects the predefined potentials and parameters. If a custom potential is desired, it has to be implementated in the file source/ini_guess_pot/Get_1bodyPotential.F (look there for the loops which are enclosed by the if- exceptions for whichpot .eq. custom1D/custom2D/custom3D, respectively).