triqs_ctseg::solver_core::nn_tauΒΆ

#include <triqs_ctseg/solver_core.hpp>

Synopsis

block_gf_view<triqs::gfs::imtime> nn_tau ()

Density-density correlation function \(\langle n^\sigma_{a}(\tau) n^{\sigma'}_{b}(0)\rangle\) (see [[measure_nnt]])