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https://github.com/pfloos/quack
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39 lines
915 B
Fortran
39 lines
915 B
Fortran
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subroutine renormalization_factor_SRG(eta,nBas,nC,nO,nV,nR,nS,e,Omega,rho,Z)
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! Compute renormalization factor for GW
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implicit none
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include 'parameters.h'
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! Input variables
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double precision,intent(in) :: eta
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integer,intent(in) :: nBas
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integer,intent(in) :: nC
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integer,intent(in) :: nO
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integer,intent(in) :: nV
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integer,intent(in) :: nR
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integer,intent(in) :: nS
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double precision,intent(in) :: e(nBas)
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double precision,intent(in) :: Omega(nS)
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double precision,intent(in) :: rho(nBas,nBas,nS)
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! Local variables
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integer :: p,i,a,jb
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double precision :: eps
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! Output variables
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double precision,intent(out) :: Z(nBas)
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! Initialize
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Z(:) = 0d0
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! Compute renormalization factor from derivative of SigC
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Z(:) = 1d0/(1d0 - Z(:))
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end subroutine renormalization_factor_SRG
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