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SRG-qsUGW
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@ -100,9 +100,9 @@ subroutine SRG_qsGW(dotest,maxSCF,thresh,max_diis,doACFDT,exchange_kernel,doXBS,
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! Hello world
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write(*,*)
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write(*,*)'************************************************'
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write(*,*)'| Self-consistent SRG-qsGW calculation |'
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write(*,*)'************************************************'
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write(*,*)'***********************************'
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write(*,*)'* Restricted SRG-qsGW Calculation *'
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write(*,*)'***********************************'
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write(*,*)
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! Warning
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425
src/GW/SRG_qsUGW.f90
Normal file
425
src/GW/SRG_qsUGW.f90
Normal file
@ -0,0 +1,425 @@
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subroutine SRG_qsUGW(dotest,maxSCF,thresh,max_diis,doACFDT,exchange_kernel,doXBS,BSE,TDA_W,TDA,dBSE,dTDA,spin_conserved,spin_flip, &
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eta,regularize,nNuc,ZNuc,rNuc,ENuc,nBas,nC,nO,nV,nR,nS,EUHF,S,X,T,V,Hc,ERI_AO,ERI_aaaa,ERI_aabb,ERI_bbbb, &
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dipole_int_AO,dipole_int_aa,dipole_int_bb,PHF,cHF,eHF)
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! Perform a quasiparticle self-consistent GW calculation
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implicit none
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include 'parameters.h'
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! Input variables
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logical,intent(in) :: dotest
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integer,intent(in) :: maxSCF
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integer,intent(in) :: max_diis
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double precision,intent(in) :: thresh
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logical,intent(in) :: doACFDT
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logical,intent(in) :: exchange_kernel
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logical,intent(in) :: doXBS
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logical,intent(in) :: BSE
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logical,intent(in) :: TDA_W
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logical,intent(in) :: TDA
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logical,intent(in) :: dBSE
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logical,intent(in) :: dTDA
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logical,intent(in) :: spin_conserved
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logical,intent(in) :: spin_flip
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double precision,intent(in) :: eta
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logical,intent(in) :: regularize
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integer,intent(in) :: nNuc
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double precision,intent(in) :: ZNuc(nNuc)
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double precision,intent(in) :: rNuc(nNuc,ncart)
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double precision,intent(in) :: ENuc
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integer,intent(in) :: nBas
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integer,intent(in) :: nC(nspin)
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integer,intent(in) :: nO(nspin)
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integer,intent(in) :: nV(nspin)
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integer,intent(in) :: nR(nspin)
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integer,intent(in) :: nS(nspin)
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double precision,intent(in) :: EUHF
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double precision,intent(in) :: eHF(nBas,nspin)
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double precision,intent(in) :: cHF(nBas,nBas,nspin)
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double precision,intent(in) :: PHF(nBas,nBas,nspin)
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double precision,intent(in) :: S(nBas,nBas)
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double precision,intent(in) :: T(nBas,nBas)
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double precision,intent(in) :: V(nBas,nBas)
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double precision,intent(in) :: Hc(nBas,nBas)
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double precision,intent(in) :: X(nBas,nBas)
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double precision,intent(in) :: ERI_AO(nBas,nBas,nBas,nBas)
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double precision,intent(inout):: ERI_aaaa(nBas,nBas,nBas,nBas)
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double precision,intent(inout):: ERI_aabb(nBas,nBas,nBas,nBas)
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double precision,intent(inout):: ERI_bbbb(nBas,nBas,nBas,nBas)
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double precision,intent(in) :: dipole_int_AO(nBas,nBas,ncart)
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double precision,intent(inout):: dipole_int_aa(nBas,nBas,ncart)
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double precision,intent(inout):: dipole_int_bb(nBas,nBas,ncart)
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! Local variables
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logical :: dRPA
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integer :: nSCF
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integer :: nBasSq
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integer :: ispin
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integer :: ixyz
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integer :: is
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integer :: n_diis
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integer :: nSa,nSb,nSt
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double precision :: dipole(ncart)
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double precision :: ET(nspin)
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double precision :: EV(nspin)
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double precision :: EJ(nsp)
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double precision :: EK(nspin)
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double precision :: EcRPA(nspin)
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double precision :: EcGM(nspin)
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double precision :: EqsGW
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double precision :: EcBSE(nspin)
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double precision :: Conv
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double precision :: rcond(nspin)
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double precision,external :: trace_matrix
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double precision,allocatable :: err_diis(:,:,:)
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double precision,allocatable :: F_diis(:,:,:)
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double precision,allocatable :: Aph(:,:)
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double precision,allocatable :: Bph(:,:)
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double precision,allocatable :: Om(:)
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double precision,allocatable :: XpY(:,:)
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double precision,allocatable :: XmY(:,:)
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double precision,allocatable :: rho(:,:,:,:)
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double precision,allocatable :: c(:,:,:)
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double precision,allocatable :: cp(:,:,:)
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double precision,allocatable :: eGW(:,:)
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double precision,allocatable :: P(:,:,:)
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double precision,allocatable :: F(:,:,:)
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double precision,allocatable :: Fp(:,:,:)
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double precision,allocatable :: J(:,:,:)
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double precision,allocatable :: K(:,:,:)
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double precision,allocatable :: SigC(:,:,:)
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double precision,allocatable :: SigCp(:,:,:)
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double precision,allocatable :: Z(:,:)
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double precision,allocatable :: err(:,:,:)
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! Hello world
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write(*,*)
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write(*,*)'*************************************'
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write(*,*)'* Unrestricted SRG-qsGW Calculation *'
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write(*,*)'*************************************'
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write(*,*)
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! Warning
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write(*,*) '!! ERIs in MO basis will be overwritten in qsUGW !!'
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write(*,*)
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! Stuff
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nBasSq = nBas*nBas
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dRPA = .true.
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! TDA for W
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if(TDA_W) then
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write(*,*) 'Tamm-Dancoff approximation for dynamic screening!'
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write(*,*)
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end if
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! TDA
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if(TDA) then
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write(*,*) 'Tamm-Dancoff approximation activated!'
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write(*,*)
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end if
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! Memory allocation
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nSa = nS(1)
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nSb = nS(2)
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nSt = nSa + nSb
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allocate(Aph(nSt,nSt),Bph(nSt,nSt),eGW(nBas,nspin),c(nBas,nBas,nspin),cp(nBas,nBas,nspin),P(nBas,nBas,nspin), &
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F(nBas,nBas,nspin),Fp(nBas,nBas,nspin),J(nBas,nBas,nspin),K(nBas,nBas,nspin), &
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SigC(nBas,nBas,nspin),SigCp(nBas,nBas,nspin),Z(nBas,nspin),Om(nSt),XpY(nSt,nSt),XmY(nSt,nSt), &
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rho(nBas,nBas,nSt,nspin),err(nBas,nBas,nspin),err_diis(nBasSq,max_diis,nspin),F_diis(nBasSq,max_diis,nspin))
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! Initialization
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nSCF = -1
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n_diis = 0
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ispin = 1
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Conv = 1d0
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P(:,:,:) = PHF(:,:,:)
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eGW(:,:) = eHF(:,:)
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c(:,:,:) = cHF(:,:,:)
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F_diis(:,:,:) = 0d0
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err_diis(:,:,:) = 0d0
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rcond(:) = 0d0
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!------------------------------------------------------------------------
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! Main loop
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!------------------------------------------------------------------------
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do while(Conv > thresh .and. nSCF < maxSCF)
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! Increment
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nSCF = nSCF + 1
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! Buid Hartree matrix
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do is=1,nspin
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call Hartree_matrix_AO_basis(nBas,P(:,:,is),ERI_AO(:,:,:,:),J(:,:,is))
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end do
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! Compute exchange part of the self-energy
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do is=1,nspin
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call exchange_matrix_AO_basis(nBas,P(:,:,is),ERI_AO(:,:,:,:),K(:,:,is))
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end do
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!--------------------------------------------------
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! AO to MO transformation of two-electron integrals
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!--------------------------------------------------
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do ixyz=1,ncart
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call AOtoMO(nBas,c(:,:,1),dipole_int_AO(:,:,ixyz),dipole_int_aa(:,:,ixyz))
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call AOtoMO(nBas,c(:,:,2),dipole_int_AO(:,:,ixyz),dipole_int_bb(:,:,ixyz))
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end do
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! 4-index transform for (aa|aa) block
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call AOtoMO_ERI_UHF(1,1,nBas,c,ERI_AO,ERI_aaaa)
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! 4-index transform for (aa|bb) block
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call AOtoMO_ERI_UHF(1,2,nBas,c,ERI_AO,ERI_aabb)
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! 4-index transform for (bb|bb) block
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call AOtoMO_ERI_UHF(2,2,nBas,c,ERI_AO,ERI_bbbb)
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! Compute linear response
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call phULR_A(ispin,dRPA,nBas,nC,nO,nV,nR,nSa,nSb,nSt,1d0,eGW,ERI_aaaa,ERI_aabb,ERI_bbbb,Aph)
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if(.not.TDA) call phULR_B(ispin,dRPA,nBas,nC,nO,nV,nR,nSa,nSb,nSt,1d0,ERI_aaaa,ERI_aabb,ERI_bbbb,Bph)
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call phULR(TDA_W,nSa,nSb,nSt,Aph,Bph,EcRPA(ispin),Om,XpY,XmY)
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!----------------------!
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! Excitation densities !
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!----------------------!
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call UGW_excitation_density(nBas,nC,nO,nR,nSa,nSb,nSt,ERI_aaaa,ERI_aabb,ERI_bbbb,XpY,rho)
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!------------------------------------------------!
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! Compute self-energy and renormalization factor !
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!------------------------------------------------!
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if(regularize) then
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do is=1,nspin
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call GW_regularization(nBas,nC(is),nO(is),nV(is),nR(is),nSt,eGW(:,is),Om,rho(:,:,:,is))
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end do
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end if
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call USRG_self_energy(eta,nBas,nC,nO,nV,nR,nSt,eGW,Om,rho,EcGM,SigC,Z)
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! Make correlation self-energy Hermitian and transform it back to AO basis
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do is=1,nspin
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call MOtoAO(nBas,S,c(:,:,is),SigC(:,:,is),SigCp(:,:,is))
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end do
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! Solve the quasi-particle equation
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do is=1,nspin
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F(:,:,is) = Hc(:,:) + J(:,:,is) + J(:,:,mod(is,2)+1) + K(:,:,is) + SigCp(:,:,is)
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end do
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! Check convergence
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do is=1,nspin
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err(:,:,is) = matmul(F(:,:,is),matmul(P(:,:,is),S(:,:))) - matmul(matmul(S(:,:),P(:,:,is)),F(:,:,is))
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end do
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if(nSCF > 1) Conv = maxval(abs(err))
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! DIIS extrapolation
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if(max_diis > 1) then
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n_diis = min(n_diis+1,max_diis)
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do is=1,nspin
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if(nO(is) > 1) call DIIS_extrapolation(rcond(is),nBasSq,nBasSq,n_diis,err_diis(:,1:n_diis,is), &
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F_diis(:,1:n_diis,is),err(:,:,is),F(:,:,is))
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end do
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end if
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! Transform Fock matrix in orthogonal basis
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do is=1,nspin
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Fp(:,:,is) = matmul(transpose(X(:,:)),matmul(F(:,:,is),X(:,:)))
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end do
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! Diagonalize Fock matrix to get eigenvectors and eigenvalues
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cp(:,:,:) = Fp(:,:,:)
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do is=1,nspin
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call diagonalize_matrix(nBas,cp(:,:,is),eGW(:,is))
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end do
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! Back-transform eigenvectors in non-orthogonal basis
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do is=1,nspin
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c(:,:,is) = matmul(X(:,:),cp(:,:,is))
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end do
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! Back-transform self-energy
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do is=1,nspin
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call AOtoMO(nBas,c(:,:,is),SigCp(:,:,is),SigC(:,:,is))
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end do
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! Compute density matrix
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do is=1,nspin
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P(:,:,is) = matmul(c(:,1:nO(is),is),transpose(c(:,1:nO(is),is)))
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end do
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!------------------------------------------------------------------------
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! Compute total energy
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!------------------------------------------------------------------------
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! Kinetic energy
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do is=1,nspin
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ET(is) = trace_matrix(nBas,matmul(P(:,:,is),T(:,:)))
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end do
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! Potential energy
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do is=1,nspin
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EV(is) = trace_matrix(nBas,matmul(P(:,:,is),V(:,:)))
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end do
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! Hartree energy
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EJ(1) = 0.5d0*trace_matrix(nBas,matmul(P(:,:,1),J(:,:,1)))
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EJ(2) = 0.5d0*trace_matrix(nBas,matmul(P(:,:,1),J(:,:,2))) &
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+ 0.5d0*trace_matrix(nBas,matmul(P(:,:,2),J(:,:,1)))
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EJ(3) = 0.5d0*trace_matrix(nBas,matmul(P(:,:,2),J(:,:,2)))
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! Exchange energy
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do is=1,nspin
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EK(is) = 0.5d0*trace_matrix(nBas,matmul(P(:,:,is),K(:,:,is)))
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end do
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! Total energy
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EqsGW = sum(ET(:)) + sum(EV(:)) + sum(EJ(:)) + sum(EK(:))
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!------------------------------------------------------------------------
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! Print results
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!------------------------------------------------------------------------
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call dipole_moment(nBas,P(:,:,1)+P(:,:,2),nNuc,ZNuc,rNuc,dipole_int_AO,dipole)
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call print_qsUGW(nBas,nO,nSCF,Conv,thresh,eHF,eGW,c,S,ENuc,ET,EV,EJ,EK,EcGM,EcRPA(ispin),EqsGW,SigCp,Z,dipole)
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end do
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!------------------------------------------------------------------------
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! End main loop
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!------------------------------------------------------------------------
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! Did it actually converge?
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if(nSCF == maxSCF) then
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write(*,*)
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write(*,*)'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
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write(*,*)' Convergence failed '
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write(*,*)'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
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write(*,*)
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stop
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end if
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! Deallocate memory
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deallocate(cp,P,F,Fp,J,K,SigC,SigCp,Z,Om,XpY,XmY,rho,err,err_diis,F_diis)
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! Perform BSE calculation
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if(BSE) then
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call UGW_phBSE(TDA_W,TDA,dBSE,dTDA,spin_conserved,spin_flip,eta,nBas,nC,nO,nV,nR,nS, &
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S,ERI_aaaa,ERI_aabb,ERI_bbbb,dipole_int_aa,dipole_int_bb,c,eGW,eGW,EcBSE)
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if(exchange_kernel) then
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EcBSE(1) = 0.5d0*EcBSE(1)
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EcBSE(2) = 0.5d0*EcBSE(2)
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else
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EcBSE(2) = 0.0d0
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end if
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write(*,*)
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write(*,*)'-------------------------------------------------------------------------------'
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write(*,'(2X,A50,F20.10,A3)') 'Tr@BSE@qsGW@UHF correlation energy (spin-conserved) = ',EcBSE(1),' au'
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write(*,'(2X,A50,F20.10,A3)') 'Tr@BSE@qsGW@UHF correlation energy (spin-flip) = ',EcBSE(2),' au'
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write(*,'(2X,A50,F20.10,A3)') 'Tr@BSE@qsGW@UHF correlation energy = ',sum(EcBSE),' au'
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write(*,'(2X,A50,F20.10,A3)') 'Tr@BSE@qsGW@UHF total energy = ',ENuc + EqsGW + sum(EcBSE),' au'
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write(*,*)'-------------------------------------------------------------------------------'
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write(*,*)
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! Compute the BSE correlation energy via the adiabatic connection
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if(doACFDT) then
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write(*,*) '--------------------------------------------------------------'
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write(*,*) ' Adiabatic connection version of BSE@qsUGW correlation energy '
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write(*,*) '--------------------------------------------------------------'
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write(*,*)
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if(doXBS) then
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write(*,*) '*** scaled screening version (XBS) ***'
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write(*,*)
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end if
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call UGW_phACFDT(exchange_kernel,doXBS,.true.,TDA_W,TDA,BSE,spin_conserved,spin_flip, &
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eta,nBas,nC,nO,nV,nR,nS,ERI_aaaa,ERI_aabb,ERI_bbbb,eGW,eGW,EcRPA)
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write(*,*)
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write(*,*)'-------------------------------------------------------------------------------'
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write(*,'(2X,A50,F20.10,A3)') 'AC@BSE@qsGW@UHF correlation energy (spin-conserved) = ',EcRPA(1),' au'
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write(*,'(2X,A50,F20.10,A3)') 'AC@BSE@qsGW@UHF correlation energy (spin-flip) = ',EcRPA(2),' au'
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write(*,'(2X,A50,F20.10,A3)') 'AC@BSE@qsGW@UHF correlation energy = ',sum(EcRPA),' au'
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write(*,'(2X,A50,F20.10,A3)') 'AC@BSE@qsGW@UHF total energy = ',ENuc + EqsGW + sum(EcRPA),' au'
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write(*,*)'-------------------------------------------------------------------------------'
|
||||
write(*,*)
|
||||
|
||||
end if
|
||||
|
||||
end if
|
||||
|
||||
! Testing zone
|
||||
|
||||
if(dotest) then
|
||||
|
||||
call dump_test_value('U','qsGW correlation energy',EcRPA)
|
||||
call dump_test_value('U','qsGW HOMOa energy',eGW(nO(1),1))
|
||||
call dump_test_value('U','qsGW LUMOa energy',eGW(nO(1)+1,1))
|
||||
call dump_test_value('U','qsGW HOMOa energy',eGW(nO(2),2))
|
||||
call dump_test_value('U','qsGW LUMOa energy',eGW(nO(2)+1,2))
|
||||
|
||||
end if
|
||||
|
||||
end subroutine
|
||||
@ -114,9 +114,9 @@ subroutine UGW(dotest,doG0W0,doevGW,doqsGW,doufG0W0,doufGW,doSRGqsGW,maxSCF,thre
|
||||
if(doqsGW) then
|
||||
|
||||
call wall_time(start_GW)
|
||||
call qsUGW(dotest,maxSCF,thresh,max_diis,doACFDT,exchange_kernel,doXBS,dophBSE,TDA_W,TDA,dBSE,dTDA,spin_conserved,spin_flip, &
|
||||
eta,regularize,nNuc,ZNuc,rNuc,ENuc,nBas,nC,nO,nV,nR,nS,EUHF,S,X,T,V,Hc,ERI_AO,ERI_aaaa,ERI_aabb,ERI_bbbb, &
|
||||
dipole_int_AO,dipole_int_aa,dipole_int_bb,PHF,cHF,eHF)
|
||||
call qsUGW(dotest,maxSCF,thresh,max_diis,doACFDT,exchange_kernel,doXBS,dophBSE,TDA_W,TDA,dBSE,dTDA, &
|
||||
spin_conserved,spin_flip,eta,regularize,nNuc,ZNuc,rNuc,ENuc,nBas,nC,nO,nV,nR,nS,EUHF, &
|
||||
S,X,T,V,Hc,ERI_AO,ERI_aaaa,ERI_aabb,ERI_bbbb,dipole_int_AO,dipole_int_aa,dipole_int_bb,PHF,cHF,eHF)
|
||||
call wall_time(end_GW)
|
||||
|
||||
t_GW = end_GW - start_GW
|
||||
@ -132,7 +132,9 @@ subroutine UGW(dotest,doG0W0,doevGW,doqsGW,doufG0W0,doufGW,doSRGqsGW,maxSCF,thre
|
||||
if(doSRGqsGW) then
|
||||
|
||||
call wall_time(start_GW)
|
||||
print*,'Unrestricted version of SRG-qsGW not yet implemented! Sorry.'
|
||||
call SRG_qsUGW(dotest,maxSCF,thresh,max_diis,doACFDT,exchange_kernel,doXBS,dophBSE,TDA_W,TDA,dBSE,dTDA, &
|
||||
spin_conserved,spin_flip,eta,regularize,nNuc,ZNuc,rNuc,ENuc,nBas,nC,nO,nV,nR,nS,EUHF, &
|
||||
S,X,T,V,Hc,ERI_AO,ERI_aaaa,ERI_aabb,ERI_bbbb,dipole_int_AO,dipole_int_aa,dipole_int_bb,PHF,cHF,eHF)
|
||||
call wall_time(end_GW)
|
||||
|
||||
t_GW = end_GW - start_GW
|
||||
|
||||
150
src/GW/USRG_self_energy.f90
Normal file
150
src/GW/USRG_self_energy.f90
Normal file
@ -0,0 +1,150 @@
|
||||
subroutine USRG_self_energy(eta,nBas,nC,nO,nV,nR,nS,e,Om,rho,EcGM,SigC,Z)
|
||||
|
||||
! Compute correlation part of the self-energy
|
||||
|
||||
implicit none
|
||||
include 'parameters.h'
|
||||
|
||||
! Input variables
|
||||
|
||||
double precision,intent(in) :: eta
|
||||
integer,intent(in) :: nBas
|
||||
integer,intent(in) :: nC(nspin)
|
||||
integer,intent(in) :: nO(nspin)
|
||||
integer,intent(in) :: nV(nspin)
|
||||
integer,intent(in) :: nR(nspin)
|
||||
integer,intent(in) :: nS
|
||||
double precision,intent(in) :: e(nBas,nspin)
|
||||
double precision,intent(in) :: Om(nS)
|
||||
double precision,intent(in) :: rho(nBas,nBas,nS,nspin)
|
||||
|
||||
! Local variables
|
||||
|
||||
integer :: ispin
|
||||
integer :: i,j,a,b
|
||||
integer :: p,q,r
|
||||
integer :: m
|
||||
double precision :: Dpim,Dqim,Dpam,Dqam,Diam
|
||||
double precision :: t1,t2
|
||||
|
||||
! Output variables
|
||||
|
||||
double precision,intent(out) :: EcGM
|
||||
double precision,intent(out) :: SigC(nBas,nBas,nspin)
|
||||
double precision,intent(out) :: Z(nBas,nspin)
|
||||
|
||||
! Initialize
|
||||
|
||||
SigC(:,:,:) = 0d0
|
||||
|
||||
!--------------------!
|
||||
! SRG-GW self-energy !
|
||||
!--------------------!
|
||||
|
||||
! Occupied part of the correlation self-energy
|
||||
|
||||
call wall_time(t1)
|
||||
|
||||
!$OMP PARALLEL &
|
||||
!$OMP SHARED(SigC,rho,eta,nS,nC,nO,nBas,nR,e,Om) &
|
||||
!$OMP PRIVATE(ispin,m,i,q,p,Dpim,Dqim) &
|
||||
!$OMP DEFAULT(NONE)
|
||||
!$OMP DO
|
||||
do ispin=1,nspin
|
||||
do q=nC(ispin)+1,nBas-nR(ispin)
|
||||
do p=nC(ispin)+1,nBas-nR(ispin)
|
||||
do m=1,nS
|
||||
do i=nC(ispin)+1,nO(ispin)
|
||||
Dpim = e(p,ispin) - e(i,ispin) + Om(m)
|
||||
Dqim = e(q,ispin) - e(i,ispin) + Om(m)
|
||||
SigC(p,q,ispin) = SigC(p,q,ispin) &
|
||||
+ rho(p,i,m,ispin)*rho(q,i,m,ispin)*(1d0-dexp(-eta*Dpim*Dpim)*dexp(-eta*Dqim*Dqim)) &
|
||||
*(Dpim + Dqim)/(Dpim*Dpim + Dqim*Dqim)
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
!$OMP END DO
|
||||
!$OMP END PARALLEL
|
||||
|
||||
call wall_time(t2)
|
||||
print *, "first loop", (t2-t1)
|
||||
|
||||
! Virtual part of the correlation self-energy
|
||||
|
||||
call wall_time(t1)
|
||||
!$OMP PARALLEL &
|
||||
!$OMP SHARED(SigC,rho,eta,nS,nC,nO,nR,nBas,e,Om) &
|
||||
!$OMP PRIVATE(ispin,m,a,q,p,Dpam,Dqam) &
|
||||
!$OMP DEFAULT(NONE)
|
||||
!$OMP DO
|
||||
do ispin=1,nspin
|
||||
do q=nC(ispin)+1,nBas-nR(ispin)
|
||||
do p=nC(ispin)+1,nBas-nR(ispin)
|
||||
do m=1,nS
|
||||
do a=nO(ispin)+1,nBas-nR(ispin)
|
||||
Dpam = e(p,ispin) - e(a,ispin) - Om(m)
|
||||
Dqam = e(q,ispin) - e(a,ispin) - Om(m)
|
||||
SigC(p,q,ispin) = SigC(p,q,ispin) &
|
||||
+ rho(p,a,m,ispin)*rho(q,a,m,ispin)*(1d0-exp(-eta*Dpam*Dpam)*exp(-eta*Dqam*Dqam)) &
|
||||
*(Dpam + Dqam)/(Dpam*Dpam + Dqam*Dqam)
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
!$OMP END DO
|
||||
!$OMP END PARALLEL
|
||||
|
||||
call wall_time(t2)
|
||||
print *, "second loop", (t2-t1)
|
||||
|
||||
|
||||
! Initialize
|
||||
|
||||
Z(:,:) = 0d0
|
||||
|
||||
do ispin=1,nspin
|
||||
do p=nC(ispin)+1,nBas-nR(ispin)
|
||||
do i=nC(ispin)+1,nO(ispin)
|
||||
do m=1,nS
|
||||
Dpim = e(p,ispin) - e(i,ispin) + Om(m)
|
||||
Z(p,ispin) = Z(p,ispin) - rho(p,i,m,ispin)**2*(1d0-dexp(-2d0*eta*Dpim*Dpim))/Dpim**2
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
|
||||
! Virtual part of the correlation self-energy
|
||||
|
||||
do ispin=1,nspin
|
||||
do p=nC(ispin)+1,nBas-nR(ispin)
|
||||
do a=nO(ispin)+1,nBas-nR(ispin)
|
||||
do m=1,nS
|
||||
Dpam = e(p,ispin) - e(a,ispin) - Om(m)
|
||||
Z(p,ispin) = Z(p,ispin) - rho(p,a,m,ispin)**2*(1d0-dexp(-2d0*eta*Dpam*Dpam))/Dpam**2
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
|
||||
! Compute renormalization factor from derivative of SigC
|
||||
|
||||
Z(:,:) = 1d0/(1d0 - Z(:,:))
|
||||
|
||||
! Galitskii-Migdal correlation energy
|
||||
|
||||
EcGM = 0d0
|
||||
do ispin=1,nspin
|
||||
do i=nC(ispin)+1,nO(ispin)
|
||||
do a=nO(ispin)+1,nBas-nR(ispin)
|
||||
do m=1,nS
|
||||
Diam = e(a,ispin) - e(i,ispin) + Om(m)
|
||||
EcGM = EcGM - rho(a,i,m,ispin)*rho(a,i,m,ispin)*(1d0-exp(-2d0*eta*Diam*Diam))/Diam
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
end do
|
||||
|
||||
end subroutine
|
||||
@ -33,9 +33,9 @@ subroutine print_qsUGW(nBas,nO,nSCF,Conv,thresh,eHF,eGW,c,Ov,ENuc,ET,EV,EJ,Ex,Ec
|
||||
logical :: dump_orb = .false.
|
||||
integer :: p
|
||||
integer :: ispin,ixyz
|
||||
double precision :: HOMO(nspin)
|
||||
double precision :: LUMO(nspin)
|
||||
double precision :: Gap(nspin)
|
||||
double precision :: eHOMO(nspin)
|
||||
double precision :: eLUMO(nspin)
|
||||
double precision :: Gap
|
||||
double precision :: Sz
|
||||
double precision :: Sx2,Sy2,Sz2
|
||||
double precision,external :: trace_matrix
|
||||
@ -43,16 +43,10 @@ subroutine print_qsUGW(nBas,nO,nSCF,Conv,thresh,eHF,eGW,c,Ov,ENuc,ET,EV,EJ,Ex,Ec
|
||||
! HOMO and LUMO
|
||||
|
||||
do ispin=1,nspin
|
||||
if(nO(ispin) > 0) then
|
||||
HOMO(ispin) = eGW(nO(ispin),ispin)
|
||||
LUMO(ispin) = eGW(nO(ispin)+1,ispin)
|
||||
Gap(ispin) = LUMO(ispin) - HOMO(ispin)
|
||||
else
|
||||
HOMO(ispin) = 0d0
|
||||
LUMO(ispin) = eGW(1,ispin)
|
||||
Gap(ispin) = 0d0
|
||||
end if
|
||||
eHOMO(ispin) = maxval(eGW(1:nO(ispin),ispin))
|
||||
eLUMO(ispin) = minval(eGW(nO(ispin)+1:nBas,ispin))
|
||||
end do
|
||||
Gap = minval(eLUMO) -maxval(eHOMO)
|
||||
|
||||
Sz = 0.5d0*dble(nO(1) - nO(2))
|
||||
Sx2 = 0.25d0*dble(nO(1) - nO(2)) + 0.5d0*nO(2) - 0.5d0*sum(matmul(transpose(c(:,1:nO(1),1)),matmul(Ov,c(:,1:nO(2),2)))**2)
|
||||
@ -91,9 +85,9 @@ subroutine print_qsUGW(nBas,nO,nSCF,Conv,thresh,eHF,eGW,c,Ov,ENuc,ET,EV,EJ,Ex,Ec
|
||||
write(*,'(2X,A14,F15.5)')'Convergence = ',Conv
|
||||
write(*,*)'----------------------------------------------------------------'// &
|
||||
'----------------------------------------------------------------'
|
||||
write(*,'(2X,A60,F15.6,A3)') 'qsGW@UHF HOMO energy = ',maxval(HOMO)*HaToeV,' eV'
|
||||
write(*,'(2X,A60,F15.6,A3)') 'qsGW@UHF LUMO energy = ',minval(LUMO)*HaToeV,' eV'
|
||||
write(*,'(2X,A60,F15.6,A3)') 'qsGW@UHF HOMO-LUMO gap = ',(minval(LUMO)-maxval(HOMO))*HaToeV,' eV'
|
||||
write(*,'(2X,A60,F15.6,A3)') 'qsGW@UHF HOMO energy = ',maxval(eHOMO)*HaToeV,' eV'
|
||||
write(*,'(2X,A60,F15.6,A3)') 'qsGW@UHF LUMO energy = ',minval(eLUMO)*HaToeV,' eV'
|
||||
write(*,'(2X,A60,F15.6,A3)') 'qsGW@UHF HOMO-LUMO gap = ',(minval(eLUMO)-maxval(eHOMO))*HaToeV,' eV'
|
||||
write(*,*)'----------------------------------------------------------------'// &
|
||||
'----------------------------------------------------------------'
|
||||
write(*,'(2X,A60,F15.6,A3)') ' qsGW@UHF total energy = ',ENuc + EqsGW,' au'
|
||||
|
||||
Loading…
Reference in New Issue
Block a user