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https://github.com/QuantumPackage/qp2.git
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81 lines
1.9 KiB
Fortran
81 lines
1.9 KiB
Fortran
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BEGIN_PROVIDER [real*8, Fipq, (mo_num,mo_num) ]
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BEGIN_DOC
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! the inactive Fock matrix, in molecular orbitals
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END_DOC
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implicit none
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integer :: p,q,k,kk,t,tt,u,uu
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do q=1,mo_num
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do p=1,mo_num
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Fipq(p,q)=one_ints_no(p,q)
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end do
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end do
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! the inactive Fock matrix
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do k=1,n_core_inact_orb
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kk=list_core_inact(k)
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do q=1,mo_num
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do p=1,mo_num
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Fipq(p,q)+=2.D0*bielec_pqxx_no(p,q,k,k) -bielec_pxxq_no(p,k,k,q)
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end do
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end do
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end do
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if (bavard) then
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integer :: i
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write(6,*)
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write(6,*) ' the diagonal of the inactive effective Fock matrix '
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write(6,'(5(i3,F12.5))') (i,Fipq(i,i),i=1,mo_num)
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write(6,*)
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end if
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END_PROVIDER
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BEGIN_PROVIDER [real*8, Fapq, (mo_num,mo_num) ]
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BEGIN_DOC
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! the active active Fock matrix, in molecular orbitals
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! we create them in MOs, quite expensive
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!
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! for an implementation in AOs we need first the natural orbitals
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! for forming an active density matrix in AOs
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!
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END_DOC
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implicit none
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integer :: p,q,k,kk,t,tt,u,uu
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Fapq = 0.d0
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! the active Fock matrix, D0tu is diagonal
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do t=1,n_act_orb
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tt=list_act(t)
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do q=1,mo_num
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do p=1,mo_num
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Fapq(p,q)+=occnum(tt) &
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*(bielec_pqxx_no(p,q,tt,tt)-0.5D0*bielec_pxxq_no(p,tt,tt,q))
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end do
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end do
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end do
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if (bavard) then
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integer :: i
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write(6,*)
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write(6,*) ' the effective Fock matrix over MOs'
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write(6,*)
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write(6,*)
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write(6,*) ' the diagonal of the inactive effective Fock matrix '
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write(6,'(5(i3,F12.5))') (i,Fipq(i,i),i=1,mo_num)
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write(6,*)
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write(6,*)
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write(6,*) ' the diagonal of the active Fock matrix '
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write(6,'(5(i3,F12.5))') (i,Fapq(i,i),i=1,mo_num)
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write(6,*)
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end if
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END_PROVIDER
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