vibeqc.run_rhf_periodic_gamma¶

vibeqc.run_rhf_periodic_gamma(system, basis, options=None, *, dft_plus_u=None)[source]¶

Γ-only closed-shell RHF for a periodic system (molecular-limit regime).

The Γ-only periodic SCF carries a single real Eigen::MatrixXd density and AO overlap — same shape as the molecular case — so the +U kernel is reused unchanged. options is a PeriodicRHFOptions; dft_plus_u is a list of HubbardSite objects (per-atom (atom_index, l, U_ev) channels). Multi-k periodic +U is queued for Increment 4c.