chi_wr_from_chi_tr

Synopsis:

triqs_tprf::chi_wr_t chi_wr_from_chi_tr (triqs_tprf::chi_tr_cvt chi_tr, int nw)

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

Parameters

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

  in imaginary time and real space.

Return value

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

in Matsubara frequency and real-space.

Documentation

Computes

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