10
1
mirror of https://github.com/pfloos/quack synced 2025-04-07 09:21:35 +02:00
QuAcK/src/Parquet/R_pp_triplet_Phi.f90

45 lines
1.3 KiB
Fortran

subroutine R_pp_triplet_Phi(nOrb,nC,nR,nOO,nVV,ee_trip_Om,ee_trip_rho,hh_trip_Om,hh_trip_rho,pp_trip_Phi)
! Compute irreducible vertex in the triplet pp channel
implicit none
! Input variables
integer,intent(in) :: nOrb,nC,nR,nOO,nVV
double precision,intent(in) :: ee_trip_Om(nVV)
double precision,intent(in) :: ee_trip_rho(nOrb,nOrb,nVV)
double precision,intent(in) :: hh_trip_Om(nOO)
double precision,intent(in) :: hh_trip_rho(nOrb,nOrb,nOO)
! Local variables
integer :: p,q,r,s
integer :: n
! Output variables
double precision,intent(out) :: pp_trip_Phi(nOrb,nOrb,nOrb,nOrb)
! Initialization
pp_trip_Phi(:,:,:,:) = 0d0
do s = nC+1, nOrb-nR
do r = nC+1, nOrb-nR
do q = nC+1, nOrb-nR
do p = nC+1, nOrb-nR
do n=1,nVV
pp_trip_Phi(p,q,r,s) = pp_trip_Phi(p,q,r,s) &
+ 2d0 * ee_trip_rho(p,q,n)*ee_trip_rho(r,s,n)/ee_trip_Om(n)
end do
do n=1,nOO
pp_trip_Phi(p,q,r,s) = pp_trip_Phi(p,q,r,s) &
- 2d0 * hh_trip_rho(p,q,n)*hh_trip_rho(r,s,n)/hh_trip_Om(n)
end do
enddo
enddo
enddo
enddo
end subroutine