triqs_tprf::chi_wr_from_chi_tr

#include <triqs_tprf.hpp>

Synopsis

chi_wr_t chi_wr_from_chi_tr (chi_tr_cvt chi_tr, int nw)

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

Computes

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

Parameters

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

  in imaginary time and real space.

Returns

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

in Matsubara frequency and real-space.