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quantum_package/plugins/FOBOCI/foboci_lmct_mlct_threshold_old.irp.f

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subroutine FOBOCI_lmct_mlct_old_thr
use bitmasks
implicit none
integer :: i,j,k,l
integer(bit_kind),allocatable :: unpaired_bitmask(:,:)
integer, allocatable :: occ(:,:)
integer :: n_occ_alpha, n_occ_beta
double precision :: norm_tmp(N_states),norm_total(N_states)
logical :: test_sym
double precision :: thr,hij
double precision, allocatable :: dressing_matrix(:,:)
logical :: verbose,is_ok
verbose = .True.
thr = 1.d-12
allocate(unpaired_bitmask(N_int,2))
allocate (occ(N_int*bit_kind_size,2))
do i = 1, N_int
unpaired_bitmask(i,1) = unpaired_alpha_electrons(i)
unpaired_bitmask(i,2) = unpaired_alpha_electrons(i)
enddo
norm_total = 0.d0
call initialize_density_matrix_osoci
call bitstring_to_list(inact_bitmask(1,1), occ(1,1), n_occ_beta, N_int)
print*,''
print*,''
print*,'mulliken spin population analysis'
accu =0.d0
do i = 1, nucl_num
accu += mulliken_spin_densities(i)
print*,i,nucl_charge(i),mulliken_spin_densities(i)
enddo
print*,''
print*,''
print*,'DOING FIRST LMCT !!'
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print*,'Threshold_lmct = ',threshold_lmct
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integer(bit_kind) , allocatable :: zero_bitmask(:,:)
integer(bit_kind) , allocatable :: psi_singles(:,:,:)
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logical :: lmct
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double precision, allocatable :: psi_singles_coef(:,:)
allocate( zero_bitmask(N_int,2) )
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do i = 1, n_inact_orb
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lmct = .True.
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integer :: i_hole_osoci
i_hole_osoci = list_inact(i)
print*,'--------------------------'
! First set the current generators to the one of restart
call set_generators_to_generators_restart
call set_psi_det_to_generators
call check_symetry(i_hole_osoci,thr,test_sym)
if(.not.test_sym)cycle
print*,'i_hole_osoci = ',i_hole_osoci
call create_restart_and_1h(i_hole_osoci)
call set_generators_to_psi_det
print*,'Passed set generators'
call set_bitmask_particl_as_input(reunion_of_bitmask)
call set_bitmask_hole_as_input(reunion_of_bitmask)
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call is_a_good_candidate(threshold_lmct,is_ok,verbose)
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print*,'is_ok = ',is_ok
if(.not.is_ok)cycle
allocate(dressing_matrix(N_det_generators,N_det_generators))
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dressing_matrix = 0.d0
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if(.not.do_it_perturbative)then
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do k = 1, N_det_generators
do l = 1, N_det_generators
call i_h_j(psi_det_generators(1,1,k),psi_det_generators(1,1,l),N_int,hkl)
dressing_matrix(k,l) = hkl
enddo
enddo
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hkl = dressing_matrix(1,1)
do k = 1, N_det_generators
dressing_matrix(k,k) = dressing_matrix(k,k) - hkl
enddo
print*,'Naked matrix'
do k = 1, N_det_generators
write(*,'(100(F12.5,X))')dressing_matrix(k,:)
enddo
! Do all the single excitations on top of the CAS and 1h determinants
call set_bitmask_particl_as_input(reunion_of_bitmask)
call set_bitmask_hole_as_input(reunion_of_bitmask)
call all_single
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! if(dressing_2h2p)then
! call diag_dressed_2h2p_hamiltonian_and_update_psi_det(i_hole_osoci,lmct)
! endif
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! ! Change the mask of the holes and particles to perform all the
! ! double excitations that starts from the active space in order
! ! to introduce the Coulomb hole in the active space
! ! These are the 1h2p excitations that have the i_hole_osoci hole in common
! ! and the 2p if there is more than one electron in the active space
! do k = 1, N_int
! zero_bitmask(k,1) = 0_bit_kind
! zero_bitmask(k,2) = 0_bit_kind
! enddo
! ! hole is possible only in the orbital i_hole_osoci
! call set_bit_to_integer(i_hole_osoci,zero_bitmask(1,1),N_int)
! call set_bit_to_integer(i_hole_osoci,zero_bitmask(1,2),N_int)
! ! and in the active space
! do k = 1, n_act_orb
! call set_bit_to_integer(list_act(k),zero_bitmask(1,1),N_int)
! call set_bit_to_integer(list_act(k),zero_bitmask(1,2),N_int)
! enddo
! call set_bitmask_hole_as_input(zero_bitmask)
! call set_bitmask_particl_as_input(reunion_of_bitmask)
! call all_1h2p
! call diagonalize_CI_SC2
! call provide_matrix_dressing(dressing_matrix,n_det_generators,psi_det_generators)
! ! Change the mask of the holes and particles to perform all the
! ! double excitations that from the orbital i_hole_osoci
! do k = 1, N_int
! zero_bitmask(k,1) = 0_bit_kind
! zero_bitmask(k,2) = 0_bit_kind
! enddo
! ! hole is possible only in the orbital i_hole_osoci
! call set_bit_to_integer(i_hole_osoci,zero_bitmask(1,1),N_int)
! call set_bit_to_integer(i_hole_osoci,zero_bitmask(1,2),N_int)
! call set_bitmask_hole_as_input(zero_bitmask)
! call set_bitmask_particl_as_input(reunion_of_bitmask)
! call set_psi_det_to_generators
! call all_2h2p
! call diagonalize_CI_SC2
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double precision :: hkl
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call provide_matrix_dressing(dressing_matrix,n_det_generators,psi_det_generators)
hkl = dressing_matrix(1,1)
do k = 1, N_det_generators
dressing_matrix(k,k) = dressing_matrix(k,k) - hkl
enddo
print*,'Dressed matrix'
do k = 1, N_det_generators
write(*,'(100(F12.5,X))')dressing_matrix(k,:)
enddo
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! call diag_dressed_matrix_and_set_to_psi_det(psi_det_generators,N_det_generators,dressing_matrix)
endif
call set_intermediate_normalization_lmct_old(norm_tmp,i_hole_osoci)
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do k = 1, N_states
print*,'norm_tmp = ',norm_tmp(k)
norm_total(k) += norm_tmp(k)
enddo
call update_density_matrix_osoci
deallocate(dressing_matrix)
enddo
if(.True.)then
print*,''
print*,'DOING THEN THE MLCT !!'
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print*,'Threshold_mlct = ',threshold_mlct
lmct = .False.
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do i = 1, n_virt_orb
integer :: i_particl_osoci
i_particl_osoci = list_virt(i)
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print*,'--------------------------'
! First set the current generators to the one of restart
call set_generators_to_generators_restart
call set_psi_det_to_generators
call check_symetry(i_particl_osoci,thr,test_sym)
if(.not.test_sym)cycle
print*,'i_particl_osoci= ',i_particl_osoci
! Initialize the bitmask to the restart ones
call initialize_bitmask_to_restart_ones
! Impose that only the hole i_hole_osoci can be done
call modify_bitmasks_for_particl(i_particl_osoci)
call print_generators_bitmasks_holes
! Impose that only the active part can be reached
call set_bitmask_hole_as_input(unpaired_bitmask)
!! call all_single_h_core
call create_restart_and_1p(i_particl_osoci)
!! ! Update the generators
call set_generators_to_psi_det
call set_bitmask_particl_as_input(reunion_of_bitmask)
call set_bitmask_hole_as_input(reunion_of_bitmask)
!! ! so all the mono excitation on the new generators
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call is_a_good_candidate(threshold_mlct,is_ok,verbose)
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print*,'is_ok = ',is_ok
if(.not.is_ok)cycle
allocate(dressing_matrix(N_det_generators,N_det_generators))
if(.not.do_it_perturbative)then
dressing_matrix = 0.d0
do k = 1, N_det_generators
do l = 1, N_det_generators
call i_h_j(psi_det_generators(1,1,k),psi_det_generators(1,1,l),N_int,hkl)
dressing_matrix(k,l) = hkl
enddo
enddo
! call all_single_split(psi_det_generators,psi_coef_generators,N_det_generators,dressing_matrix)
! call diag_dressed_matrix_and_set_to_psi_det(psi_det_generators,N_det_generators,dressing_matrix)
call all_single
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! if(dressing_2h2p)then
! call diag_dressed_2h2p_hamiltonian_and_update_psi_det(i_particl_osoci,lmct)
! endif
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endif
call set_intermediate_normalization_mlct_old(norm_tmp,i_particl_osoci)
do k = 1, N_states
print*,'norm_tmp = ',norm_tmp(k)
norm_total(k) += norm_tmp(k)
enddo
call update_density_matrix_osoci
deallocate(dressing_matrix)
enddo
endif
print*,'norm_total = ',norm_total
norm_total = norm_generators_restart
norm_total = 1.d0/norm_total
! call rescale_density_matrix_osoci(norm_total)
double precision :: accu
accu = 0.d0
do i = 1, mo_tot_num
accu += one_body_dm_mo_alpha_osoci(i,i) + one_body_dm_mo_beta_osoci(i,i)
enddo
print*,'accu = ',accu
end
subroutine FOBOCI_mlct_old
use bitmasks
implicit none
integer :: i,j,k,l
integer(bit_kind),allocatable :: unpaired_bitmask(:,:)
integer, allocatable :: occ(:,:)
integer :: n_occ_alpha, n_occ_beta
double precision :: norm_tmp,norm_total
logical :: test_sym
double precision :: thr
logical :: verbose,is_ok
verbose = .False.
thr = 1.d-12
allocate(unpaired_bitmask(N_int,2))
allocate (occ(N_int*bit_kind_size,2))
do i = 1, N_int
unpaired_bitmask(i,1) = unpaired_alpha_electrons(i)
unpaired_bitmask(i,2) = unpaired_alpha_electrons(i)
enddo
norm_total = 0.d0
call initialize_density_matrix_osoci
call bitstring_to_list(inact_bitmask(1,1), occ(1,1), n_occ_beta, N_int)
print*,''
print*,''
print*,''
print*,'DOING FIRST MLCT !!'
do i = 1, n_virt_orb
integer :: i_particl_osoci
i_particl_osoci = list_virt(i)
print*,'--------------------------'
! First set the current generators to the one of restart
call set_generators_to_generators_restart
call set_psi_det_to_generators
call check_symetry(i_particl_osoci,thr,test_sym)
if(.not.test_sym)cycle
print*,'i_particl_osoci= ',i_particl_osoci
! Initialize the bitmask to the restart ones
call initialize_bitmask_to_restart_ones
! Impose that only the hole i_hole_osoci can be done
call modify_bitmasks_for_particl(i_particl_osoci)
call print_generators_bitmasks_holes
! Impose that only the active part can be reached
call set_bitmask_hole_as_input(unpaired_bitmask)
! call all_single_h_core
call create_restart_and_1p(i_particl_osoci)
! ! Update the generators
call set_generators_to_psi_det
call set_bitmask_particl_as_input(reunion_of_bitmask)
call set_bitmask_hole_as_input(reunion_of_bitmask)
! ! so all the mono excitation on the new generators
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call is_a_good_candidate(threshold_mlct,is_ok,verbose)
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print*,'is_ok = ',is_ok
is_ok =.True.
if(.not.is_ok)cycle
call all_single
call set_intermediate_normalization_mlct_old(norm_tmp,i_particl_osoci)
print*,'norm_tmp = ',norm_tmp
norm_total += norm_tmp
call update_density_matrix_osoci
enddo
print*,'norm_total = ',norm_total
norm_total += 1.d0
norm_total = 1.d0/norm_total
call rescale_density_matrix_osoci(norm_total)
double precision :: accu
accu = 0.d0
do i = 1, mo_tot_num
accu += one_body_dm_mo_alpha_osoci(i,i) + one_body_dm_mo_beta_osoci(i,i)
enddo
print*,'accu = ',accu
end
subroutine FOBOCI_lmct_old
use bitmasks
implicit none
integer :: i,j,k,l
integer(bit_kind),allocatable :: unpaired_bitmask(:,:)
integer, allocatable :: occ(:,:)
integer :: n_occ_alpha, n_occ_beta
double precision :: norm_tmp,norm_total
logical :: test_sym
double precision :: thr
logical :: verbose,is_ok
verbose = .False.
thr = 1.d-12
allocate(unpaired_bitmask(N_int,2))
allocate (occ(N_int*bit_kind_size,2))
do i = 1, N_int
unpaired_bitmask(i,1) = unpaired_alpha_electrons(i)
unpaired_bitmask(i,2) = unpaired_alpha_electrons(i)
enddo
norm_total = 0.d0
call initialize_density_matrix_osoci
call bitstring_to_list(inact_bitmask(1,1), occ(1,1), n_occ_beta, N_int)
print*,''
print*,''
print*,'DOING FIRST LMCT !!'
do i = 1, n_inact_orb
integer :: i_hole_osoci
i_hole_osoci = list_inact(i)
print*,'--------------------------'
! First set the current generators to the one of restart
call set_generators_to_generators_restart
call set_psi_det_to_generators
call check_symetry(i_hole_osoci,thr,test_sym)
if(.not.test_sym)cycle
print*,'i_hole_osoci = ',i_hole_osoci
! Initialize the bitmask to the restart ones
call initialize_bitmask_to_restart_ones
! Impose that only the hole i_hole_osoci can be done
call modify_bitmasks_for_hole(i_hole_osoci)
call print_generators_bitmasks_holes
! Impose that only the active part can be reached
call set_bitmask_particl_as_input(unpaired_bitmask)
! call all_single_h_core
call create_restart_and_1h(i_hole_osoci)
! ! Update the generators
call set_generators_to_psi_det
call set_bitmask_particl_as_input(reunion_of_bitmask)
call set_bitmask_hole_as_input(reunion_of_bitmask)
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call is_a_good_candidate(threshold_lmct,is_ok,verbose)
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print*,'is_ok = ',is_ok
if(.not.is_ok)cycle
! ! so all the mono excitation on the new generators
call all_single
! call set_intermediate_normalization_lmct_bis(norm_tmp,i_hole_osoci)
call set_intermediate_normalization_lmct_old(norm_tmp,i_hole_osoci)
print*,'norm_tmp = ',norm_tmp
norm_total += norm_tmp
call update_density_matrix_osoci
enddo
print*,'norm_total = ',norm_total
norm_total += 1.d0
norm_total = 1.d0/norm_total
call rescale_density_matrix_osoci(norm_total)
double precision :: accu
accu = 0.d0
do i = 1, mo_tot_num
accu += one_body_dm_mo_alpha_osoci(i,i) + one_body_dm_mo_beta_osoci(i,i)
enddo
print*,'accu = ',accu
end