|
| 1 | +@Article{Shi_arXiv_2025_p2503.06039, |
| 2 | + author = {Guoyong Shi and Fenglin Deng and Ri He and Dachuan Chen and Xuejiao |
| 3 | + Chen and Peiheng Jiang and Zhicheng Zhong}, |
| 4 | + title = {{Temperature-driven structural phase transitions in SmNiO{\$}{\_}3{\$}: |
| 5 | + insights from deep potential molecular dynamics simulations}}, |
| 6 | + journal = {arXiv}, |
| 7 | + year = 2025, |
| 8 | + pages = {2503.06039}, |
| 9 | + doi = {10.48550/arXiv.2503.06039}, |
| 10 | + abstract = {The metal-insulator transition (MIT) in rare-earth nickelates |
| 11 | + exemplifies the intricate interplay between electronic correlations |
| 12 | + and lattice dynamics in quantum materials. This work focuses on |
| 13 | + SmNiO{\$}{\_}3{\$} as a prototypical system, employing molecular |
| 14 | + dynamics simulations based on a {''}hidden{''} magnetic potential |
| 15 | + model. Our simulations reveal two key findings. First, the structural |
| 16 | + phase transition in SmNiO{\$}{\_}3{\$} is intrinsically temperature- |
| 17 | + driven and occurs spontaneously via collective lattice distortions. |
| 18 | + Moreover, systematic high-pressure simulations demonstrate a distinct |
| 19 | + pressure dependence of the transition temperature, which decreases |
| 20 | + monotonically with increasing external hydrostatic pressure. These |
| 21 | + results provide atomistic insights into the cooperative mechanisms |
| 22 | + underlying the MIT and the interplay between structural distortions |
| 23 | + and electron correlation effects. The computational approach developed |
| 24 | + herein offers a generalizable framework for investigating complex |
| 25 | + phase transitions in correlated quantum materials.}, |
| 26 | +} |
| 27 | + |
| 28 | +@Article{Pei_arXiv_2025_p2406.05797, |
| 29 | + author = {Qizhi Pei and Rui Yan and Kaiyuan Gao and Jinhua Zhu and Lijun Wu}, |
| 30 | + title = {{3D-MolT5: Leveraging Discrete Structural Information for Molecule-Text |
| 31 | + Modeling}}, |
| 32 | + journal = {arXiv}, |
| 33 | + year = 2025, |
| 34 | + pages = {2406.05797}, |
| 35 | + doi = {10.48550/arXiv.2406.05797}, |
| 36 | + abstract = {The integration of molecular and natural language representations has |
| 37 | + emerged as a focal point in molecular science, with recent |
| 38 | + advancements in Language Models (LMs) demonstrating significant |
| 39 | + potential for comprehensive modeling of both domains. However, |
| 40 | + existing approaches face notable limitations, particularly in their |
| 41 | + neglect of three-dimensional (3D) information, which is crucial for |
| 42 | + understanding molecular structures and functions. While some efforts |
| 43 | + have been made to incorporate 3D molecular information into LMs using |
| 44 | + external structure encoding modules, significant difficulties remain, |
| 45 | + such as insufficient interaction across modalities in pre-training and |
| 46 | + challenges in modality alignment. To address the limitations, we |
| 47 | + propose {\textbackslash}textbf{\{}3D-MolT5{\}}, a unified framework |
| 48 | + designed to model molecule in both sequence and 3D structure spaces. |
| 49 | + The key innovation of our approach lies in mapping fine-grained 3D |
| 50 | + substructure representations into a specialized 3D token vocabulary. |
| 51 | + This methodology facilitates the seamless integration of sequence and |
| 52 | + structure representations in a tokenized format, enabling 3D-MolT5 to |
| 53 | + encode molecular sequences, molecular structures, and text sequences |
| 54 | + within a unified architecture. Leveraging this tokenized input |
| 55 | + strategy, we build a foundation model that unifies the sequence and |
| 56 | + structure data formats. We then conduct joint pre-training with multi- |
| 57 | + task objectives to enhance the model's comprehension of these diverse |
| 58 | + modalities within a shared representation space. Thus, our approach |
| 59 | + significantly improves cross-modal interaction and alignment, |
| 60 | + addressing key challenges in previous work. Further instruction tuning |
| 61 | + demonstrated that our 3D-MolT5 has strong generalization ability and |
| 62 | + surpasses existing methods with superior performance in multiple |
| 63 | + downstream tasks. Our code is available at |
| 64 | + https://github.com/QizhiPei/3D-MolT5.}, |
| 65 | +} |
| 66 | + |
1 | 67 | @Article{Chen_arXiv_2025_p2506.00880,
|
2 | 68 | author = {Zhuo Chen and Yizhen Zheng and Huan Yee Koh and Hongxin Xiang and
|
3 | 69 | Linjiang Chen and Wenjie Du and Yang Wang},
|
|
0 commit comments