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complex slater_rules_wee_mono

This commit is contained in:
Kevin Gasperich 2020-02-23 16:40:26 -06:00
parent 5ee3fc6e43
commit 0e31cfee7f
2 changed files with 195 additions and 3 deletions

View File

@ -361,3 +361,195 @@ subroutine i_H_j_two_e(key_i,key_j,Nint,hij)
end select
end
!==============================================================================!
! !
! Complex !
! !
!==============================================================================!
subroutine i_Wee_j_single_complex(key_i,key_j,Nint,spin,hij)
use bitmasks
implicit none
BEGIN_DOC
! Returns $\langle i|H|j \rangle$ where $i$ and $j$ are determinants differing by a
! single excitation.
END_DOC
integer, intent(in) :: Nint, spin
integer(bit_kind), intent(in) :: key_i(Nint,2), key_j(Nint,2)
complex*16, intent(out) :: hij
integer :: exc(0:2,2)
double precision :: phase
PROVIDE big_array_exchange_integrals_complex mo_two_e_integrals_in_map
call get_single_excitation_spin(key_i(1,spin),key_j(1,spin),exc,phase,Nint)
call single_excitation_wee_complex(key_i,key_j,exc(1,1),exc(1,2),spin,phase,hij)
end
subroutine i_H_j_mono_spin_one_e_complex(key_i,key_j,Nint,spin,hij)
!todo: check hole/particle m/p ordering?
if (is_complex) then
print*,irp_here,' not implemented for complex'
stop -1
endif
use bitmasks
implicit none
BEGIN_DOC
! Returns $\langle i|H|j \rangle$ where $i$ and $j$ are determinants differing by
! a single excitation.
END_DOC
integer, intent(in) :: Nint, spin
integer(bit_kind), intent(in) :: key_i(Nint,2), key_j(Nint,2)
complex*16, intent(out) :: hij
integer :: exc(0:2,2)
double precision :: phase
call get_single_excitation_spin(key_i(1,spin),key_j(1,spin),exc,phase,Nint)
integer :: m,p
m = exc(1,1)
p = exc(1,2)
hij = phase * mo_one_e_integrals_complex(m,p)
end
subroutine i_H_j_one_e_complex(key_i,key_j,Nint,hij)
!todo: check hole/particle m/p ordering?
if (is_complex) then
print*,irp_here,' not implemented for complex'
stop -1
endif
use bitmasks
implicit none
BEGIN_DOC
! Returns $\langle i|H|j \rangle$ where $i$ and $j$ are determinants.
END_DOC
integer, intent(in) :: Nint
integer(bit_kind), intent(in) :: key_i(Nint,2), key_j(Nint,2)
complex*16, intent(out) :: hij
integer :: degree,m,p
double precision :: diag_h_mat_elem_one_e,phase
integer :: exc(0:2,2,2)
call get_excitation_degree(key_i,key_j,degree,Nint)
hij = (0.d0,0.d0)
if(degree>1)then
return
endif
if(degree==0)then
hij = dcmplx(diag_H_mat_elem_one_e(key_i,N_int),0.d0)
else
call get_single_excitation(key_i,key_j,exc,phase,Nint)
if (exc(0,1,1) == 1) then
! Mono alpha
m = exc(1,1,1)
p = exc(1,2,1)
else
! Mono beta
m = exc(1,1,2)
p = exc(1,2,2)
endif
hij = phase * mo_one_e_integrals_complex(m,p)
endif
end
subroutine i_H_j_two_e_complex(key_i,key_j,Nint,hij)
!todo: check hole/particle m/p ordering?
if (is_complex) then
print*,irp_here,' not implemented for complex'
stop -1
endif
use bitmasks
implicit none
BEGIN_DOC
! Returns $\langle i|H|j \rangle$ where $i$ and $j$ are determinants.
END_DOC
integer, intent(in) :: Nint
integer(bit_kind), intent(in) :: key_i(Nint,2), key_j(Nint,2)
complex*16, intent(out) :: hij
integer :: exc(0:2,2,2)
integer :: degree
complex*16 :: get_two_e_integral_complex
integer :: m,n,p,q
integer :: i,j,k
integer :: occ(Nint*bit_kind_size,2)
double precision :: diag_H_mat_elem, phase,phase_2
integer :: n_occ_ab(2)
PROVIDE mo_two_e_integrals_in_map mo_integrals_map big_array_exchange_integrals_complex ref_bitmask_two_e_energy
ASSERT (Nint > 0)
ASSERT (Nint == N_int)
ASSERT (sum(popcnt(key_i(:,1))) == elec_alpha_num)
ASSERT (sum(popcnt(key_i(:,2))) == elec_beta_num)
ASSERT (sum(popcnt(key_j(:,1))) == elec_alpha_num)
ASSERT (sum(popcnt(key_j(:,2))) == elec_beta_num)
hij = (0.d0,0.d0)
!DIR$ FORCEINLINE
call get_excitation_degree(key_i,key_j,degree,Nint)
integer :: spin
select case (degree)
case (2)
call get_double_excitation(key_i,key_j,exc,phase,Nint)
if (exc(0,1,1) == 1) then
! Mono alpha, mono beta
if(exc(1,1,1) == exc(1,2,2) )then
hij = phase * big_array_exchange_integrals_complex(exc(1,1,1),exc(1,1,2),exc(1,2,1))
else if (exc(1,2,1) ==exc(1,1,2))then
hij = phase * big_array_exchange_integrals_complex(exc(1,2,1),exc(1,1,1),exc(1,2,2))
else
hij = phase*get_two_e_integral_complex( &
exc(1,1,1), &
exc(1,1,2), &
exc(1,2,1), &
exc(1,2,2) ,mo_integrals_map,mo_integrals_map_2)
endif
else if (exc(0,1,1) == 2) then
! Double alpha
hij = phase*(get_two_e_integral_complex( &
exc(1,1,1), &
exc(2,1,1), &
exc(1,2,1), &
exc(2,2,1) ,mo_integrals_map,mo_integrals_map_2) - &
get_two_e_integral_complex( &
exc(1,1,1), &
exc(2,1,1), &
exc(2,2,1), &
exc(1,2,1) ,mo_integrals_map,mo_integrals_map_2) )
else if (exc(0,1,2) == 2) then
! Double beta
hij = phase*(get_two_e_integral_complex( &
exc(1,1,2), &
exc(2,1,2), &
exc(1,2,2), &
exc(2,2,2) ,mo_integrals_map,mo_integrals_map_2) - &
get_two_e_integral_complex( &
exc(1,1,2), &
exc(2,1,2), &
exc(2,2,2), &
exc(1,2,2) ,mo_integrals_map,mo_integrals_map_2) )
endif
case (1)
call get_single_excitation(key_i,key_j,exc,phase,Nint)
!DIR$ FORCEINLINE
call bitstring_to_list_ab(key_i, occ, n_occ_ab, Nint)
if (exc(0,1,1) == 1) then
! Mono alpha
m = exc(1,1,1)
p = exc(1,2,1)
spin = 1
else
! Mono beta
m = exc(1,1,2)
p = exc(1,2,2)
spin = 2
endif
call single_excitation_wee_complex(key_i,key_j,p,m,spin,phase,hij)
case (0)
double precision :: diag_wee_mat_elem
hij = dcmplx(diag_wee_mat_elem(key_i,Nint),0.d0)
end select
end

View File

@ -8,7 +8,7 @@ general:
determinants:
(done) connected_to_ref.irp.f
(done) create_excitations.irp.f
(done?)density_matrix{,_complex}.irp.f
(done?) density_matrix{,_complex}.irp.f
no one_e_dm_dagger_mo_spin_index_complex
need to test for complex
(done) determinants_bitmasks.irp.f
@ -45,11 +45,11 @@ determinants:
made copies of needed functions for complex
still need to do implementation
(done) single_excitations.irp.f
(done?)single_excitation_two_e.irp.f
(done?) single_excitation_two_e.irp.f
(****) slater_rules.irp.f
made copies of needed functions for complex
still need to do implementation
(****) slater_rules_wee_mono.irp.f
(done?) slater_rules_wee_mono.irp.f
(done) sort_dets_ab.irp.f
spindeterminants.ezfio_config
need svd complex?