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QuantumPackage/plugins/local/slater_tc/symmetrized_3_e_int_prov.irp.f
2024-05-01 23:10:18 +02:00

141 lines
4.2 KiB
Fortran

BEGIN_PROVIDER [ double precision, three_e_diag_parrallel_spin_prov, (mo_num, mo_num, mo_num)]
BEGIN_DOC
!
! matrix element of the -L three-body operator ON A BI ORTHONORMAL BASIS
!
! three_e_diag_parrallel_spin_prov(m,j,i) = All combinations of the form <mji|-L|mji> for same spin matrix elements
!
! notice the -1 sign: in this way three_e_diag_parrallel_spin_prov can be directly used to compute Slater rules with a + sign
!
END_DOC
implicit none
integer :: i, j, m
double precision :: integral, wall1, wall0, three_e_diag_parrallel_spin
three_e_diag_parrallel_spin_prov = 0.d0
print *, ' Providing the three_e_diag_parrallel_spin_prov ...'
integral = three_e_diag_parrallel_spin(1,1,1) ! to provide all stuffs
call wall_time(wall0)
!$OMP PARALLEL &
!$OMP DEFAULT (NONE) &
!$OMP PRIVATE (i,j,m,integral) &
!$OMP SHARED (mo_num,three_e_diag_parrallel_spin_prov)
!$OMP DO SCHEDULE (dynamic)
do i = 1, mo_num
do j = 1, mo_num
do m = j, mo_num
three_e_diag_parrallel_spin_prov(m,j,i) = three_e_diag_parrallel_spin(m,j,i)
enddo
enddo
enddo
!$OMP END DO
!$OMP END PARALLEL
do i = 1, mo_num
do j = 1, mo_num
do m = 1, j
three_e_diag_parrallel_spin_prov(m,j,i) = three_e_diag_parrallel_spin_prov(j,m,i)
enddo
enddo
enddo
call wall_time(wall1)
print *, ' wall time for three_e_diag_parrallel_spin_prov', wall1 - wall0
END_PROVIDER
BEGIN_PROVIDER [ double precision, three_e_single_parrallel_spin_prov, (mo_num, mo_num, mo_num, mo_num)]
BEGIN_DOC
!
! matrix element of the -L three-body operator FOR THE DIRECT TERMS OF SINGLE EXCITATIONS AND BI ORTHO MOs
!
! three_e_single_parrallel_spin_prov(m,j,k,i) = All combination of <mjk|-L|mji> for same spin matrix elements
!
! notice the -1 sign: in this way three_e_3_idx_direct_bi_ort can be directly used to compute Slater rules with a + sign
!
END_DOC
implicit none
integer :: i, j, k, m
double precision :: integral, wall1, wall0, three_e_single_parrallel_spin
three_e_single_parrallel_spin_prov = 0.d0
print *, ' Providing the three_e_single_parrallel_spin_prov ...'
integral = three_e_single_parrallel_spin(1,1,1,1)
call wall_time(wall0)
!$OMP PARALLEL &
!$OMP DEFAULT (NONE) &
!$OMP PRIVATE (i,j,k,m,integral) &
!$OMP SHARED (mo_num,three_e_single_parrallel_spin_prov)
!$OMP DO SCHEDULE (dynamic)
do i = 1, mo_num
do k = 1, mo_num
do j = 1, mo_num
do m = 1, mo_num
three_e_single_parrallel_spin_prov(m,j,k,i) = three_e_single_parrallel_spin(m,j,k,i)
enddo
enddo
enddo
enddo
!$OMP END DO
!$OMP END PARALLEL
call wall_time(wall1)
print *, ' wall time for three_e_single_parrallel_spin_prov', wall1 - wall0
END_PROVIDER
! ---
BEGIN_PROVIDER [ double precision, three_e_double_parrallel_spin_prov, (mo_num, mo_num, mo_num, mo_num, mo_num)]
BEGIN_DOC
!
! matrix element of the -L three-body operator FOR THE DIRECT TERMS OF DOUBLE EXCITATIONS AND BI ORTHO MOs
!
! three_e_double_parrallel_spin_prov(m,l,j,k,i) = <mlk|-L|mji> ::: notice that i is the RIGHT MO and k is the LEFT MO
!
! notice the -1 sign: in this way three_e_3_idx_direct_bi_ort can be directly used to compute Slater rules with a + sign
END_DOC
implicit none
integer :: i, j, k, m, l
double precision :: integral, wall1, wall0, three_e_double_parrallel_spin
three_e_double_parrallel_spin_prov = 0.d0
print *, ' Providing the three_e_double_parrallel_spin_prov ...'
call wall_time(wall0)
integral = three_e_double_parrallel_spin(1,1,1,1,1)
!$OMP PARALLEL &
!$OMP DEFAULT (NONE) &
!$OMP PRIVATE (i,j,k,m,l,integral) &
!$OMP SHARED (mo_num,three_e_double_parrallel_spin_prov)
!$OMP DO SCHEDULE (dynamic)
do i = 1, mo_num
do k = 1, mo_num
do j = 1, mo_num
do l = 1, mo_num
do m = 1, mo_num
three_e_double_parrallel_spin_prov(m,l,j,k,i) = three_e_double_parrallel_spin(m,l,j,k,i)
enddo
enddo
enddo
enddo
enddo
!$OMP END DO
!$OMP END PARALLEL
call wall_time(wall1)
print *, ' wall time for three_e_double_parrallel_spin_prov', wall1 - wall0
END_PROVIDER