triqs.sumk

Momentum-sum helpers for local Green’s functions on discrete k-grids.

Exposes SumkDiscrete (the base class holding a discrete k-grid and performing the k-sum) and SumkDiscreteFromLattice (which builds the grid from a triqs.lattice.tight_binding.TBLattice).

Modules

sumk_discrete	Evaluates the momentum sum \(\sum_k w_k [(i\omega_n + \mu)\mathbf{1} - \epsilon_k - \Sigma(k, i\omega_n)]^{-1}\) on a triqs.gfs.BlockGf.
sumk_discrete_from_lattice	Specialisation of SumkDiscrete that builds the k-grid from a triqs.lattice.tight_binding.TBLattice.