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