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mirror of https://github.com/TREX-CoE/irpjast.git synced 2024-12-24 21:34:04 +01:00
irpjast/orders.irp.f
2021-01-25 00:16:09 +01:00

142 lines
2.9 KiB
Fortran

BEGIN_PROVIDER [integer, naord]
implicit none
BEGIN_DOC
! Expansion order for f_en
END_DOC
naord = 5
END_PROVIDER
BEGIN_PROVIDER [integer, nbord]
implicit none
BEGIN_DOC
! Expansion order for f_ee
END_DOC
nbord = 5
END_PROVIDER
BEGIN_PROVIDER [integer, ncord]
implicit none
BEGIN_DOC
! Expansion order for f_een
END_DOC
ncord = 5
END_PROVIDER
BEGIN_PROVIDER [integer, dim_cord_vect]
implicit none
BEGIN_DOC
! Recomputes the length of the unique C coefficients
END_DOC
integer :: k, p, l, lmax
dim_cord_vect = 0
do p = 2, ncord
do k = p - 1, 0, -1
if ( k /= 0 ) then
lmax = p - k
else
lmax = p - k - 2
end if
do l = lmax, 0, -1
if (iand(p - k - l, 1) == 1) cycle
dim_cord_vect = dim_cord_vect + 1
end do
end do
end do
END_PROVIDER
BEGIN_PROVIDER [ integer, lkpm_of_cindex, (4,dim_cord_vect) ]
implicit none
BEGIN_DOC
! Transform l,k,p into a consecutive index
END_DOC
integer :: p,k,l,lmax,m
integer :: kk
kk=0
do p = 2, ncord
do k = p - 1, 0, -1
if ( k /= 0 ) then
lmax = p - k
else
lmax = p - k - 2
end if
do l = lmax, 0, -1
if (iand(p - k - l, 1) == 1) cycle
m = (p - k - l) / 2
kk = kk+1
lkpm_of_cindex(1,kk) = l
lkpm_of_cindex(2,kk) = k
lkpm_of_cindex(3,kk) = p
lkpm_of_cindex(4,kk) = m
enddo
enddo
enddo
END_PROVIDER
BEGIN_PROVIDER [double precision, aord_vect, (naord + 1, typenuc)]
&BEGIN_PROVIDER [double precision, bord_vect, (nbord + 1)]
&BEGIN_PROVIDER [double precision, cord_vect, (dim_cord_vect, typenuc)]
implicit none
BEGIN_DOC
! Read Jastow coefficients from file
END_DOC
PROVIDE naord
PROVIDE nbord
PROVIDE ncord
character(len=*), parameter :: FILE_NAME = "jast_coeffs.txt"
integer :: i, fu, rc
open(action='read', file=FILE_NAME, iostat=rc, newunit=fu)
read(fu, *) aord_vect
read(fu, *) bord_vect
read(fu, *) cord_vect
close(fu)
END_PROVIDER
BEGIN_PROVIDER [ double precision, cord_vect_full, (dim_cord_vect, nnuc) ]
implicit none
BEGIN_DOC
! cord_vect for all atoms
END_DOC
integer :: a
do a=1,nnuc
cord_vect_full(1:dim_cord_vect,a) = cord_vect(1:dim_cord_vect,typenuc_arr(a))
enddo
END_PROVIDER
BEGIN_PROVIDER [ double precision, cord_vect_lkp, (0:ncord-1, 0:ncord-1, 2:ncord, typenuc) ]
implicit none
BEGIN_DOC
! Creates c-tensor with right order of the indexes p, k, l
END_DOC
integer :: alpha, l, k, p, lmax, cindex
cord_vect_lkp = 0.0d0
do alpha = 1, typenuc
cindex = 0
do p = 2, ncord
do k = p - 1, 0, -1
if ( k /= 0 ) then
lmax = p - k
else
lmax = p - k - 2
end if
do l = lmax, 0, -1
if (iand(p - k - l, 1) == 1) cycle
cindex = cindex + 1
cord_vect_lkp(l, k, p, alpha) = cord_vect(cindex, alpha)
end do
end do
end do
end do
END_PROVIDER