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mirror of https://github.com/pfloos/quack synced 2024-08-28 23:32:04 +02:00

GW_ppBSE_static_kernel_C for ispin = 1

This commit is contained in:
Abdallah Ammar 2024-08-22 15:23:08 +02:00
parent 992e3dff4b
commit bb4729192e
3 changed files with 221 additions and 36 deletions

View File

@ -66,6 +66,11 @@ subroutine GW_ppBSE(TDA_W,TDA,dBSE,dTDA,singlet,triplet,eta,nBas,nC,nO,nV,nR,nS,
double precision,intent(out) :: EcBSE(nspin)
double precision :: t0, t1
double precision :: tt0, tt1
call wall_time(t0)
!---------------------------------
! Compute (singlet) RPA screening
!---------------------------------
@ -76,11 +81,25 @@ subroutine GW_ppBSE(TDA_W,TDA,dBSE,dTDA,singlet,triplet,eta,nBas,nC,nO,nV,nR,nS,
allocate(OmRPA(nS),XpY_RPA(nS,nS),XmY_RPA(nS,nS),rho_RPA(nBas,nBas,nS), &
Aph(nS,nS),Bph(nS,nS))
call phLR_A(isp_W,dRPA_W,nBas,nC,nO,nV,nR,nS,1d0,eW,ERI,Aph)
if(.not.TDA_W) call phLR_B(isp_W,dRPA_W,nBas,nC,nO,nV,nR,nS,1d0,ERI,Bph)
call wall_time(tt0)
call phLR_A(isp_W,dRPA_W,nBas,nC,nO,nV,nR,nS,1d0,eW,ERI,Aph)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR_A =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA_W) call phLR_B(isp_W,dRPA_W,nBas,nC,nO,nV,nR,nS,1d0,ERI,Bph)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR_B =',tt1-tt0,' seconds'
call wall_time(tt0)
call phLR(TDA_W,nS,Aph,Bph,EcRPA,OmRPA,XpY_RPA,XmY_RPA)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR =',tt1-tt0,' seconds'
call wall_time(tt0)
call GW_excitation_density(nBas,nC,nO,nR,nS,ERI,XpY_RPA,rho_RPA)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_excitation_density =',tt1-tt0,' seconds'
deallocate(XpY_RPA,XmY_RPA,Aph,Bph)
@ -108,32 +127,63 @@ subroutine GW_ppBSE(TDA_W,TDA,dBSE,dTDA,singlet,triplet,eta,nBas,nC,nO,nV,nR,nS,
! Compute BSE excitation energies
if(.not.TDA) call GW_ppBSE_static_kernel_B(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,nVV,1d0,ERI,OmRPA,rho_RPA,KB_sta)
call GW_ppBSE_static_kernel_C(ispin,eta,nBas,nC,nO,nV,nR,nS,nVV,1d0,ERI,OmRPA,rho_RPA,KC_sta)
call GW_ppBSE_static_kernel_D(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,1d0,ERI,OmRPA,rho_RPA,KD_sta)
call wall_time(tt0)
call GW_ppBSE_static_kernel_C(ispin,eta,nBas,nC,nO,nV,nR,nS,nVV,1d0,ERI,OmRPA,rho_RPA,KC_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_static_kernel_C =',tt1-tt0,' seconds'
call wall_time(tt0)
call GW_ppBSE_static_kernel_D(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,1d0,ERI,OmRPA,rho_RPA,KD_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_static_kernel_D =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA) call GW_ppBSE_static_kernel_B(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,nVV,1d0,ERI,OmRPA,rho_RPA,KB_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_static_kernel_B =',tt1-tt0,' seconds'
call wall_time(tt0)
call ppLR_C(ispin,nBas,nC,nO,nV,nR,nVV,1d0,eGW,ERI,Cpp)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_C =',tt1-tt0,' seconds'
call wall_time(tt0)
call ppLR_D(ispin,nBas,nC,nO,nV,nR,nOO,1d0,eGW,ERI,Dpp)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_D =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA) call ppLR_B(ispin,nBas,nC,nO,nV,nR,nOO,nVV,1d0,ERI,Bpp)
call ppLR_C(ispin,nBas,nC,nO,nV,nR,nVV,1d0,eGW,ERI,Cpp)
call ppLR_D(ispin,nBas,nC,nO,nV,nR,nOO,1d0,eGW,ERI,Dpp)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_B =',tt1-tt0,' seconds'
Bpp(:,:) = Bpp(:,:) + KB_sta(:,:)
Cpp(:,:) = Cpp(:,:) + KC_sta(:,:)
Dpp(:,:) = Dpp(:,:) + KD_sta(:,:)
call wall_time(tt0)
call ppLR(TDA,nOO,nVV,Bpp,Cpp,Dpp,Om1,X1,Y1,Om2,X2,Y2,EcBSE(ispin))
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR =',tt1-tt0,' seconds'
call wall_time(tt0)
call ppLR_transition_vectors(.true.,nBas,nC,nO,nV,nR,nOO,nVV,dipole_int,Om1,X1,Y1,Om2,X2,Y2)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_transition_vectors =',tt1-tt0,' seconds'
!----------------------------------------------------!
! Compute the dynamical screening at the ppBSE level !
!----------------------------------------------------!
call wall_time(tt0)
if(dBSE) &
call GW_ppBSE_dynamic_perturbation(ispin,dTDA,eta,nBas,nC,nO,nV,nR,nS,nOO,nVV,eW,eGW,ERI,dipole_int,OmRPA,rho_RPA, &
Om1,X1,Y1,Om2,X2,Y2,KB_sta,KC_sta,KD_sta)
write(*,*) "Deallocate not done"
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_dynamic_perturbation =',tt1-tt0,' seconds'
deallocate(Om1,X1,Y1,Om2,X2,Y2,Bpp,Cpp,Dpp,KB_sta,KC_sta,KD_sta)
write(*,*) "Deallocate done"
end if
!-------------------
@ -160,33 +210,66 @@ subroutine GW_ppBSE(TDA_W,TDA,dBSE,dTDA,singlet,triplet,eta,nBas,nC,nO,nV,nR,nS,
! Compute BSE excitation energies
call wall_time(tt0)
call GW_ppBSE_static_kernel_C(ispin,eta,nBas,nC,nO,nV,nR,nS,nVV,1d0,ERI,OmRPA,rho_RPA,KC_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_static_kernel_C =',tt1-tt0,' seconds'
call wall_time(tt0)
call GW_ppBSE_static_kernel_D(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,1d0,ERI,OmRPA,rho_RPA,KD_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_static_kernel_D =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA) call GW_ppBSE_static_kernel_B(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,nVV,1d0,ERI,OmRPA,rho_RPA,KB_sta)
call GW_ppBSE_static_kernel_C(ispin,eta,nBas,nC,nO,nV,nR,nS,nVV,1d0,ERI,OmRPA,rho_RPA,KC_sta)
call GW_ppBSE_static_kernel_D(ispin,eta,nBas,nC,nO,nV,nR,nS,nOO,1d0,ERI,OmRPA,rho_RPA,KD_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_static_kernel_B =',tt1-tt0,' seconds'
call wall_time(tt0)
call ppLR_C(ispin,nBas,nC,nO,nV,nR,nVV,1d0,eGW,ERI,Cpp)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_C =',tt1-tt0,' seconds'
call wall_time(tt0)
call ppLR_D(ispin,nBas,nC,nO,nV,nR,nOO,1d0,eGW,ERI,Dpp)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_D =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA) call ppLR_B(ispin,nBas,nC,nO,nV,nR,nOO,nVV,1d0,ERI,Bpp)
call ppLR_C(ispin,nBas,nC,nO,nV,nR,nVV,1d0,eGW,ERI,Cpp)
call ppLR_D(ispin,nBas,nC,nO,nV,nR,nOO,1d0,eGW,ERI,Dpp)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_B =',tt1-tt0,' seconds'
Bpp(:,:) = Bpp(:,:) + KB_sta(:,:)
Cpp(:,:) = Cpp(:,:) + KC_sta(:,:)
Dpp(:,:) = Dpp(:,:) + KD_sta(:,:)
call wall_time(tt0)
call ppLR(TDA,nOO,nVV,Bpp,Cpp,Dpp,Om1,X1,Y1,Om2,X2,Y2,EcBSE(ispin))
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR =',tt1-tt0,' seconds'
call wall_time(tt0)
call ppLR_transition_vectors(.false.,nBas,nC,nO,nV,nR,nOO,nVV,dipole_int,Om1,X1,Y1,Om2,X2,Y2)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppLR_transition_vectors =',tt1-tt0,' seconds'
!----------------------------------------------------!
! Compute the dynamical screening at the ppBSE level !
!----------------------------------------------------!
call wall_time(tt0)
if(dBSE) &
call GW_ppBSE_dynamic_perturbation(ispin,dTDA,eta,nBas,nC,nO,nV,nR,nS,nOO,nVV,eW,eGW,ERI,dipole_int,OmRPA,rho_RPA, &
Om1,X1,Y1,Om2,X2,Y2,KB_sta,KC_sta,KD_sta)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE_dynamic_perturbation =',tt1-tt0,' seconds'
deallocate(Om1,X1,Y1,Om2,X2,Y2,Bpp,Cpp,Dpp,KB_sta,KC_sta,KD_sta)
end if
call wall_time(t1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_ppBSE =',t1-t0,' seconds'
end subroutine

View File

@ -26,44 +26,94 @@ subroutine GW_ppBSE_static_kernel_C(ispin,eta,nBas,nC,nO,nV,nR,nS,nVV,lambda,ERI
double precision,external :: Kronecker_delta
double precision :: chi
double precision :: eps
double precision :: tmp_ab, lambda4, eta2
integer :: a,b,c,d,ab,cd,m
integer :: a0, aa
double precision, allocatable :: Om_tmp(:)
! Output variables
double precision,intent(out) :: KC(nVV,nVV)
! Initialization
KC(:,:) = 0d0
!---------------!
! Singlet block !
!---------------!
if(ispin == 1) then
ab = 0
do a=nO+1,nBas-nR
do b=a,nBas-nR
ab = ab + 1
a0 = nBas - nR - nO
lambda4 = 4.d0 * lambda
eta2 = eta * eta
allocate(Om_tmp(nS))
!$OMP PARALLEL DEFAULT(NONE) PRIVATE(m) SHARED(nS, eta2, Om, Om_tmp)
!$OMP DO
do m = 1, nS
Om_tmp(m) = Om(m) / (Om(m)*Om(m) + eta2)
enddo
!$OMP END DO
!$OMP END PARALLEL
!$OMP PARALLEL DEFAULT(NONE) &
!$OMP PRIVATE(a, b, aa, ab, c, d, cd, m, tmp_ab) &
!$OMP SHARED(nO, nBas, nR, nS, a0, lambda4, Om_tmp, rho, KC)
!$OMP DO
do a = nO+1, nBas-nR
aa = a0 * (a - nO - 1) - (a - nO - 1) * (a - nO) / 2 - nO
do b = a, nBas-nR
ab = aa + b
tmp_ab = lambda4
if(a .eq. b) then
tmp_ab = 0.7071067811865475d0 * lambda4
endif
cd = 0
do c=nO+1,nBas-nR
do d=c,nBas-nR
do c = nO + 1, nBas-nR
do d = c, nBas-nR
cd = cd + 1
chi = 0d0
do m=1,nS
eps = Om(m)**2 + eta**2
chi = chi - rho(a,c,m)*rho(b,d,m)*Om(m)/eps &
- rho(a,d,m)*rho(b,c,m)*Om(m)/eps
end do
KC(ab,cd) = 0d0
do m = 1, nS
KC(ab,cd) = KC(ab,cd) - rho(a,c,m) * rho(b,d,m) * Om_tmp(m) &
- rho(a,d,m) * rho(b,c,m) * Om_tmp(m)
end do
KC(ab,cd) = 4d0*lambda*chi/sqrt((1d0 + Kronecker_delta(a,b))*(1d0 + Kronecker_delta(c,d)))
KC(ab,cd) = tmp_ab * KC(ab,cd)
if(c .eq. d) then
KC(ab,cd) = 0.7071067811865475d0 * KC(ab,cd)
endif
enddo
enddo
enddo
enddo
!$OMP END DO
!$OMP END PARALLEL
end do
end do
end do
end do
! ab = 0
! do a=nO+1,nBas-nR
! do b=a,nBas-nR
! ab = ab + 1
! cd = 0
! do c=nO+1,nBas-nR
! do d=c,nBas-nR
! cd = cd + 1
!
! chi = 0d0
! do m=1,nS
! eps = Om(m)**2 + eta**2
! chi = chi - rho(a,c,m)*rho(b,d,m)*Om(m)/eps &
! - rho(a,d,m)*rho(b,c,m)*Om(m)/eps
! end do
!
! KC(ab,cd) = 4d0*lambda*chi/sqrt((1d0 + Kronecker_delta(a,b))*(1d0 + Kronecker_delta(c,d)))
!
! end do
! end do
! end do
! end do
end if

View File

@ -59,6 +59,11 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
double precision,allocatable :: eGWlin(:)
double precision,allocatable :: eGW(:)
double precision :: t0, t1
double precision :: tt0, tt1
call wall_time(t0)
! Output variables
! Hello world
@ -101,26 +106,48 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
! Compute screening !
!-------------------!
call phLR_A(ispin,dRPA,nBas,nC,nO,nV,nR,nS,1d0,eHF,ERI,Aph)
call wall_time(tt0)
call phLR_A(ispin,dRPA,nBas,nC,nO,nV,nR,nS,1d0,eHF,ERI,Aph)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR_A =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA_W) call phLR_B(ispin,dRPA,nBas,nC,nO,nV,nR,nS,1d0,ERI,Bph)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR_B =',tt1-tt0,' seconds'
call wall_time(tt0)
call phLR(TDA_W,nS,Aph,Bph,EcRPA,Om,XpY,XmY)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR =',tt1-tt0,' seconds'
call wall_time(tt0)
if(print_W) call print_excitation_energies('phRPA@RHF','singlet',nS,Om)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for print_excitation_energies =',tt1-tt0,' seconds'
!--------------------------!
! Compute spectral weights !
!--------------------------!
call wall_time(tt0)
call GW_excitation_density(nBas,nC,nO,nR,nS,ERI,XpY,rho)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_excitation_density =',tt1-tt0,' seconds'
!------------------------!
! Compute GW self-energy !
!------------------------!
call wall_time(tt0)
if(regularize) call GW_regularization(nBas,nC,nO,nV,nR,nS,eHF,Om,rho)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_regularization =',tt1-tt0,' seconds'
call wall_time(tt0)
call GW_self_energy_diag(eta,nBas,nC,nO,nV,nR,nS,eHF,Om,rho,EcGM,SigC,Z)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for GW_self_energy_diag =',tt1-tt0,' seconds'
!-----------------------------------!
! Solve the quasi-particle equation !
@ -128,6 +155,7 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
! Linearized or graphical solution?
call wall_time(tt0)
eGWlin(:) = eHF(:) + Z(:)*SigC(:)
if(linearize) then
@ -145,6 +173,8 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
call GW_QP_graph(eta,nBas,nC,nO,nV,nR,nS,eHF,Om,rho,eGWlin,eHF,eGW,Z)
end if
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for QP =',tt1-tt0,' seconds'
! Plot self-energy, renormalization factor, and spectral function
@ -158,19 +188,33 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
! Compute the RPA correlation energy
call wall_time(tt0)
call phLR_A(ispin,dRPA,nBas,nC,nO,nV,nR,nS,1d0,eGW,ERI,Aph)
if(.not.TDA_W) call phLR_B(ispin,dRPA,nBas,nC,nO,nV,nR,nS,1d0,ERI,Bph)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR_A =',tt1-tt0,' seconds'
call wall_time(tt0)
if(.not.TDA_W) call phLR_B(ispin,dRPA,nBas,nC,nO,nV,nR,nS,1d0,ERI,Bph)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR_B =',tt1-tt0,' seconds'
call wall_time(tt0)
call phLR(TDA_W,nS,Aph,Bph,EcRPA,Om,XpY,XmY)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phLR =',tt1-tt0,' seconds'
!--------------!
! Dump results !
!--------------!
call wall_time(tt0)
call print_RG0W0(nBas,nO,eHF,ENuc,ERHF,SigC,Z,eGW,EcRPA,EcGM)
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for print_RG0W0 =',tt1-tt0,' seconds'
! Perform BSE calculation
call wall_time(tt0)
if(dophBSE) then
call GW_phBSE(dophBSE2,TDA_W,TDA,dBSE,dTDA,singlet,triplet,eta,nBas,nC,nO,nV,nR,nS,ERI,dipole_int,eHF,eGW,EcBSE)
@ -221,7 +265,10 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
end if
end if
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for phBSE =',tt1-tt0,' seconds'
call wall_time(tt0)
if(doppBSE) then
call GW_ppBSE(TDA_W,TDA,dBSE,dTDA,singlet,triplet,eta,nBas,nC,nO,nV,nR,nS,ERI,dipole_int,eHF,eGW,EcBSE)
@ -238,6 +285,8 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
write(*,*)
end if
call wall_time(tt1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for ppBSE =',tt1-tt0,' seconds'
! end if
@ -251,4 +300,7 @@ subroutine RG0W0(dotest,doACFDT,exchange_kernel,doXBS,dophBSE,dophBSE2,TDA_W,TDA
end if
call wall_time(t1)
write(*,'(A65,1X,F9.3,A8)') 'Wall time for RG0W0 =',t1-t0,' seconds'
end subroutine