ranshiju/FT-QES

FT-QES is a niche academic research project providing the source code for a 2018 arXiv paper. With only 2 stars and zero activity for over 7 years (2749 days), it functions strictly as a reference implementation rather than a living software project. Its defensibility is minimal because it lacks a community, documentation, or a maintainer, making it a 'code dump' for archival purposes. While the underlying algorithm—using O(10) sites to simulate infinite-size systems—was a novel combination of variational methods and tensor network concepts at the time, it has likely been superseded by more robust implementations in modern quantum frameworks like PennyLane, Qiskit Nature, or NetKet. Frontier labs have zero interest in this specific domain-specific physics tool, but the project is highly susceptible to displacement by any modern researcher using better-supported libraries. It represents a 'point-in-time' contribution to computational physics rather than a defensible software product.