qlbm - A Quantum Lattice Boltzmann Software Framework

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TL;DR

In-depth description of a software package that simplifies the development ana analysis of quantum algorithms for lattice Boltzmann methods and lattice gas automata.

Abstract

We present qlbm, a Python software package designed to facilitate the development, simulation, and analysis of Quantum Lattice Boltzmann Methods (QBMs). qlbm is a modular framework that introduces a quantum component abstraction hierarchy tailored to the implementation of novel QBMs. The framework interfaces with state-of-the-art quantum software infrastructure to enable efficient simulation and validation pipelines, and leverages novel execution and pre-processing techniques that significantly reduce the computational resources required to develop quantum circuits. We demonstrate the versatility of the software by showcasing multiple QBMs in 2D and 3D with complex boundary conditions, integrated within automated benchmarking utilities. Accompanying the source code are extensive test suites, thorough online documentation resources, analysis tools, visualization methods, and demos that aim to increase the accessibility of QBMs while encouraging reproducibility

Citation

@article{georgescu2025qlbm,
title = {qlbm – A quantum lattice Boltzmann software framework},
journal = {Computer Physics Communications},
volume = {315},
pages = {109699},
year = {2025},
issn = {0010-4655},
doi = {https://doi.org/10.1016/j.cpc.2025.109699},
url = {https://www.sciencedirect.com/science/article/pii/S0010465525002012},
author = {Călin A. Georgescu and Merel A. Schalkers and Matthias M{\"o}ller},
}