triqs::atom_diag::atomic_g_tau¶
#include <triqs/atom_diag/gf.hpp>
Synopsis
template<bool Complex>block_gf<imtime> atomic_g_tau (gf_lehmann_t<Complex> const & lehmann,gf_struct_t const & gf_struct,gf_mesh<imtime> const & mesh) template<bool Complex>double beta,gf_struct_t const & gf_struct,int n_tau,excluded_states_t const & excluded_states = {})
Documentation
1) The atomic imaginary time Green’s function, constructed from precomputed Lehmann representation
2) The atomic imaginary time Green’s function, possibly with excluded states (none by default)
Template parameters¶
- Complex Do we have a diagonalization problem with a complex-valued Hamiltonian?
Parameters¶
- lehmann Lehmann representation.
- gf_struct Block structure of the Green’s function, block name -> list of inner indices.
- mesh Imaginary time mesh used in construction.
- atom Solved diagonalization problem.
- beta Inverse temperature.
- n_tau Number of imaginary time points.
- excluded_states Excluded eigenstates as pairs (subspace index, inner index).
Returns¶
Atomic Green’s function \(G_{at}(\tau)\)