PEPSKit.jl: A Julia package for projected entangled-pair state simulations
Strongly Correlated Electrons
2026-05-20 v1 Computational Physics
Quantum Physics
Abstract
We present PEPSKit.jl, a Julia package for simulating two-dimensional quantum many-body systems with infinite projected entangled-pair states (iPEPS). PEPSKit.jl builds on the TensorKit.jl package for tensor computations and provides high-level algorithms for iPEPS simulations that support both Abelian and non-Abelian symmetries, as well as fermionic systems. This work gives an overview of the main package features, which include support for ground-state, time-evolution, and finite-temperature simulations in systems with different physical symmetries and lattice geometries. These capabilities are illustrated through various examples and technical benchmarks.
Keywords
Cite
@article{arxiv.2605.19960,
title = {PEPSKit.jl: A Julia package for projected entangled-pair state simulations},
author = {Paul Brehmer and Lander Burgelman and Zheng-Yuan Yue and Gleb Fedorovich and Jutho Haegeman and Lukas Devos},
journal= {arXiv preprint arXiv:2605.19960},
year = {2026}
}
Comments
24 pages, 8 figures