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+---
+title: PySTE
+tags: Hamiltonian-level
+description: A Python package for evolving unitaries and states under the Schrödinger equation using first-order Suzuki-Trotter and computing switching functions.
+---
+
+[[/index|Christopher K. Long]]<a href="https://orcid.org/0009-0001-3230-942X"><font color="#a6ce39"><i class='fa-brands fa-orcid'></i></font></a>,
+Crispin H. W. Barnes<a href="https://orcid.org/0000-0001-7337-7245"><font color="#a6ce39"><i class='fa-brands fa-orcid'></i></font></a>,
+and Normann Mertig<a href="https://orcid.org/0000-0003-3025-7141"><font color="#a6ce39"><i class='fa-brands fa-orcid'></i></font></a>
+
+# Online repositories
+
+- GitHub: https://github.com/Christopher-K-Long/PySTE
+- GitLab (mirror): https://gitlab.com/Christopher-K-Long/PySTE
+- Zenodo (DOI): https://doi.org/10.5281/zenodo.17116431
+
+# README file
+
+![[Repository/README]]
+
+# Repository files
+- [[Repository/README]]
+- [[Repository/ChangeLog]]
+- [[Repository/SECURITY]]
+- [[/Software/PySTE/Repository/LICENSE]]
+
+# Citation
+
+Christopher K. Long, Crispin H. W. Barnes, and Normann Mertig. PySTE, (Zenodo, 2025–2026), DOI: [10.5281/zenodo.17116431](https://doi.org/10.5281/zenodo.17116431).
+
+## BibTeX
+
+```bibtex
+@software{long_2025_17393488,
+    author       = {Long, Christopher K. and
+                    Barnes, Crispin H. W. and
+                    Mertig, Normann},
+    title        = {PySTE},
+    license = {Apache-2.0},
+    publisher    = {Zenodo},
+    doi          = {10.5281/zenodo.17116431},
+    url          = {https://doi.org/10.5281/zenodo.17116431},
+    swhid        = {swh:1:dir:3b56737f50e5a3fb539199daf2725196a630ddc0
+                    ;origin=https://doi.org/10.5281/zenodo.17116431;vi
+                    sit=swh:1:snp:42910d2cf314911d681e3e8c736621fa4232
+                    94ce;anchor=swh:1:rel:36a18efe0d29b7382405e8b9e095
+                    d13b22083112;path=Christopher-K-Long-PySTE-3e79a04
+                    },
+}
+```
+
+# Dependencies I authored
+- [[/Software/Suzuki-Trotter-Evolver/index|Suzuki-Trotter-Evolver]] [@SuzukiTrotterEvolver]
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