chi_wk_from_chi_wr

Synopsis:

triqs_tprf::chi_wk_t chi_wk_from_chi_wr (triqs_tprf::chi_wr_cvt chi_wr)

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

Parameters

• chi_wr: Generalized susceptibility \(\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{r})\)

  in Matsubara frequency and real space.

Return value

Generalized susceptibility \(\chi_{\bar{a}b\bar{c}d}(\omega, \mathbf{k})\)

in Matsubara frequency and momentum space.

Documentation

Computes

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