Publications

Topological classification through knotted graphs: Fermi surface dispersions and Lifshitz transitions

Hakan Akgün^*†, Xianquan Yan^*†, Ching Hua Lee^†

[Equal contribution; co-first authors listed alphabetically.]

arXiv preprint arXiv:2609.133902026

Under review at Nature Physics

KnottedGraph: Scalable knotted-graph topology for scientific and mathematical discovery

Hakan Akgün^†, Xianquan Yan, Kehan Liu, Zhaoyun Chen, Ching Hua Lee^†

arXiv preprint arXiv:2609.311522026

Practical Error Suppression and Mitigation for Reliable Quantum Computing

Han-Ze Li, Mengjie Yang, Xianquan Yan, Dax Enshan Koh^†, Ching Hua Lee^†, Ruizhe Shen^†

arXiv preprint arXiv:2608.204532026

Under review at Advanced Quantum Technologies

Non-Hermitian Activation of Quantum Mpemba Effect in Dipole-conserving Systems

Yi Qin^†, Han-Ze Li, Chun-Hui Liu, Xianquan Yan^†, Ching Hua Lee^†

2026

Under review at Nature Communications

Deterministic scale-invariant dynamics in a logistic Game-of-Life model

Hakan Akgün, Xianquan Yan, Tamer Taşkıran, Muhamet Ibrahimi, Ching Hua Lee, Seymur Jahangirov

Communications Physics2026

HSG-12M: A Large-Scale Benchmark of Spatial Multigraphs from the Energy Spectra of Non-Hermitian Crystals

Xianquan Yan^†, Hakan Akgün, Kenji Kawaguchi, N. Duane Loh^†, Ching Hua Lee^†

ICLR 2026

Media Coverage:NUS Science↗Sichuan University Physics↗

Classifying the Graph Topology of Non-Hermitian Energy Spectra with Graph Transformer.

Xianquan Yan, Hakan Akgün, Kenji Kawaguchi, N. Duane Loh, Ching Hua Lee

AAAI 2026 XAI4Science Workshop

Multi-Modal Classification of Extended 1D Cellular Automata

Zhaoyun Chen^*, Xianquan Yan^*, Hakan Akgün, N. Duane Loh, Ching Hua Lee

AI4X — Accelerate Conference 2026

Automated Metric Discovery: Navigating Quantum Geometry with Symbolic Regression

Xianquan Yan^†

AI4X 2025 International Conference

Precise Identification of Topological Phase Transitions with Eigensystem-Based Clustering

Xianquan Yan, Jian-Song Pan

AI4X 2025 International Conference