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arXiv · 2605.19960

PEPSKit.jl: A Julia package for projected entangled-pair state simulations

Paul Brehmer·Lander Burgelman·Zheng-Yuan Yue·Gleb Fedorovich·Jutho Haegeman·Lukas Devos
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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.

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Paul Brehmer, Lander Burgelman, Zheng-Yuan Yue, Gleb Fedorovich, Jutho Haegeman, Lukas Devos. 2026-05-19. PEPSKit.jl: A Julia package for projected entangled-pair state simulations. https://arxiv.org/abs/2605.19960

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