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quack/src/eDFT/hybrid_correlation_derivative_discontinuity.f90

47 lines
924 B
Fortran

subroutine hybrid_correlation_derivative_discontinuity(DFA,nEns,wEns,nGrid,weight,rhow,Ec)
! Compute the correlation hybrid part of the derivative discontinuity
implicit none
include 'parameters.h'
! Input variables
integer,intent(in) :: DFA
integer,intent(in) :: nEns
double precision,intent(in) :: wEns(nEns)
integer,intent(in) :: nGrid
double precision,intent(in) :: weight(nGrid)
double precision,intent(in) :: rhow(nGrid,nspin)
! Local variables
! Output variables
double precision,intent(out) :: Ec(nsp,nEns)
! Select correlation functional
select case (DFA)
case (1)
Ec(:,:) = 0d0
case (2)
Ec(:,:) = 0d0
case (3)
Ec(:,:) = 0d0
case default
call print_warning('!!! Hybrid correlation functional not available !!!')
stop
end select
end subroutine hybrid_correlation_derivative_discontinuity