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Si-Han Hu

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#artificial intelligence Preprint Oct 2026

Recursive Improvement of a Differentiable Scientific Software Ecosystem

Differentiable programming connects scientific computation with gradient-based inference, learning and design. Extending these capabilities across a heterogeneous software ecosystem requires specialized effort to implement derivatives, integrate interfaces and evaluate quality. AI coding agents can accelerate this tran...

Peng-Cheng Hou, Xiao-Jun Tan, Si-Han Hu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Large Knowledge Model: A Knowledge Foundation for Agentic Science at Scale

The Large Knowledge Model is proposed, a growing, agent-native knowledge foundation that provides a general representation of scientific knowledge across disciplines and an agent-native, reasoning-aware scientific retrieval system that retrieves claims together with their reasoning chains and sources, enabling agents t...

Yuan Huang, Si-Han Hu, Hong-Yu Gu et al. · 0 citations
Preprint Sep 2026

Persistence of BKT phase transition in the 2D nonanalytic XY model

We study the two-dimensional XY model with the nonanalytic pair potential $2[(1-\cos\delta)/2]^{p}$, whose small-angle law $\propto|\delta|^{2p}$ carries a cusp for $p<1$ and a flat bottom for $p>1$, invalidating the harmonic spin-wave expansion. Two questions arise: the nature of the low-temperature ($T$) phase and of...

Si-Han Hu, Xian Pan, Kun Chen et al. · 0 citations

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