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mirror of https://github.com/pfloos/quack synced 2024-12-22 12:23:50 +01:00
This commit is contained in:
Pierre-Francois Loos 2022-09-29 16:01:02 +02:00
parent 96621bd038
commit f9497363b2
3 changed files with 292 additions and 2 deletions

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@ -5,7 +5,7 @@
# CCD pCCD DCD CCSD CCSD(T)
F F F F F
# drCCD rCCD crCCD lCCD
F T F F
F F F F
# CIS* CIS(D) CID CISD FCI
F F F F F
# RPA* RPAx* crRPA ppRPA
@ -13,7 +13,7 @@
# G0F2* evGF2* qsGF2* G0F3 evGF3
F F F F F
# G0W0* evGW* qsGW* ufG0W0 ufGW
F F F F F
T F F F T
# G0T0 evGT qsGT
F F F
# MCMP2

289
src/CC/CCGW.f90 Normal file
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@ -0,0 +1,289 @@
subroutine CCGW(maxSCF,thresh,nBas,nC,nO,nV,nR,ERI,ENuc,ERHF,e)
! CC-based GW module
implicit none
include 'parameters.h'
! Input variables
integer,intent(in) :: maxSCF
double precision,intent(in) :: thresh
integer,intent(in) :: nBas
integer,intent(in) :: nC
integer,intent(in) :: nO
integer,intent(in) :: nV
integer,intent(in) :: nR
double precision,intent(in) :: ENuc
double precision,intent(in) :: ERHF
double precision,intent(in) :: e(nBas)
double precision,intent(in) :: ERI(nBas,nBas,nBas,nBas)
! Local variables
integer :: p,q
integer :: i,j,k,l
integer :: a,b,c,d
integer :: nSCF
double precision :: Conv
double precision,allocatable :: eO(:)
double precision,allocatable :: eV(:)
double precision,allocatable :: delta_2h1p(:,:,:,:)
double precision,allocatable :: delta_2p1h(:,:,:,:)
double precision,allocatable :: OVVO(:,:,:,:)
double precision,allocatable :: VOOV(:,:,:,:)
double precision,allocatable :: NVOO(:,:,:,:)
double precision,allocatable :: NOVV(:,:,:,:)
double precision,allocatable :: r_2h1p(:,:,:,:)
double precision,allocatable :: r_2p1h(:,:,:,:)
double precision,allocatable :: t_2h1p(:,:,:,:)
double precision,allocatable :: t_2p1h(:,:,:,:)
double precision,allocatable :: eGW(:)
double precision,allocatable :: Z(:)
! Hello world
write(*,*)
write(*,*)'**************************************'
write(*,*)'| ring CCD calculation |'
write(*,*)'**************************************'
write(*,*)
! Create integral batches
allocate(OVVO(nO,nV,nV,nO),VOOV(nV,nO,nO,nV),NVOO(nBas,nV,nO,nO),NOVV(nBas,nO,nV,nV))
OVVO(:,:,:,:) = ERI( 1:nO ,nO+1:nBas,nO+1:nBas, 1:nO )
VOOV(:,:,:,:) = ERI(nO+1:nBas , 1:nO , 1:nO ,nO+1:nBas)
NVOO(:,:,:,:) = ERI( 1:nBas ,nO+1:nBas, 1:nO , 1:nO )
NOVV(:,:,:,:) = ERI( 1:nBas , 1:nO ,nO+1:nBas,nO+1:nBas)
! Form energy denominator and guess amplitudes
allocate(eO(nO),eV(nV))
allocate(delta_2h1p(nO,nO,nV,nBas),delta_2p1h(nO,nV,nV,nBas))
allocate(t_2h1p(nO,nO,nV,nBas),t_2p1h(nO,nV,nV,nBas))
eO(:) = e(1:nO)
eV(:) = e(nO+1:nBas)
do i=nC+1,nO
do j=nC+1,nO
do a=1,nV-nR
do p=nC+1,nBas-nR
delta_2h1p(i,j,a,p) = eO(i) + eO(j) - eV(a) - e(p)
t_2h1p(i,j,a,p) = - sqrt(2d0)*NVOO(p,a,i,j)/delta_2h1p(i,j,a,p)
end do
end do
end do
end do
do a=1,nV-nR
do b=1,nV-nR
do i=nC+1,nO
do p=nC+1,nBas-nR
delta_2p1h(i,a,b,p) = eV(a) + eV(b) - eO(i) - e(p)
t_2p1h(i,a,b,p) = - sqrt(2d0)*NOVV(p,i,b,a)/delta_2p1h(i,a,b,p)
end do
end do
end do
end do
! Initialization
allocate(r_2h1p(nO,nO,nV,nBas),r_2p1h(nO,nV,nV,nBas))
allocate(eGW(nBas),Z(nBas))
Conv = 1d0
nSCF = 0
!------------------------------------------------------------------------
! Main SCF loop
!------------------------------------------------------------------------
write(*,*)
write(*,*)'----------------------------------------------------'
write(*,*)'| CCGW calculation |'
write(*,*)'----------------------------------------------------'
write(*,'(1X,A1,1X,A3,1X,A1,1X,A16,1X,A1,1X,A10,1X,A1,1X,A10,1X,A1,1X)') &
'|','#','|','HOMO','|','LUMO','|','Conv','|'
write(*,*)'----------------------------------------------------'
do while(Conv > thresh .and. nSCF < maxSCF)
! Increment
nSCF = nSCF + 1
! Compute residual for 2h1p sector
do i=nC+1,nO
do j=nC+1,nO
do a=1,nV-nR
do p=nC+1,nBas-nR
r_2h1p(i,j,a,p) = sqrt(2d0)*NVOO(p,a,i,j) + delta_2h1p(i,j,a,p)*t_2h1p(i,j,a,p)
do k=nC+1,nO
do c=1,nV-nR
r_2h1p(i,j,a,p) = r_2h1p(i,j,a,p) - 2d0*OVVO(j,c,a,k)*t_2h1p(i,k,c,p)
do l=nC+1,nO
do q=nC+1,nBas-nR
r_2h1p(i,j,a,p) = r_2h1p(i,j,a,p) - sqrt(2d0)*t_2h1p(i,j,a,q)*NVOO(q,c,k,l)*t_2h1p(k,l,c,p)
end do
end do
do d=1,nV-nR
do q=nC+1,nBas-nR
r_2h1p(i,j,a,p) = r_2h1p(i,j,a,p) - sqrt(2d0)*t_2h1p(i,j,a,q)*NOVV(q,k,d,c)*t_2p1h(k,c,d,p)
end do
end do
end do
end do
end do
end do
end do
end do
! Compute residual for 2p1h sector
do i=nC+1,nO
do a=1,nV-nR
do b=1,nV-nR
do p=nC+1,nBas-nR
r_2p1h(i,a,b,p) = sqrt(2d0)*NOVV(p,i,b,a) + delta_2p1h(i,a,b,p)*t_2p1h(i,a,b,p)
do k=nC+1,nO
do c=1,nV-nR
r_2p1h(p,i,a,b) = r_2p1h(p,i,a,b) + 2d0*VOOV(a,k,i,c)*t_2p1h(k,c,b,p)
do l=nC+1,nO
do q=nC+1,nBas-nR
r_2p1h(p,i,a,b) = r_2p1h(p,i,a,b) - sqrt(2d0)*t_2p1h(i,a,b,q)*NVOO(q,c,k,l)*t_2h1p(k,l,c,p)
end do
end do
do d=1,nV-nR
do q=nC+1,nBas-nR
r_2p1h(p,i,a,b) = r_2p1h(p,i,a,b) - sqrt(2d0)*t_2p1h(i,a,b,q)*NOVV(q,k,d,c)*t_2p1h(k,c,d,p)
end do
end do
end do
end do
end do
end do
end do
end do
! Check convergence
Conv = max(maxval(abs(r_2h1p)),maxval(abs(r_2p1h)))
! Update amplitudes
t_2h1p = t_2h1p - r_2h1p/delta_2h1p
t_2p1h = t_2p1h - r_2p1h/delta_2p1h
! Compute correlation energy
eGW(:) = e(:)
do p=nC+1,nBas-nR
do i=nC+1,nO
do j=nC+1,nO
do a=1,nV-nR
eGW(p) = eGW(p) + sqrt(2d0)*t_2h1p(i,j,a,p)*NVOO(p,a,i,j)
end do
end do
end do
do i=nC+1,nO
do a=1,nV-nR
do b=1,nV-nR
eGW(p) = eGW(p) + sqrt(2d0)*t_2p1h(i,a,b,p)*NOVV(p,i,a,b)
end do
end do
end do
end do
! Renormalization factor
Z(:) = 1d0
! Dump results
write(*,'(1X,A1,1X,I3,1X,A1,1X,F16.10,1X,A1,1X,F10.6,1X,A1,1X,F10.6,1X,A1,1X)') &
'|',nSCF,'|',eGW(nO),'|',eGW(nO+1),'|',Conv,'|'
enddo
write(*,*)'----------------------------------------------------'
!------------------------------------------------------------------------
! End of SCF loop
!------------------------------------------------------------------------
! Did it actually converge?
if(nSCF == maxSCF) then
write(*,*)
write(*,*)'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
write(*,*)' Convergence failed '
write(*,*)'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
write(*,*)
stop
endif
write(*,*)'-------------------------------------------------------------------------------'
write(*,*)' CCGW calculation '
write(*,*)'-------------------------------------------------------------------------------'
write(*,'(1X,A1,1X,A3,1X,A1,1X,A15,1X,A1,1X,A15,1X,A1,1X,A15,1X,A1,1X,A15,1X,A1,1X)') &
'|','#','|','e_HF (eV)','|','Sig_c (eV)','|','Z','|','e_QP (eV)','|'
write(*,*)'-------------------------------------------------------------------------------'
do p=1,nBas
write(*,'(1X,A1,1X,I3,1X,A1,1X,F15.6,1X,A1,1X,F15.6,1X,A1,1X,F15.6,1X,A1,1X,F15.6,1X,A1,1X)') &
'|',p,'|',e(p)*HaToeV,'|',(eGW(p)-e(p))*HaToeV,'|',Z(p),'|',eGW(p)*HaToeV,'|'
enddo
write(*,*)'-------------------------------------------------------------------------------'
!------------------------------------------------------------------------
! EOM section
!------------------------------------------------------------------------
end subroutine CCGW

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@ -1161,6 +1161,7 @@ program QuAcK
call cpu_time(start_ufGW)
call ufGW(nBas,nC,nO,nV,nR,nS,ENuc,ERHF,ERI_MO,eHF)
call CCGW(maxSCF_CC,thresh_CC,nBas,nC,nO,nV,nR,ERI_MO,ENuc,ERHF,eHF)
call cpu_time(end_ufGW)
t_ufGW = end_ufGW - start_ufGW