/
orb_range.irp.f
89 lines (77 loc) · 3.72 KB
/
orb_range.irp.f
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
BEGIN_PROVIDER [double precision, state_av_act_two_rdm_alpha_alpha_mo, (n_act_orb,n_act_orb,n_act_orb,n_act_orb)]
implicit none
double precision, allocatable :: state_weights(:)
BEGIN_DOC
! state_av_act_two_rdm_alpha_alpha_mo(i,j,k,l) = state average physicist two-body rdm restricted to the ACTIVE indices for alpha-alpha electron pairs
! = <Psi| a^{\dagger}_i a^{\dagger}_j a_l a_k |Psi>
END_DOC
allocate(state_weights(N_states))
state_weights = state_average_weight
integer :: ispin
! condition for alpha/beta spin
ispin = 1
state_av_act_two_rdm_alpha_alpha_mo = 0.D0
call orb_range_two_rdm_state_av(state_av_act_two_rdm_alpha_alpha_mo,n_act_orb,n_act_orb,list_act,list_act_reverse,state_weights,ispin,psi_coef,size(psi_coef,2),size(psi_coef,1))
END_PROVIDER
BEGIN_PROVIDER [double precision, state_av_act_two_rdm_beta_beta_mo, (n_act_orb,n_act_orb,n_act_orb,n_act_orb)]
implicit none
double precision, allocatable :: state_weights(:)
BEGIN_DOC
! state_av_act_two_rdm_beta_beta_mo(i,j,k,l) = state average physicist two-body rdm restricted to the ACTIVE indices for beta-beta electron pairs
! = <Psi| a^{\dagger}_i a^{\dagger}_j a_l a_k |Psi>
END_DOC
allocate(state_weights(N_states))
state_weights = state_average_weight
integer :: ispin
! condition for alpha/beta spin
ispin = 2
state_av_act_two_rdm_beta_beta_mo = 0.d0
call orb_range_two_rdm_state_av(state_av_act_two_rdm_beta_beta_mo,n_act_orb,n_act_orb,list_act,list_act_reverse,state_weights,ispin,psi_coef,size(psi_coef,2),size(psi_coef,1))
END_PROVIDER
BEGIN_PROVIDER [double precision, state_av_act_two_rdm_alpha_beta_mo, (n_act_orb,n_act_orb,n_act_orb,n_act_orb)]
implicit none
double precision, allocatable :: state_weights(:)
BEGIN_DOC
! state_av_act_two_rdm_alpha_beta_mo(i,j,k,l) = state average physicist two-body rdm restricted to the ACTIVE indices for alpha-beta electron pairs
! = <Psi| a^{\dagger}_{i,alpha} a^{\dagger}_{j,beta} a_{l,beta} a_{k,alpha} |Psi>
END_DOC
allocate(state_weights(N_states))
state_weights = state_average_weight
integer :: ispin
! condition for alpha/beta spin
print*,''
print*,''
print*,''
print*,'providint state_av_act_two_rdm_alpha_beta_mo '
ispin = 3
print*,'ispin = ',ispin
state_av_act_two_rdm_alpha_beta_mo = 0.d0
call orb_range_two_rdm_state_av(state_av_act_two_rdm_alpha_beta_mo,n_act_orb,n_act_orb,list_act,list_act_reverse,state_weights,ispin,psi_coef,size(psi_coef,2),size(psi_coef,1))
END_PROVIDER
BEGIN_PROVIDER [double precision, state_av_act_two_rdm_spin_trace_mo, (n_act_orb,n_act_orb,n_act_orb,n_act_orb)]
implicit none
BEGIN_DOC
! state_av_act_two_rdm_spin_trace_mo(i,j,k,l) = state average physicist spin trace two-body rdm restricted to the ACTIVE indices
! The active part of the two-electron energy can be computed as:
!
! \sum_{i,j,k,l = 1, n_act_orb} state_av_act_two_rdm_spin_trace_mo(i,j,k,l) * < ii jj | kk ll >
!
! with ii = list_act(i), jj = list_act(j), kk = list_act(k), ll = list_act(l)
END_DOC
double precision, allocatable :: state_weights(:)
allocate(state_weights(N_states))
state_weights = state_average_weight
integer :: ispin
! condition for alpha/beta spin
ispin = 4
state_av_act_two_rdm_spin_trace_mo = 0.d0
integer :: i
double precision :: wall_0,wall_1
call wall_time(wall_0)
print*,'providing the state average TWO-RDM ...'
print*,'psi_det_size = ',psi_det_size
print*,'N_det = ',N_det
call orb_range_two_rdm_state_av(state_av_act_two_rdm_spin_trace_mo,n_act_orb,n_act_orb,list_act,list_act_reverse,state_weights,ispin,psi_coef,N_states,size(psi_coef,1))
call wall_time(wall_1)
print*,'Time to provide the state average TWO-RDM',wall_1 - wall_0
END_PROVIDER