Standard output files

The quantum impurity solvers will generate a lot of data files at run time. In this section, we will depict their formats and usages in detail.

The data files could be classified as the following kinds:

• Direct output
  • Terminal output // Many useful stuffs in it
• Green's function data
  • solver.green.dat // $G(\tau)$
  • solver.weiss.dat // $G_0(\tau)$
  • solver.grn.dat // $G(i\omega_n)$
  • solver.wss.dat // $G_0(i\omega_n)$
• Hybridization function data
  • solver.hybri.dat // $\Delta(\tau)$
  • solver.hyb.dat // $\Delta(i\omega_n)$
• Self-energy function data
  • solver.sgm.dat // $\Sigma(i\omega_n)$
  • solver.hub.dat // $\Sigma_{\text{atomic}}(i\omega_n)$ and $G_{\text{atomic}}(i\omega_n)$
• Two-particle Green's function data
  • solver.twop.dat // Two-particle Green's function and vertex function
  • solver.vrtx.dat // Two-particle Green's function and vertex function
  • solver.pair.dat // Pairing susceptibility
• Susceptibility data
  • solver.schi.dat // Spin-spin correlation function in $\tau$ space
  • solver.sfom.dat // Spin-spin correlation function in Matsubara frequency space
  • solver.ochi.dat // Orbital-orbital correlation in $\tau$ space
  • solver.ofom.dat // Orbital-orbital correlation in Matsubara frequency space
• Physical observables data
  • solver.hist.dat // Histogram for perturbation expansion order
  • solver.prob.dat // Atomic state probability
  • solver.nmat.dat // Occupation number
  • solver.kmat.dat // $\langle k \rangle$ and $\langle k^2 \rangle$
  • solver.lmat.dat // $\langle k_L \rangle$ and $\langle k_R \rangle$
• Miscellaneous data
  • solver.kernel.dat // Frequency-dependent interaction
  • solver.status.dat // Status of the quantum impurity solvers
  • solver.diag.dat // Snapshot of the current configuration for diagrammatic perturbation expansion