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qp_plugins_scemama/fnmf/dmc_data.irp.f
2022-12-07 10:18:33 +01:00

71 lines
1.5 KiB
Fortran

BEGIN_PROVIDER [ double precision, h_dmc_row , (N_det) ]
&BEGIN_PROVIDER [ double precision, s_dmc_row , (N_det) ]
implicit none
BEGIN_DOC
! Data sampled with QMC=Chem
END_DOC
h_dmc_row(:) = h_dmc(:)
s_dmc_row(:) = s_dmc(:)
call dset_order(h_dmc_row,psi_bilinear_matrix_order_reverse,N_det)
call dset_order(s_dmc_row,psi_bilinear_matrix_order_reverse,N_det)
! integer :: i
! do i=1,N_det
! s_dmc_row(i) = psi_coef(i,1)
! call i_h_psi(psi_det(1,1,i), psi_det, psi_coef, N_int, N_det, &
! N_det, 1, h_dmc_row(i) )
! enddo
END_PROVIDER
BEGIN_PROVIDER [ integer, mat_size ]
implicit none
BEGIN_DOC
! Size of the matrices
END_DOC
mat_size = N_det+1
END_PROVIDER
BEGIN_PROVIDER [ double precision, H_dmc_mat, (mat_size, mat_size) ]
implicit none
BEGIN_DOC
! Hamiltonian extended with DMC data
END_DOC
integer :: i,j
do j=1,N_det
do i=1,N_det
call i_h_j(psi_det(1,1,i), psi_det(1,1,j), N_int, H_dmc_mat(i,j))
enddo
enddo
do i=1,N_det
call i_h_psi(psi_det(1,1,i), psi_det, psi_coef, N_int, N_det, &
N_det, 1, H_dmc_mat(i,N_det+1) )
H_dmc_mat(N_det+1,i) = h_dmc_row(i)
enddo
H_dmc_mat(mat_size,mat_size) = E_dmc - nuclear_repulsion
END_PROVIDER
BEGIN_PROVIDER [ double precision, S_dmc_mat, (mat_size, mat_size) ]
implicit none
BEGIN_DOC
! Overlap matrix extended with DMC data
END_DOC
integer :: i,j
S_dmc_mat = 0.d0
do i=1,mat_size
S_dmc_mat(i,i) = 1.d0
enddo
do i=1,N_det
S_dmc_mat(i,N_det+1) = psi_coef(i,1)
S_dmc_mat(N_det+1,i) = S_dmc_row(i)
enddo
END_PROVIDER