Block Green's functions

Detailed Description

Block-diagonal Green's function containers.

Many physical problems are naturally block-diagonal (e.g. in spin or orbital sectors). triqs::gfs::block_gf and its view triqs::gfs::block_gf_view represent a vector of Green's functions grouped into named blocks, while triqs::gfs::block2_gf and triqs::gfs::block2_gf_view provide the two-index analogue. The block structure of a Green's function is described by triqs::gfs::gf_struct_t.

Classes
class	triqs::gfs::block_gf< Mesh, Target, Layout, Arity >
	The owning block Green's function container. More...
class	triqs::gfs::block_gf_view< Mesh, Target, Layout, Arity, IsConst >
	A non-owning view of a block Green's function. More...

Typedefs
template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_layout>
using	triqs::gfs::block2_gf = block_gf<Mesh, Target, Layout, 2>
	Owning two-index block Green's function (a matrix of blocks).
template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_stride_layout>
using	triqs::gfs::block2_gf_const_view = block_gf_view<Mesh, Target, Layout, 2, true>
	Const view of a two-index block Green's function.
template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_stride_layout>
using	triqs::gfs::block2_gf_view = block_gf_view<Mesh, Target, Layout, 2, false>
	Mutable view of a two-index block Green's function.
template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_stride_layout, int Arity = 1>
using	triqs::gfs::block_gf_const_view = block_gf_view<Mesh, Target, Layout, Arity, true>
	Const view alias for a block Green's function.
using	triqs::gfs::gf_struct_t = std::vector<std::pair<std::string, long>>
	Type describing the structure of a block Green's function.

Typedef Documentation

block2_gf

template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_layout>

using triqs::gfs::block2_gf = block_gf<Mesh, Target, Layout, 2>

#include <triqs/gfs/block/block_gf.hpp>

Owning two-index block Green's function (a matrix of blocks).

Template Parameters

Mesh	Mesh type of each block.
Target	Target type of each block.
Layout	Memory layout policy of each block.

Definition at line 70 of file block_gf.hpp.

block2_gf_const_view

template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_stride_layout>

using triqs::gfs::block2_gf_const_view = block_gf_view<Mesh, Target, Layout, 2, true>

#include <triqs/gfs/block/block_gf.hpp>

Const view of a two-index block Green's function.

Template Parameters

Mesh	Mesh type of each block.
Target	Target type of each block.
Layout	Memory layout policy of each block.

Definition at line 92 of file block_gf.hpp.

block2_gf_view

template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_stride_layout>

using triqs::gfs::block2_gf_view = block_gf_view<Mesh, Target, Layout, 2, false>

#include <triqs/gfs/block/block_gf.hpp>

Mutable view of a two-index block Green's function.

Template Parameters

Mesh	Mesh type of each block.
Target	Target type of each block.
Layout	Memory layout policy of each block.

Definition at line 81 of file block_gf.hpp.

block_gf_const_view

template<typename Mesh, typename Target = matrix_valued, typename Layout = nda::C_stride_layout, int Arity = 1>

using triqs::gfs::block_gf_const_view = block_gf_view<Mesh, Target, Layout, Arity, true>

#include <triqs/gfs/block/block_gf.hpp>

Const view alias for a block Green's function.

Template Parameters

Mesh	Mesh type of each block.
Target	Target type of each block.
Layout	Memory layout policy of each block.
Arity	Number of block indices.

Definition at line 60 of file block_gf.hpp.

gf_struct_t

using triqs::gfs::gf_struct_t = std::vector<std::pair<std::string, long>>

#include <triqs/gfs/block/gf_struct.hpp>

Type describing the structure of a block Green's function.

Each entry is a pair (block name, block size); the list of entries defines the blocks of a triqs::gfs::block_gf and the matrix size of each block.

Definition at line 41 of file gf_struct.hpp.