get_n_SDs Function

public elemental function get_n_SDs(GAS_spec, N, S_z) result(n_SDs)

Return the number of Slater-determinants. These are the number of alpha/beta electrons and the number of spatial orbitals per GAS space


Type IntentOptional Attributes Name
class(GASSpec_t), intent(in) :: GAS_spec

GAS specification.

integer, intent(in) :: N

The number of particles

type(SpinProj_t), intent(in) :: S_z

Spin projection

Return Value integer(kind=int64)