SYSTEM    = LiF BSE-RPA

ISMEAR    = 0      ! Gaussian smearing
SIGMA     = 0.01   ! smearing in eV, small sigma is required to avoid partial occupancies
ENCUT     = 500    ! energy cutoff

NBANDS    = 64     !  consistent with the ground state

! BSE
ALGO      = BSE    ! use BSE
ANTIRES   = 0      ! Tamm-Dancoff approximation
NBANDSV   = 5      ! number of conduction bands in BSE
NBANDSO   = 5      ! number of valence bands in BSE
CSHIFT    = 0.2    ! complex shift
OMEGAMAX  = 40     ! max. energy
LHARTREE = .TRUE.  ! no RPA diagrams
LADDER   = .FALSE. ! no ladder diagrams
