TRIQS: A Toolbox for Research on Interacting Quantum Systems

TL;DR

TRIQS is an open-source computational library that facilitates rapid development of applications in many-body quantum physics, especially for strongly-correlated electronic systems, by providing essential components and interfaces in C++ and Python.

Contribution

It introduces a versatile, modern toolbox that simplifies the creation of quantum many-body solvers and DFT-DMFT interfaces, enhancing research efficiency in strongly-correlated systems.

Findings

Includes state-of-the-art quantum many-body solvers

Provides interfaces between DFT and DMFT codes

Supports development of efficient, concise applications

Abstract

We present the TRIQS library, a Toolbox for Research on Interacting Quantum Systems. It is an open-source, computational physics library providing a framework for the quick development of applications in the field of many-body quantum physics, and in particular, strongly-correlated electronic systems. It supplies components to develop codes in a modern, concise and efficient way: e.g. Green's function containers, a generic Monte Carlo class, and simple interfaces to HDF5. TRIQS is a C++/Python library that can be used from either language. It is distributed under the GNU General Public License (GPLv3). State-of-the-art applications based on the library, such as modern quantum many-body solvers and interfaces between density-functional-theory codes and dynamical mean-field theory (DMFT) codes are distributed along with it.