lattice_utility.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_w_t dlr_on_imfreq(g_Dc_cvt g_c, mesh::imfreq wmesh);
  g_t_t dlr_on_imtime(g_Dc_cvt g_c, mesh::imtime tmesh);
  chi_w_t dlr_on_imfreq(chi_Dc_cvt chi_c, mesh::imfreq wmesh);
  chi_t_t dlr_on_imtime(chi_Dc_cvt chi_c, mesh::imtime tmesh);

  std::tuple<chi_wk_t, chi_k_t> split_into_dynamic_wk_and_constant_k(chi_wk_cvt chi_wk);

  g_fk_t add_dynamic_and_static(g_fk_t g_dyn_fk, e_k_t g_stat_k);
  chi_fk_t add_dynamic_and_static(chi_fk_t chi_dyn_fk, chi_k_t chi_stat_k);

  g_wk_t add_dynamic_and_static(g_wk_t g_dyn_wk, e_k_t g_stat_k);
  chi_wk_t add_dynamic_and_static(chi_wk_t chi_dyn_wk, chi_k_t chi_stat_k);
  g_Dwk_t add_dynamic_and_static(g_Dwk_t g_dyn_wk, e_k_t g_stat_k);
  chi_Dwk_t add_dynamic_and_static(chi_Dwk_t chi_dyn_wk, chi_k_t chi_stat_k);

  double fermi(double e);

  double bose(double e);
} // namespace triqs_tprf