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mirror of https://github.com/QuantumPackage/qp2.git synced 2024-07-13 14:34:30 +02:00
qp2/src/two_body_rdm/full_orb_2_rdm.irp.f

548 lines
20 KiB
Fortran

BEGIN_PROVIDER [double precision, full_occ_2_rdm_ab_mo, (n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,N_states)]
implicit none
full_occ_2_rdm_ab_mo = 0.d0
integer :: i,j,k,l,iorb,jorb,korb,lorb,istate
BEGIN_DOC
! full_occ_2_rdm_ab_mo(i,j,k,l,istate) = STATE SPECIFIC physicist notation for 2RDM of alpha/beta + beta/alpha electrons
!
! <Psi| a^{\dagger}_{i \alpha} a^{\dagger}_{j \beta} a_{l \beta} a_{k \alpha} |Psi>
!
! + <Psi| a^{\dagger}_{i \beta} a^{\dagger}_{j \alpha} a_{l \alpha} a_{k \beta} |Psi>
!
! WHERE ALL ORBITALS (i,j,k,l) BELONGS TO ALL OCCUPIED ORBITALS : core, inactive and active
!
! THE NORMALIZATION (i.e. sum of diagonal elements) IS SET TO N_{\alpha} * N_{\beta} * 2
!
! !!!!! WARNING !!!!! ALL SLATER DETERMINANTS IN PSI_DET MUST BELONG TO AN ACTIVE SPACE DEFINED BY "list_act"
!
! !!!!! WARNING !!!!! IF "no_core_density" then all elements involving at least one CORE MO ARE SET TO ZERO
END_DOC
full_occ_2_rdm_ab_mo = 0.d0
do istate = 1, N_states
!! PURE ACTIVE PART ALPHA-BETA
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_act_orb
korb = list_act(k)
do l = 1, n_act_orb
lorb = list_act(l)
! alph beta alph beta
full_occ_2_rdm_ab_mo(lorb,korb,jorb,iorb,istate) = &
act_2_rdm_ab_mo(l,k,j,i,istate)
enddo
enddo
enddo
enddo
!! BETA ACTIVE - ALPHA inactive
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! alph beta alph beta
full_occ_2_rdm_ab_mo(korb,jorb,korb,iorb,istate) = 2.d0 * one_e_dm_mo_beta(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA ACTIVE - BETA inactive
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! alph beta alph beta
full_occ_2_rdm_ab_mo(jorb,korb,iorb,korb,istate) = 2.d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA INACTIVE - BETA INACTIVE
!!
do j = 1, n_inact_orb
jorb = list_inact(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! alph beta alph beta
full_occ_2_rdm_ab_mo(korb,jorb,korb,jorb,istate) = 2.D0
enddo
enddo
!!!!!!!!!!!!
!!!!!!!!!!!! if "no_core_density" then you don't put the core part
!!!!!!!!!!!! CAN BE USED
if (.not.no_core_density)then
!! BETA ACTIVE - ALPHA CORE
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
! alph beta alph beta
full_occ_2_rdm_ab_mo(korb,jorb,korb,iorb,istate) = 2.d0 * one_e_dm_mo_beta(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA ACTIVE - BETA CORE
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
! alph beta alph beta
full_occ_2_rdm_ab_mo(jorb,korb,iorb,korb,istate) = 2.d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA CORE - BETA CORE
!!
do j = 1, n_core_orb
jorb = list_core(j)
do k = 1, n_core_orb
korb = list_core(k)
! alph beta alph beta
full_occ_2_rdm_ab_mo(korb,jorb,korb,jorb,istate) = 2.D0
enddo
enddo
endif
enddo
END_PROVIDER
BEGIN_PROVIDER [double precision, full_occ_2_rdm_aa_mo, (n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,N_states)]
implicit none
full_occ_2_rdm_aa_mo = 0.d0
integer :: i,j,k,l,iorb,jorb,korb,lorb,istate
BEGIN_DOC
! full_occ_2_rdm_aa_mo(i,j,k,l,istate) = STATE SPECIFIC physicist notation for 2RDM of alpha/alpha electrons
!
! <Psi| a^{\dagger}_{i \alpha} a^{\dagger}_{j \alpha} a_{l \alpha} a_{k \alpha} |Psi>
!
! WHERE ALL ORBITALS (i,j,k,l) BELONGS TO ALL OCCUPIED ORBITALS : core, inactive and active
!
! THE NORMALIZATION (i.e. sum of diagonal elements) IS SET TO N_{\alpha} * (N_{\alpha} - 1)
!
! !!!!! WARNING !!!!! ALL SLATER DETERMINANTS IN PSI_DET MUST BELONG TO AN ACTIVE SPACE DEFINED BY "list_act"
!
! !!!!! WARNING !!!!! IF "no_core_density" then all elements involving at least one CORE MO is set to zero
END_DOC
do istate = 1, N_states
!! PURE ACTIVE PART ALPHA-ALPHA
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_act_orb
korb = list_act(k)
do l = 1, n_act_orb
lorb = list_act(l)
full_occ_2_rdm_aa_mo(lorb,korb,jorb,iorb,istate) = &
act_2_rdm_aa_mo(l,k,j,i,istate)
enddo
enddo
enddo
enddo
!! ALPHA ACTIVE - ALPHA inactive
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_aa_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_aa_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_aa_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_aa_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA INACTIVE - ALPHA INACTIVE
do j = 1, n_inact_orb
jorb = list_inact(j)
do k = 1, n_inact_orb
korb = list_inact(k)
full_occ_2_rdm_aa_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_aa_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
!!!!!!!!!!
!!!!!!!!!! if "no_core_density" then you don't put the core part
!!!!!!!!!! CAN BE USED
if (.not.no_core_density)then
!! ALPHA ACTIVE - ALPHA CORE
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_aa_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_aa_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_aa_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_aa_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA CORE - ALPHA CORE
do j = 1, n_core_orb
jorb = list_core(j)
do k = 1, n_core_orb
korb = list_core(k)
full_occ_2_rdm_aa_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_aa_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
endif
enddo
END_PROVIDER
BEGIN_PROVIDER [double precision, full_occ_2_rdm_bb_mo, (n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,N_states)]
implicit none
full_occ_2_rdm_bb_mo = 0.d0
integer :: i,j,k,l,iorb,jorb,korb,lorb,istate
BEGIN_DOC
! full_occ_2_rdm_bb_mo(i,j,k,l,istate) = STATE SPECIFIC physicist notation for 2RDM of beta/beta electrons
!
! <Psi| a^{\dagger}_{i \beta} a^{\dagger}_{j \beta} a_{l \beta} a_{k \beta} |Psi>
!
! WHERE ALL ORBITALS (i,j,k,l) BELONGS TO ALL OCCUPIED ORBITALS : core, inactive and active
!
! THE NORMALIZATION (i.e. sum of diagonal elements) IS SET TO N_{\beta} * (N_{\beta} - 1)
!
! !!!!! WARNING !!!!! ALL SLATER DETERMINANTS IN PSI_DET MUST BELONG TO AN ACTIVE SPACE DEFINED BY "list_act"
!
! !!!!! WARNING !!!!! IF "no_core_density" then all elements involving at least one CORE MO is set to zero
END_DOC
do istate = 1, N_states
!! PURE ACTIVE PART beta-beta
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_act_orb
korb = list_act(k)
do l = 1, n_act_orb
lorb = list_act(l)
full_occ_2_rdm_bb_mo(lorb,korb,jorb,iorb,istate) = &
act_2_rdm_bb_mo(l,k,j,i,istate)
enddo
enddo
enddo
enddo
!! beta ACTIVE - beta inactive
!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_bb_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_bb_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_bb_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_bb_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
enddo
enddo
enddo
!! beta INACTIVE - beta INACTIVE
do j = 1, n_inact_orb
jorb = list_inact(j)
do k = 1, n_inact_orb
korb = list_inact(k)
full_occ_2_rdm_bb_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_bb_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
!!!!!!!!!!!!
!!!!!!!!!!!! if "no_core_density" then you don't put the core part
!!!!!!!!!!!! CAN BE USED
if (.not.no_core_density)then
!! beta ACTIVE - beta CORE
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_bb_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_bb_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_bb_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_bb_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
enddo
enddo
enddo
!! beta CORE - beta CORE
do j = 1, n_core_orb
jorb = list_core(j)
do k = 1, n_core_orb
korb = list_core(k)
full_occ_2_rdm_bb_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_bb_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
endif
enddo
END_PROVIDER
BEGIN_PROVIDER [double precision, full_occ_2_rdm_spin_trace_mo, (n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,n_core_inact_act_orb,N_states)]
implicit none
full_occ_2_rdm_spin_trace_mo = 0.d0
integer :: i,j,k,l,iorb,jorb,korb,lorb,istate
BEGIN_DOC
! full_occ_2_rdm_bb_mo(i,j,k,l,istate) = STATE SPECIFIC physicist notation for 2RDM of beta/beta electrons
!
! <Psi| a^{\dagger}_{i \beta} a^{\dagger}_{j \beta} a_{l \beta} a_{k \beta} |Psi>
!
! WHERE ALL ORBITALS (i,j,k,l) BELONGS TO ALL OCCUPIED ORBITALS : core, inactive and active
!
! THE NORMALIZATION (i.e. sum of diagonal elements) IS SET TO N_{elec} * (N_{elec} - 1)
!
! !!!!! WARNING !!!!! ALL SLATER DETERMINANTS IN PSI_DET MUST BELONG TO AN ACTIVE SPACE DEFINED BY "list_act"
!
! !!!!! WARNING !!!!! IF "no_core_density" then all elements involving at least one CORE MO is set to zero
! The two-electron energy of each state can be computed as:
!
! \sum_{i,j,k,l = 1, n_core_inact_act_orb} full_occ_2_rdm_spin_trace_mo(i,j,k,l,istate) * 1/2 * < ii jj | kk ll >
!
! with ii = list_core_inact_act(i), jj = list_core_inact_act(j), kk = list_core_inact_act(k), ll = list_core_inact_act(l)
END_DOC
do istate = 1, N_states
!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!
!! PURE ACTIVE PART SPIN-TRACE
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_act_orb
korb = list_act(k)
do l = 1, n_act_orb
lorb = list_act(l)
full_occ_2_rdm_spin_trace_mo(lorb,korb,jorb,iorb,istate) += &
act_2_rdm_spin_trace_mo(l,k,j,i,istate)
enddo
enddo
enddo
enddo
!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!
!!!!! BETA-BETA !!!!!
!! beta ACTIVE - beta inactive
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_spin_trace_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
enddo
enddo
enddo
!! beta INACTIVE - beta INACTIVE
do j = 1, n_inact_orb
jorb = list_inact(j)
do k = 1, n_inact_orb
korb = list_inact(k)
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_spin_trace_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
if (.not.no_core_density)then
!! beta ACTIVE - beta CORE
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_spin_trace_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
enddo
enddo
enddo
!! beta CORE - beta CORE
do j = 1, n_core_orb
jorb = list_core(j)
do k = 1, n_core_orb
korb = list_core(k)
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_spin_trace_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
endif
!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!
!!!!! ALPHA-ALPHA !!!!!
!! ALPHA ACTIVE - ALPHA inactive
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_spin_trace_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA INACTIVE - ALPHA INACTIVE
do j = 1, n_inact_orb
jorb = list_inact(j)
do k = 1, n_inact_orb
korb = list_inact(k)
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_spin_trace_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
if (.not.no_core_density)then
!! ALPHA ACTIVE - ALPHA CORE
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
! 1 2 1 2 : DIRECT TERM
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
! 1 2 1 2 : EXCHANGE TERM
full_occ_2_rdm_spin_trace_mo(jorb,korb,korb,iorb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
full_occ_2_rdm_spin_trace_mo(korb,jorb,iorb,korb,istate) += -1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA CORE - ALPHA CORE
do j = 1, n_core_orb
jorb = list_core(j)
do k = 1, n_core_orb
korb = list_core(k)
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,jorb,istate) += 1.0d0
full_occ_2_rdm_spin_trace_mo(korb,jorb,jorb,korb,istate) -= 1.0d0
enddo
enddo
endif
!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!
!!!!! ALPHA-BETA + BETA-ALPHA !!!!!
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! ALPHA INACTIVE - BETA ACTIVE
! alph beta alph beta
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
! beta alph beta alph
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_beta(jorb,iorb,istate)
! BETA INACTIVE - ALPHA ACTIVE
! beta alph beta alpha
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
! alph beta alph beta
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0d0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA INACTIVE - BETA INACTIVE
do j = 1, n_inact_orb
jorb = list_inact(j)
do k = 1, n_inact_orb
korb = list_inact(k)
! alph beta alph beta
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,jorb,istate) += 1.0D0
full_occ_2_rdm_spin_trace_mo(jorb,korb,jorb,korb,istate) += 1.0D0
enddo
enddo
!!!!!!!!!!!!
!!!!!!!!!!!! if "no_core_density" then you don't put the core part
!!!!!!!!!!!! CAN BE USED
if (.not.no_core_density)then
do i = 1, n_act_orb
iorb = list_act(i)
do j = 1, n_act_orb
jorb = list_act(j)
do k = 1, n_core_orb
korb = list_core(k)
!! BETA ACTIVE - ALPHA CORE
! alph beta alph beta
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0D0 * one_e_dm_mo_beta(jorb,iorb,istate)
! beta alph beta alph
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0D0 * one_e_dm_mo_beta(jorb,iorb,istate)
!! ALPHA ACTIVE - BETA CORE
! alph beta alph beta
full_occ_2_rdm_spin_trace_mo(jorb,korb,iorb,korb,istate) += 1.0D0 * one_e_dm_mo_alpha(jorb,iorb,istate)
! beta alph beta alph
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,iorb,istate) += 1.0D0 * one_e_dm_mo_alpha(jorb,iorb,istate)
enddo
enddo
enddo
!! ALPHA CORE - BETA CORE
do j = 1, n_core_orb
jorb = list_core(j)
do k = 1, n_core_orb
korb = list_core(k)
! alph beta alph beta
full_occ_2_rdm_spin_trace_mo(korb,jorb,korb,jorb,istate) += 1.0D0
full_occ_2_rdm_spin_trace_mo(jorb,korb,jorb,korb,istate) += 1.0D0
enddo
enddo
endif
enddo
END_PROVIDER