triqs_tprf::chi_wk_from_chi_wr

#include <triqs_tprf.hpp>

Synopsis

chi_wk_t chi_wk_from_chi_wr (chi_wr_cvt chi_wr)

Parallel Fourier transform from \(\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{r})\) to \(\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{k})\)

Computes

\[\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{k}) = \mathcal{F}_{\mathbf{r} \rightarrow \mathbf{k}} \left\{ \chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{r}) \right\}\]

Parameters

chi_wr Generalized susceptibility \(\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{r})\)
in Matsubara frequency and real space.

Returns

Generalized susceptibility \(\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{k})\): in Matsubara frequency and momentum space.