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individual energies for lda correlation

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This commit is contained in:
Pierre-Francois Loos 2020-03-16 23:28:56 +01:00
parent b9d0e40407
commit 0667c8c5fd
10 changed files with 40 additions and 51 deletions
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2
input/dft
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@ -3,7 +3,7 @@
# exchange rung: Hartree = 0, LDA = 1 (RS51,S51), GGA = 2(G96,B88), hybrid = 4, Hartree-Fock = 666
1 RS51
# correlation rung: Hartree = 0, LDA = 1 (W38,VWN5,C16,LF19), GGA = 2(LYP), hybrid = 4(B3LYP), Hartree-Fock = 666
0 HF
1 RVWN5
# quadrature grid SG-n
1
# Number of states in ensemble (nEns)

20
src/eDFT/exchange_individual_energy.f90
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@ -1,6 +1,7 @@
subroutine exchange_individual_energy(rung,DFA,nEns,wEns,nGrid,weight,rhow,drhow,rho,drho,Ex)
subroutine exchange_individual_energy(rung,DFA,nEns,wEns,nGrid,weight,nBas, &
ERI,P,FxHF,rhow,drhow,rho,drho,Ex)
! Compute the exchange energy of individual states
! Compute the exchange individual energy
implicit none
include 'parameters.h'
@ -13,6 +14,10 @@ subroutine exchange_individual_energy(rung,DFA,nEns,wEns,nGrid,weight,rhow,drhow
double precision,intent(in) :: wEns(nEns)
integer,intent(in) :: nGrid
double precision,intent(in) :: weight(nGrid)
integer,intent(in) :: nBas
double precision,intent(in) :: ERI(nBas,nBas,nBas,nBas)
double precision,intent(in) :: P(nBas,nBas)
double precision,intent(in) :: FxHF(nBas,nBas)
double precision,intent(in) :: rhow(nGrid)
double precision,intent(in) :: drhow(ncart,nGrid)
double precision,intent(in) :: rho(nGrid)
@ -21,7 +26,6 @@ subroutine exchange_individual_energy(rung,DFA,nEns,wEns,nGrid,weight,rhow,drhow
! Local variables
double precision :: ExLDA
double precision :: ExGGA
double precision :: ExHF
! Output variables
@ -40,7 +44,9 @@ subroutine exchange_individual_energy(rung,DFA,nEns,wEns,nGrid,weight,rhow,drhow
case(1)
call lda_exchange_individual_energy(DFA,nEns,wEns(:),nGrid,weight(:),rhow(:),rho(:),Ex)
call lda_exchange_individual_energy(DFA,nEns,wEns,nGrid,weight,rhow,rho,ExLDA)
Ex = ExLDA
! GGA functionals
@ -53,14 +59,16 @@ subroutine exchange_individual_energy(rung,DFA,nEns,wEns,nGrid,weight,rhow,drhow
case(4)
call print_warning('!!! Individual energies NYI for hybrids !!!')
call print_warning('!!! Individual energies NYI for Hybrids !!!')
stop
! Hartree-Fock calculation
case(666)
! call fock_exchange_individual_energy(nEns,wEns(:),nBas,P,FxHF,ExHF)
call fock_exchange_potential(nBas,P,ERI,FxHF)
call fock_exchange_energy(nBas,P,FxHF,ExHF)
Ex = ExHF
end select

6
src/eDFT/lda_correlation_energy.f90
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@ -44,12 +44,6 @@ subroutine lda_correlation_energy(DFA,nEns,wEns,nGrid,weight,rho,Ec)
call C16_lda_correlation_energy(nGrid,weight(:),rho(:,:),Ec(:))
! Restricted version of the Marut-Fromager-Loos weight-dependent correlation functional
case ('RMFL20')
call RMFL20_lda_correlation_energy(nEns,wEns(:),nGrid,weight(:),rho(:,:),Ec(:))
case default
call print_warning('!!! LDA correlation functional not available !!!')

6
src/eDFT/lda_correlation_potential.f90
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@ -48,12 +48,6 @@ include 'parameters.h'
call C16_lda_correlation_potential(nGrid,weight(:),nBas,AO(:,:),rho(:,:),Fc(:,:,:))
! Restricted version of the Marut-Fromager-Loos weight-dependent correlation functional
case ('RMFL20')
call RMFL20_lda_correlation_potential(nEns,wEns(:),nGrid,weight(:),nBas,AO(:,:),rho(:,:),Fc(:,:,:))
case default
call print_warning('!!! LDA correlation functional not available !!!')

4
src/eDFT/lda_exchange_derivative_discontinuity.f90
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@ -29,6 +29,10 @@ subroutine lda_exchange_derivative_discontinuity(DFA,nEns,wEns,nGrid,weight,rhow
ExDD(:) = 0d0
case ('RS51')
ExDD(:) = 0d0
case ('RMFL20')
! call MFL20_lda_exchange_derivative_discontinuity(nEns,wEns,nGrid,weight(:),rhow(:),ExDD(:))

8
src/eDFT/lda_exchange_individual_energy.f90
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@ -23,13 +23,13 @@ subroutine lda_exchange_individual_energy(DFA,nEns,wEns,nGrid,weight,rhow,rho,Ex
select case (DFA)
case ('S51')
case ('RS51')
! call S51_lda_exchange_individual_energy(nGrid,weight(:),rhow(:),rho(:),Ex)
call RS51_lda_exchange_individual_energy(nGrid,weight(:),rhow(:),rho(:),Ex)
case ('MFL20')
case ('RMFL20')
! call MFL20_lda_exchange_individual_energy(nEns,wEns,nGrid,weight(:),rhow(:),rho(:),Ex)
! call RMFL20_lda_exchange_individual_energy(nEns,wEns,nGrid,weight(:),rhow(:),rho(:),Ex)
case default

4
src/eDFT/read_options.f90
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@ -39,8 +39,8 @@ subroutine read_options(method,x_rung,x_DFA,c_rung,c_DFA,SGn,nEns,wEns,maxSCF,th
method = 'GOK-RKS'
x_rung = 1
c_rung = 1
x_DFA = 'S51'
c_DFA = 'W38'
x_DFA = 'RS51'
c_DFA = 'RVWN5'
SGn = 0
wEns(:) = 0d0

14
src/eDFT/restricted_correlation_energy.f90
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@ -38,24 +38,20 @@ subroutine restricted_correlation_energy(rung,DFA,nEns,wEns,nGrid,weight,rho,drh
case(1)
call lda_correlation_energy(DFA,nEns,wEns(:),nGrid,weight(:),rho(:),Ec)
call restricted_lda_correlation_energy(DFA,nEns,wEns(:),nGrid,weight(:),rho(:),Ec)
! GGA functionals
case(2)
call gga_correlation_energy(DFA,nEns,wEns(:),nGrid,weight(:),rho(:),drho(:,:),Ec)
call print_warning('!!! restricted correlation energies NYI for GGAs !!!')
stop
! Hybrid functionals
case(4)
aC = 0.81d0
call lda_correlation_energy(DFA,nEns,wEns(:),nGrid,weight(:),rho(:),EcLDA)
call gga_correlation_energy(DFA,nEns,wEns(:),nGrid,weight(:),rho(:),drho(:,:),EcGGA)
Ec = EcLDA + aC*(EcGGA - EcLDA)
call print_warning('!!! restricted correlation energies NYI for Hybrids !!!')
stop
! Hartree-Fock calculation

17
src/eDFT/restricted_correlation_potential.f90
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@ -22,8 +22,6 @@ subroutine restricted_correlation_potential(rung,DFA,nEns,wEns,nGrid,weight,nBas
! Local variables
double precision,allocatable :: FcLDA(:,:)
double precision,allocatable :: FcGGA(:,:)
double precision :: aC
! Output variables
@ -43,26 +41,21 @@ subroutine restricted_correlation_potential(rung,DFA,nEns,wEns,nGrid,weight,nBas
case(1)
call lda_correlation_potential(DFA,nEns,wEns(:),nGrid,weight(:),nBas,AO(:,:),rho(:),Fc(:,:))
call restricted_lda_correlation_potential(DFA,nEns,wEns(:),nGrid,weight(:),nBas,AO(:,:),rho(:),Fc(:,:))
! GGA functionals
case(2)
call gga_correlation_potential(DFA,nEns,wEns(:),nGrid,weight(:),nBas,AO(:,:),dAO(:,:,:),rho(:),drho(:,:),Fc(:,:))
call print_warning('!!! restricted correlation potentials NYI for GGAs !!!')
stop
! Hybrid functionals
case(4)
allocate(FcLDA(nBas,nBas),FcGGA(nBas,nBas))
aC = 0.81d0
call lda_correlation_potential(DFA,nEns,wEns(:),nGrid,weight(:),nBas,AO(:,:),rho(:),FcLDA(:,:))
call gga_correlation_potential(DFA,nEns,wEns(:),nGrid,weight(:),nBas,AO(:,:),dAO(:,:,:),rho(:),drho(:,:),FcGGA(:,:))
Fc(:,:) = FcLDA(:,:) + aC*(FcGGA(:,:) - FcLDA(:,:))
call print_warning('!!! restricted correlation potentials NYI for Hybrids !!!')
stop
! Hartree-Fock calculation

8
src/eDFT/restricted_individual_energy.f90
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@ -75,7 +75,7 @@ subroutine restricted_individual_energy(x_rung,x_DFA,c_rung,c_DFA,nEns,wEns,nGri
!------------------------------------------------------------------------
do iEns=1,nEns
call hartree_coulomb(nBas,P(:,:,iEns),ERI,J(:,:))
call hartree_coulomb(nBas,P(:,:,iEns),ERI(:,:,:,:),J(:,:))
EJ(iEns) = 0.5d0*trace_matrix(nBas,matmul(P(:,:,iEns),J(:,:)))
end do
@ -85,8 +85,8 @@ subroutine restricted_individual_energy(x_rung,x_DFA,c_rung,c_DFA,nEns,wEns,nGri
do iEns=1,nEns
call exchange_energy_individual_energy(x_rung,x_DFA,nEns,wEns(:),nGrid,weight(:),nBas,P(:,:,iEns),FxHF(:,:), &
rho(:,iEns),drho(:,:,iEns),Ex(iEns))
call exchange_individual_energy(x_rung,x_DFA,nEns,wEns(:),nGrid,weight(:),nBas,ERI(:,:,:,:), &
P(:,:,iEns),FxHF(:,:),rhow(:),drhow(:,:),rho(:,iEns),drho(:,:,iEns),Ex(iEns))
end do
@ -133,7 +133,7 @@ subroutine restricted_individual_energy(x_rung,x_DFA,c_rung,c_DFA,nEns,wEns,nGri
! Dump results
!------------------------------------------------------------------------
call print_restricted_individual_energy(nEns,ET(:),EV(:),EJ(:),Ex(:),Ec(:),Exc(:),ExLZ,EcLZ,ExcLZ, &
call print_restricted_individual_energy(nEns,ET(:),EV(:),EJ(:),Ex(:),Ec(:),Exc(:), &
ExDD(:),EcDD(:),ExcDD(:),E(:),Om(:))
end subroutine restricted_individual_energy