subroutine UG0T0pp(doACFDT,exchange_kernel,doXBS,BSE,TDA_T,TDA,dBSE,dTDA, & spin_conserved,spin_flip,linearize,eta,regularize,nBas,nC,nO,nV, & nR,nS,ENuc,EUHF,ERI,ERI_aaaa,ERI_aabb,ERI_bbbb, & dipole_int_aa,dipole_int_bb,PHF,cHF,eHF) ! Perform one-shot calculation with a T-matrix self-energy (G0T0) implicit none include 'parameters.h' ! Input variables logical,intent(in) :: doACFDT logical,intent(in) :: exchange_kernel logical,intent(in) :: doXBS logical,intent(in) :: BSE logical,intent(in) :: TDA_T logical,intent(in) :: TDA logical,intent(in) :: dBSE logical,intent(in) :: dTDA logical,intent(in) :: spin_conserved logical,intent(in) :: spin_flip logical,intent(in) :: linearize double precision,intent(in) :: eta logical,intent(in) :: regularize 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(nspin) double precision,intent(in) :: ENuc double precision,intent(in) :: EUHF double precision,intent(in) :: eHF(nBas,nspin) double precision,intent(in) :: cHF(nBas,nBas,nspin) double precision,intent(in) :: PHF(nBas,nBas,nspin) double precision,intent(in) :: ERI(nBas,nBas,nBas,nBas) double precision,intent(in) :: ERI_aaaa(nBas,nBas,nBas,nBas) double precision,intent(in) :: ERI_aabb(nBas,nBas,nBas,nBas) double precision,intent(in) :: ERI_bbbb(nBas,nBas,nBas,nBas) double precision,intent(in) :: dipole_int_aa(nBas,nBas,ncart) double precision,intent(in) :: dipole_int_bb(nBas,nBas,ncart) ! Local variables integer :: ispin,is integer :: iblock integer :: nH_sc,nH_sf,nHaa,nHab,nHbb integer :: nP_sc,nP_sf,nPaa,nPab,nPbb double precision :: EcRPA(nspin),Ecaa,Ecbb double precision :: EcBSE(nspin) double precision :: EcAC(nspin) double precision :: EcGM double precision,allocatable :: Om1ab(:),Om1aa(:),Om1bb(:) double precision,allocatable :: X1ab(:,:),X1aa(:,:),X1bb(:,:) double precision,allocatable :: Y1ab(:,:),Y1aa(:,:),Y1bb(:,:) double precision,allocatable :: rho1ab(:,:,:),rho1aa(:,:,:),rho1bb(:,:,:) double precision,allocatable :: Om2ab(:),Om2aa(:),Om2bb(:) double precision,allocatable :: X2ab(:,:),X2aa(:,:),X2bb(:,:) double precision,allocatable :: Y2ab(:,:),Y2aa(:,:),Y2bb(:,:) double precision,allocatable :: rho2ab(:,:,:),rho2aa(:,:,:),rho2bb(:,:,:) double precision,allocatable :: SigT(:,:) double precision,allocatable :: Z(:,:) double precision,allocatable :: eG0T0(:,:) ! Output variables ! Hello world write(*,*) write(*,*)'************************************************' write(*,*)'| One-shot G0T0 calculation |' write(*,*)'| *** Unrestricted version *** |' write(*,*)'************************************************' write(*,*) ! Dimensions of the pp-URPA linear reponse matrices nPaa = nV(1)*(nV(1)-1)/2 nPbb = nV(2)*(nV(2)-1)/2 nHaa = nO(1)*(nO(1)-1)/2; nHbb = nO(2)*(nO(2)-1)/2; nPab = nV(1)*nV(2) nHab = nO(1)*nO(2) nP_sc = nPab nH_sc = nHab nP_sf = nPaa + nPbb nH_sf = nHaa + nHbb ! Memory allocation allocate(Om1ab(nPab),X1ab(nPab,nPab),Y1ab(nHab,nPab), & Om2ab(nHab),X2ab(nPab,nHab),Y2ab(nHab,nHab), & rho1ab(nBas,nBas,nPab),rho2ab(nBas,nBas,nHab), & Om1aa(nPaa),X1aa(nPaa,nPaa),Y1aa(nHaa,nPaa), & Om2aa(nHaa),X2aa(nPaa,nHaa),Y2aa(nHaa,nHaa), & rho1aa(nBas,nBas,nPaa),rho2aa(nBas,nBas,nHaa), & Om1bb(nPbb),X1bb(nPbb,nPbb),Y1bb(nHbb,nPbb), & Om2bb(nPbb),X2bb(nPbb,nPbb),Y2bb(nHbb,nPbb), & rho1bb(nBas,nBas,nPbb),rho2bb(nBas,nBas,nHbb), & SigT(nBas,nspin),Z(nBas,nspin), & eG0T0(nBas,nspin)) !---------------------------------------------- ! alpha-beta block !---------------------------------------------- ispin = 1 iblock = 3 ! iblock = 1 ! Compute linear response call ppULR(iblock,TDA,nBas,nC,nO,nV,nR,nPaa,nPab,nPbb,nPab,nHaa,nHab,nHbb,nHab,1d0,eHF,ERI_aaaa, & ERI_aabb,ERI_bbbb,Om1ab,X1ab,Y1ab,Om2ab,X2ab,Y2ab,EcRPA(ispin)) ! EcRPA(ispin) = 1d0*EcRPA(ispin) call print_excitation('pp-RPA (N+2)',iblock,nPab,Om1ab(:)) call print_excitation('pp-RPA (N-2)',iblock,nHab,Om2ab(:)) !---------------------------------------------- ! alpha-alpha block !---------------------------------------------- ispin = 2 iblock = 4 ! Compute linear response call ppULR(iblock,TDA,nBas,nC,nO,nV,nR,nPaa,nPab,nPbb,nPaa,nHaa,nHab,nHbb,nHaa,1d0,eHF,ERI_aaaa, & ERI_aabb,ERI_bbbb,Om1aa,X1aa,Y1aa,Om2aa,X2aa,Y2aa,EcRPA(ispin)) ! EcRPA(ispin) = 2d0*EcRPA(ispin) ! EcRPA(ispin) = 3d0*EcRPA(ispin) call print_excitation('pp-RPA (N+2)',iblock,nPaa,Om1aa(:)) call print_excitation('pp-RPA (N-2)',iblock,nHaa,Om2aa(:)) !---------------------------------------------- ! beta-beta block !---------------------------------------------- ispin = 2 iblock = 7 ! Compute linear response call ppULR(iblock,TDA,nBas,nC,nO,nV,nR,nPaa,nPab,nPbb,nPbb,nHaa,nHab,nHbb,nHbb,1d0,eHF,ERI_aaaa, & ERI_aabb,ERI_bbbb,Om1bb,X1bb,Y1bb,Om2bb,X2bb,Y2bb,EcRPA(ispin)) ! EcRPA(ispin) = 2d0*EcRPA(ispin) ! EcRPA(ispin) = 3d0*EcRPA(ispin) call print_excitation('pp-RPA (N+2)',iblock,nPbb,Om1bb(:)) call print_excitation('pp-RPA (N-2)',iblock,nHbb,Om2bb(:)) !---------------------------------------------- ! Compute T-matrix version of the self-energy !---------------------------------------------- EcGM = 0d0 SigT(:,:) = 0d0 Z(:,:) = 0d0 !alpha-beta block iblock = 3 call UGTpp_excitation_density(iblock,nBas,nC,nO,nV,nR,nHab,nPab,ERI_aaaa,ERI_aabb,ERI_bbbb,X1ab,Y1ab, & rho1ab,X2ab,Y2ab,rho2ab) !alpha-alpha block iblock = 4 call UGTpp_excitation_density(iblock,nBas,nC,nO,nV,nR,nHaa,nPaa,ERI_aaaa,ERI_aabb,ERI_bbbb,X1aa,Y1aa, & rho1aa,X2aa,Y2aa,rho2aa) !beta-beta block iblock = 7 call UGTpp_excitation_density(iblock,nBas,nC,nO,nV,nR,nHbb,nPbb,ERI_aaaa,ERI_aabb,ERI_bbbb,X1bb,Y1bb, & rho1bb,X2bb,Y2bb,rho2bb) call UGTpp_self_energy_diag(eta,nBas,nC,nO,nV,nR,nHaa,nHab,nHbb,nPaa,nPab,nPbb,eHF,Om1aa,Om1ab,Om1bb,& rho1aa,rho1ab,rho1bb,Om2aa,Om2ab,Om2bb,rho2aa,rho2ab,rho2bb,EcGM,SigT) call UGTpp_renormalization_factor(eta,nBas,nC,nO,nV,nR,nHaa,nHab,nHbb,nPaa,nPab,nPbb,eHF,Om1aa,Om1ab,& Om1bb,rho1aa,rho1ab,rho1bb,Om2aa,Om2ab,Om2bb,rho2aa,rho2ab,rho2bb,Z) Z(:,:) = 1d0/(1d0 - Z(:,:)) !---------------------------------------------- ! Solve the quasi-particle equation !---------------------------------------------- if(linearize) then eG0T0(:,:) = eHF(:,:) + Z(:,:)*SigT(:,:) else eG0T0(:,:) = eHF(:,:) + SigT(:,:) end if !---------------------------------------------- ! Dump results !---------------------------------------------- ! Compute the ppRPA correlation energy !alpha-beta block ispin = 1 iblock = 3 call ppULR(iblock,TDA,nBas,nC,nO,nV,nR,nPaa,nPab,nPbb,nPab,nHaa,nHab,nHbb,nHab,1d0,eG0T0,ERI_aaaa, & ERI_aabb,ERI_bbbb,Om1ab,X1ab,Y1ab,Om2ab,X2ab,Y2ab,EcRPA(ispin)) !alpha-alpha block ispin = 2 iblock = 4 call ppULR(iblock,TDA,nBas,nC,nO,nV,nR,nPaa,nPab,nPbb,nPaa,nHaa,nHab,nHbb,nHaa,1d0,eG0T0,ERI_aaaa, & ERI_aabb,ERI_bbbb,Om1aa,X1aa,Y1aa,Om2aa,X2aa,Y2aa,EcRPA(ispin)) Ecaa = EcRPA(2) !beta-beta block iblock = 7 call ppULR(iblock,TDA,nBas,nC,nO,nV,nR,nPaa,nPab,nPbb,nPbb,nHaa,nHab,nHbb,nHbb,1d0,eG0T0,ERI_aaaa, & ERI_aabb,ERI_bbbb,Om1bb,X1bb,Y1bb,Om2bb,X2bb,Y2bb,EcRPA(ispin)) Ecbb = EcRPA(2) EcRPA(2) = Ecaa + Ecbb EcRPA(1) = EcRPA(1) - EcRPA(2) EcRPA(2) = 3d0*EcRPA(2) call print_UG0T0(nBas,nO,eHF,ENuc,EUHF,SigT,Z,eG0T0,EcGM,EcRPA) ! Free memory deallocate(Om1ab,X1ab,Y1ab,Om2ab,X2ab,Y2ab,rho1ab,rho2ab, & Om1aa,X1aa,Y1aa,Om2aa,X2aa,Y2aa,rho1aa,rho2aa, & Om1bb,X1bb,Y1bb,Om2bb,X2bb,Y2bb,rho1bb,rho2bb) end subroutine