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https://github.com/QuantumPackage/qp2.git
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235 lines
5.9 KiB
Fortran
235 lines
5.9 KiB
Fortran
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! ---
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double precision function bi_ortho_mo_ints(l, k, j, i)
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BEGIN_DOC
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!
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! <mo^L_k mo^L_l | V^TC(r_12) | mo^R_i mo^R_j>
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!
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! WARNING :: very naive, super slow, only used to DEBUG.
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!
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END_DOC
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implicit none
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integer, intent(in) :: i, j, k, l
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integer :: m, n, p, q
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bi_ortho_mo_ints = 0.d0
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do m = 1, ao_num
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do p = 1, ao_num
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do n = 1, ao_num
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do q = 1, ao_num
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! p1h1p2h2 l1 l2 r1 r2
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bi_ortho_mo_ints += ao_two_e_tc_tot(n,q,m,p) * mo_l_coef(m,l) * mo_l_coef(n,k) * mo_r_coef(p,j) * mo_r_coef(q,i)
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enddo
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enddo
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enddo
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enddo
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end function bi_ortho_mo_ints
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! ---
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BEGIN_PROVIDER [double precision, mo_bi_ortho_tc_two_e_chemist, (mo_num, mo_num, mo_num, mo_num)]
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BEGIN_DOC
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!
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! mo_bi_ortho_tc_two_e_chemist(k,i,l,j) = <k l|V(r_12)|i j> where i,j are right MOs and k,l are left MOs
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!
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END_DOC
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implicit none
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integer :: i, j, k, l, m, n, p, q
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double precision, allocatable :: a1(:,:,:,:), a2(:,:,:,:)
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PROVIDE mo_r_coef mo_l_coef
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allocate(a2(ao_num,ao_num,ao_num,mo_num))
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call dgemm( 'T', 'N', ao_num*ao_num*ao_num, mo_num, ao_num, 1.d0 &
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, ao_two_e_tc_tot(1,1,1,1), ao_num, mo_l_coef(1,1), ao_num &
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, 0.d0 , a2(1,1,1,1), ao_num*ao_num*ao_num)
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allocate(a1(ao_num,ao_num,mo_num,mo_num))
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call dgemm( 'T', 'N', ao_num*ao_num*mo_num, mo_num, ao_num, 1.d0 &
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, a2(1,1,1,1), ao_num, mo_r_coef(1,1), ao_num &
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, 0.d0, a1(1,1,1,1), ao_num*ao_num*mo_num)
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deallocate(a2)
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allocate(a2(ao_num,mo_num,mo_num,mo_num))
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call dgemm( 'T', 'N', ao_num*mo_num*mo_num, mo_num, ao_num, 1.d0 &
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, a1(1,1,1,1), ao_num, mo_l_coef(1,1), ao_num &
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, 0.d0, a2(1,1,1,1), ao_num*mo_num*mo_num)
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deallocate(a1)
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call dgemm( 'T', 'N', mo_num*mo_num*mo_num, mo_num, ao_num, 1.d0 &
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, a2(1,1,1,1), ao_num, mo_r_coef(1,1), ao_num &
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, 0.d0, mo_bi_ortho_tc_two_e_chemist(1,1,1,1), mo_num*mo_num*mo_num)
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deallocate(a2)
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!allocate(a1(mo_num,ao_num,ao_num,ao_num))
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!a1 = 0.d0
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!do m = 1, ao_num
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! do p = 1, ao_num
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! do n = 1, ao_num
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! do q = 1, ao_num
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! do k = 1, mo_num
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! ! (k n|p m) = sum_q c_qk * (q n|p m)
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! a1(k,n,p,m) += mo_l_coef_transp(k,q) * ao_two_e_tc_tot(q,n,p,m)
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! enddo
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! enddo
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! enddo
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! enddo
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!enddo
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!allocate(a2(mo_num,mo_num,ao_num,ao_num))
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!a2 = 0.d0
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!do m = 1, ao_num
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! do p = 1, ao_num
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! do n = 1, ao_num
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! do i = 1, mo_num
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! do k = 1, mo_num
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! ! (k i|p m) = sum_n c_ni * (k n|p m)
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! a2(k,i,p,m) += mo_r_coef_transp(i,n) * a1(k,n,p,m)
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! enddo
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! enddo
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! enddo
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! enddo
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!enddo
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!deallocate(a1)
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!allocate(a1(mo_num,mo_num,mo_num,ao_num))
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!a1 = 0.d0
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!do m = 1, ao_num
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! do p = 1, ao_num
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! do l = 1, mo_num
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! do i = 1, mo_num
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! do k = 1, mo_num
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! a1(k,i,l,m) += mo_l_coef_transp(l,p) * a2(k,i,p,m)
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! enddo
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! enddo
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! enddo
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! enddo
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!enddo
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!deallocate(a2)
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!mo_bi_ortho_tc_two_e_chemist = 0.d0
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!do m = 1, ao_num
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! do j = 1, mo_num
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! do l = 1, mo_num
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! do i = 1, mo_num
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! do k = 1, mo_num
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! mo_bi_ortho_tc_two_e_chemist(k,i,l,j) += mo_r_coef_transp(j,m) * a1(k,i,l,m)
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! enddo
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! enddo
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! enddo
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! enddo
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!enddo
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!deallocate(a1)
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END_PROVIDER
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! ---
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BEGIN_PROVIDER [double precision, mo_bi_ortho_tc_two_e, (mo_num, mo_num, mo_num, mo_num)]
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BEGIN_DOC
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!
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! mo_bi_ortho_tc_two_e(k,l,i,j) = <k l| V(r_12) |i j> where i,j are right MOs and k,l are left MOs
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!
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! the potential V(r_12) contains ALL TWO-E CONTRIBUTION OF THE TC-HAMILTONIAN
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!
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END_DOC
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implicit none
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integer :: i, j, k, l
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PROVIDE mo_bi_ortho_tc_two_e_chemist
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do j = 1, mo_num
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do i = 1, mo_num
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do l = 1, mo_num
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do k = 1, mo_num
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! < k l | V12 | i j > (k i|l j)
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mo_bi_ortho_tc_two_e(k,l,i,j) = mo_bi_ortho_tc_two_e_chemist(k,i,l,j)
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enddo
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enddo
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enddo
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enddo
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FREE mo_bi_ortho_tc_two_e_chemist
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if(noL_standard) then
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PROVIDE noL_2e
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! x 2 because of the Slater-Condon rules convention
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mo_bi_ortho_tc_two_e = mo_bi_ortho_tc_two_e + 2.d0 * noL_2e
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FREE noL_2e
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endif
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END_PROVIDER
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! ---
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BEGIN_PROVIDER [ double precision, mo_bi_ortho_tc_two_e_jj, (mo_num,mo_num)]
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&BEGIN_PROVIDER [ double precision, mo_bi_ortho_tc_two_e_jj_exchange, (mo_num,mo_num)]
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&BEGIN_PROVIDER [ double precision, mo_bi_ortho_tc_two_e_jj_anti, (mo_num,mo_num)]
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BEGIN_DOC
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!
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! mo_bi_ortho_tc_two_e_jj (i,j) = J_ij = <ji|W-K|ji>
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! mo_bi_ortho_tc_two_e_jj_exchange(i,j) = K_ij = <ij|W-K|ji>
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! mo_bi_ortho_tc_two_e_jj_anti (i,j) = J_ij - K_ij
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!
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END_DOC
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implicit none
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integer :: i, j
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mo_bi_ortho_tc_two_e_jj = 0.d0
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mo_bi_ortho_tc_two_e_jj_exchange = 0.d0
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do i = 1, mo_num
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do j = 1, mo_num
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mo_bi_ortho_tc_two_e_jj (i,j) = mo_bi_ortho_tc_two_e(j,i,j,i)
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mo_bi_ortho_tc_two_e_jj_exchange(i,j) = mo_bi_ortho_tc_two_e(i,j,j,i)
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mo_bi_ortho_tc_two_e_jj_anti (i,j) = mo_bi_ortho_tc_two_e_jj(i,j) - mo_bi_ortho_tc_two_e_jj_exchange(i,j)
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enddo
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enddo
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END_PROVIDER
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! ---
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BEGIN_PROVIDER [double precision, tc_2e_3idx_coulomb_integrals , (mo_num,mo_num,mo_num)]
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&BEGIN_PROVIDER [double precision, tc_2e_3idx_exchange_integrals, (mo_num,mo_num,mo_num)]
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BEGIN_DOC
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! tc_2e_3idx_coulomb_integrals (j,k,i) = <jk|ji>
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! tc_2e_3idx_exchange_integrals(j,k,i) = <kj|ji>
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END_DOC
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implicit none
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integer :: i, j, k
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do i = 1, mo_num
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do k = 1, mo_num
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do j = 1, mo_num
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tc_2e_3idx_coulomb_integrals(j, k,i) = mo_bi_ortho_tc_two_e(j ,k ,j ,i )
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tc_2e_3idx_exchange_integrals(j,k,i) = mo_bi_ortho_tc_two_e(k ,j ,j ,i )
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enddo
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enddo
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enddo
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END_PROVIDER
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! ---
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