Quick and dirty TRIQS wrapper around the Pomerol exact diagonalization library.
To learn how to use this wrapper, see example subdir in the source directory.
- Diagonalization of finite fermionic models with Hamiltonians written in terms of second quantization operators.
- Models with fermion-boson coupling of the form
$\sum_m (\hat O_m a^\dagger_m + \hat O_m^\dagger a_m)$ , where$\hat O_m$ are arbitrary fermionic operators. - Access to the full eigensystem of the Hamiltonian, and to the sector (invariant subspace) structure of the Hilbert space.
- Calculation of single-particle Green's functions:
$G(\tau)$ ,$G(i\omega_n)$ ,$G(\omega)$ . - Calculation of anomalous single-particle Green's functions:
$F(\tau)$ ,$F(i\omega_n)$ ,$F(\omega)$ . - Calculation of two-particle Green's functions:
$G(\omega;\nu,\nu')$ and$G(\omega;\ell,\ell')$ . - Calculation of ensemble averages of quadratic operators
$\langle O_i O_j \rangle$ and quartic operators$\langle O_i O_j O_k O_l \rangle$ , where each of$O_i, O_j, O_k, O_l$ is either a creation or annihilation operator of fermions. - Calculation of dynamic susceptibilities
$\langle \mathbb{T} c^\dagger_i(\tau) c_j(0^+) c^\dagger_k(\tau) c_l(0) \rangle$ ,$\langle \mathbb{T} c^\dagger_i(\tau) c_j(\tau) c^\dagger_k(0^+) c_l(0) \rangle$ ,$\langle \mathbb{T} c^\dagger_i(\tau) c_j(0) c^\dagger_k(0^+) c_l(\tau) \rangle$ in the imaginary time, Matsubara frequency, or real frequency representation. - Calculation of 3-point fermion-boson susceptibilities
$\langle \mathbb{T} c^\dagger_i(\tau) c_j(0^+) c^\dagger_k(\tau') c_l(0) \rangle$ ,$\langle \mathbb{T} c^\dagger_i(\tau) c_j(\tau') c^\dagger_k(0^+) c_l(0) \rangle$ ,$\langle \mathbb{T} c^\dagger_i(\tau) c_j(0) c^\dagger_k(0^+) c_l(\tau') \rangle$ in the Matsubara frequency representation.
Notation for the two-particle Green's functions is adopted from the PhD thesis of Lewin Boehnke.
- Install the Pomerol exact diagonalization library.
- Install the TRIQS library.
source <path_to_triqs_install_dir>/share/triqs/triqsvars.sh(skip this step if TRIQS has been installed in a system location, e.g./usror/usr/localon Linux).git clone https://github.com/pomerol-ed/pomerol2triqs.git pomerol2triqs.gitmkdir pomerol2triqs.build && cd pomerol2triqs.buildcmake ../pomerol2triqs.git -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=<path_to_install_dir> -DPOMEROL_PATH=<path_to_pomerol_install_dir>makemake testmake install
| pomerol2triqs release | Pomerol version | TRIQS version |
|---|---|---|
| v0.12 | 2.2, 2.3 | 4.0.x |
| v0.11 | 2.2, 2.3 | 3.2.x, 3.3.x |
| v0.10 | 2.2 | 3.2.x, 3.3.x |
| v0.9 | 2.1 | 3.2.x, 3.3.x |
| v0.8 | 2.1 | 3.1.x |
| v0.7 | 2.0 | 3.1.x |
| v0.6 | 2.0 | 3.0.x |
| v0.5 | 1.3 | 3.0.x |
| v0.4 | 1.3 | 2.2.x |
| v0.3 | 1.3 | 2.1.x |
Copyright (C) 2017-2026 Igor Krivenko <iskrivenko [at] proton [dot] me>
With contributions from
- Hugo U.R. Strand
- Nils Wentzell
- Dominik Kiese
This program 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.
This program 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 this program. If not, see http://www.gnu.org/licenses/.