mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 19:53:45 +01:00
0a1285405c
- Add Fourier for lattice. - Add regular_bz_mesh, cyclic_lattice, and their FFT. - rm freq_infty. - The gf can now be evaluated on a tail_view, which result in composing the tail. - Fix the following issue : g(om_) << g(om_ +1) will recompose the tail correctly. - TODO : TEST THIS NEW FEATURE IN DETAIL. - Work on singularity for G(x, omega) - Separate the factory for singularity from the data factory in gf. - overload assign_from_functoin (renamed). - Fix singularity_t and co in the gf (const issue). - Clean tail, add tail_const_view - add m_tail for x -> tail on any mesh - test curry + fourier works on k
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*******************************************************************************
|
|
*
|
|
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
|
*
|
|
* Copyright (C) 2014 by O. Parcollet
|
|
*
|
|
* 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 "./tools.hpp"
|
|
#include "./gf.hpp"
|
|
#include "./local/tail.hpp"
|
|
#include "./domains/R.hpp"
|
|
#include "../lattice/cyclic_lattice.hpp"
|
|
#include "./evaluators.hpp"
|
|
|
|
namespace triqs {
|
|
namespace gfs {
|
|
|
|
struct cyclic_lattice {};
|
|
|
|
template <typename Opt> struct gf_mesh<cyclic_lattice, Opt> : lattice::cyclic_lattice_mesh {
|
|
template <typename... T> gf_mesh(T &&... x) : lattice::cyclic_lattice_mesh(std::forward<T>(x)...) {}
|
|
};
|
|
|
|
namespace gfs_implementation {
|
|
|
|
// h5 name
|
|
template <typename Singularity, typename Opt> struct h5_name<cyclic_lattice, matrix_valued, Singularity, Opt> {
|
|
static std::string invoke() { return "R"; }
|
|
};
|
|
|
|
/// --------------------------- data access ---------------------------------
|
|
template <typename Opt> struct data_proxy<cyclic_lattice, matrix_valued, Opt> : data_proxy_array<std::complex<double>, 3> {};
|
|
template <typename Opt> struct data_proxy<cyclic_lattice, scalar_valued, Opt> : data_proxy_array<std::complex<double>, 1> {};
|
|
|
|
/// --------------------------- evaluator ---------------------------------
|
|
|
|
// simple evaluation : take the point on the grid...
|
|
template <> struct evaluator_fnt_on_mesh<cyclic_lattice> {
|
|
size_t n;
|
|
evaluator_fnt_on_mesh() = default;
|
|
template <typename MeshType, typename R> evaluator_fnt_on_mesh(MeshType const &m, R const &r) {
|
|
n = m.modulo_reduce(r).linear_index();
|
|
}
|
|
template <typename F> AUTO_DECL operator()(F const &f) const RETURN(f(n));
|
|
//template <typename F> decltype(auto) operator()(F const &f) const { return f(n); }
|
|
};
|
|
|
|
// --------------------------------------------------------------
|
|
template <typename Target, typename Singularity, typename Opt> struct evaluator<cyclic_lattice, Target, Singularity, Opt> {
|
|
static constexpr int arity = 1;
|
|
|
|
template <typename G, typename R> auto operator()(G const *g, R const &r) const {
|
|
auto n = g->mesh().modulo_reduce(r);
|
|
return (*g)[n];
|
|
}
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|