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mirror of https://github.com/pfloos/quack synced 2024-12-25 13:53:41 +01:00
QuAcK/src/CC/form_abh.f90

106 lines
2.4 KiB
Fortran

subroutine form_abh(nC,nO,nV,nR,OOOO,OVOO,OOVV,VVVV,VOVV,OVVO,OVVV,t1,tau,aoooo,bvvvv,hovvo)
! Scuseria Eqs. (11),(12) and (13)
implicit none
! Input variables
integer,intent(in) :: nC,nO,nV,nR
double precision,intent(in) :: OOOO(nO,nO,nO,nO)
double precision,intent(in) :: OVOO(nO,nV,nO,nO)
double precision,intent(in) :: OOVV(nO,nO,nV,nV)
double precision,intent(in) :: OVVO(nO,nV,nV,nO)
double precision,intent(in) :: OVVV(nO,nV,nV,nV)
double precision,intent(in) :: VOVV(nV,nO,nV,nV)
double precision,intent(in) :: VVVV(nV,nV,nV,nV)
double precision,intent(in) :: t1(nO,nV)
double precision,intent(in) :: tau(nO,nO,nV,nV)
! Local variables
integer :: i,j,k,l
integer :: a,b,c,d
! Output variables
double precision,intent(out) :: aoooo(nO,nO,nO,nO)
double precision,intent(out) :: bvvvv(nV,nV,nV,nV)
double precision,intent(out) :: hovvo(nO,nV,nV,nO)
aoooo(:,:,:,:) = OOOO(:,:,:,:)
do i=nC+1,nO
do j=nC+1,nO
do k=nC+1,nO
do l=nC+1,nO
do c=1,nV-nR
aoooo(i,j,k,l) = aoooo(i,j,k,l) + OVOO(i,c,k,l)*t1(j,c)
end do
do c=1,nV-nR
aoooo(i,j,k,l) = aoooo(i,j,k,l) - OVOO(j,c,k,l)*t1(i,c)
end do
do c=1,nV-nR
do d=1,nV-nR
aoooo(i,j,k,l) = aoooo(i,j,k,l) + OOVV(k,l,c,d)*tau(i,j,c,d)
end do
end do
end do
end do
end do
end do
bvvvv(:,:,:,:) = VVVV(:,:,:,:)
do c=1,nV-nR
do d=1,nV-nR
do a=1,nV-nR
do b=1,nV-nR
do k=nC+1,nO
bvvvv(c,d,a,b) = bvvvv(c,d,a,b) - VOVV(a,k,c,d)*t1(k,b)
end do
do k=nC+1,nO
bvvvv(c,d,a,b) = bvvvv(c,d,a,b) + VOVV(b,k,c,d)*t1(k,a)
end do
end do
end do
end do
end do
hovvo(:,:,:,:) = OVVO(:,:,:,:)
do i=nC+1,nO
do c=1,nV-nR
do a=1,nV-nR
do k=nC+1,nO
do l=nC+1,nO
hovvo(i,c,a,k) = hovvo(i,c,a,k) - OVOO(i,c,l,k)*t1(l,a)
end do
do d=1,nV-nR
hovvo(i,c,a,k) = hovvo(i,c,a,k) + OVVV(k,a,c,d)*t1(i,d)
end do
do l=nC+1,nO
do d=1,nV-nR
hovvo(i,c,a,k) = hovvo(i,c,a,k) - OOVV(k,l,c,d)*tau(i,l,d,a)
end do
end do
end do
end do
end do
end do
end subroutine form_abh