eliashberg.hpp

/*******************************************************************************
 *
 * TRIQS: a Toolbox for Research in Interacting Quantum Systems
 *
 * Copyright (C) 2019, The Simons Foundation and S. Käser
 * Authors: S. Käser, H. U.R. Strand
 *
 * TRIQS is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * TRIQS. If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/
#pragma once
 
#include "../types.hpp"
 
namespace triqs_tprf {

 
  g_wk_t eliashberg_product(chi_wk_vt Gamma_pp, g_wk_vt g_wk, g_wk_vt delta_wk);

 
  g_wk_t eliashberg_product_fft(chi_tr_vt Gamma_pp_dyn_tr, chi_r_vt Gamma_pp_const_r, g_wk_vt g_wk, g_wk_vt delta_wk);
  g_Dwk_t eliashberg_product_fft(chi_Dtr_vt Gamma_pp_dyn_tr, chi_r_vt Gamma_pp_const_r, g_Dwk_vt g_wk, g_Dwk_vt delta_wk);
  g_wk_t eliashberg_product_fft_constant(chi_r_vt Gamma_pp_const_r, g_wk_vt g_wk, g_wk_vt delta_wk);
  g_Dwk_t eliashberg_product_fft_constant(chi_r_vt Gamma_pp_const_r, g_Dwk_vt g_wk, g_Dwk_vt delta_wk);
  g_wk_t eliashberg_g_delta_g_product(g_wk_vt g_wk, g_wk_vt delta_wk);
  g_Dwk_t eliashberg_g_delta_g_product(g_Dwk_vt g_wk, g_Dwk_vt delta_wk);

  std::tuple<chi_tr_t, chi_r_t> dynamic_and_constant_to_tr(chi_wk_vt Gamma_pp_dyn_wk, chi_k_vt Gamma_pp_const_k);

  std::tuple<chi_Dtr_t, chi_r_t> dynamic_and_constant_to_tr(chi_Dwk_vt Gamma_pp_dyn_wk, chi_k_vt Gamma_pp_const_k);
 
  e_r_t eliashberg_constant_gamma_f_product(chi_r_vt Gamma_pp_const_r, g_tr_t F_tr);
 

  chi_wk_t construct_phi_wk(chi_wk_vt chi, array_contiguous_view<std::complex<double>, 4> U);
}