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Machine-learned interatomic potentials (MLIPs) and force fields (i.e. interaction laws for atoms and molecules) are typically trained on limited data-sets that cover only a very small section of the full space of possible input structures.…

数值分析 · 数学 2022-09-13 Christoph Ortner , Yangshuai Wang

Molecular dynamics (MD) employing machine-learned interatomic potentials (MLIPs) serve as an efficient, urgently needed complement to ab initio molecular dynamics (aiMD). By training these potentials on data generated from ab initio…

材料科学 · 物理学 2024-09-19 Kisung Kang , Thomas A. R. Purcell , Christian Carbogno , Matthias Scheffler

Machine learning potential enables molecular dynamics simulations of systems beyond the capability of classical force fields. The traditional approach to develop structural sets for training machine learning potential typically generate a…

计算物理 · 物理学 2021-09-06 Nan Xu , Chen Li , Mandi Fang , Qing Shao , Yingying Lu , Yao Shi , Yi He

Accurate prediction of materials phase diagrams from first principles remains a central challenge in computational materials science. Machine-learning interatomic potentials can provide near-DFT accuracy at a fraction of the cost, but their…

材料科学 · 物理学 2026-02-23 Nico Unglert , Michael Ketter , Georg K. H. Madsen

Recent developments in computational chemistry facilitate the automated quantum chemical exploration of chemical reaction networks for the in-silico prediction of synthesis pathways, yield, and selectivity. However, the underlying quantum…

化学物理 · 物理学 2025-10-22 Marco Eckhoff , Markus Reiher

Ab initio simulations of dislocations are essential to build quantitative models of material strength, but the required system sizes are often at or beyond the limit of existing methods. Many important structures are thus missing in the…

We report on an extensive study of the viscosity of liquid water at near-ambient conditions, performed within the Green-Kubo theory of linear response and equilibrium ab initio molecular dynamics (AIMD), based on density-functional theory…

材料科学 · 物理学 2022-07-05 Cesare Malosso , Linfeng Zhang , Roberto Car , Stefano Baroni , Davide Tisi

Neural network potentials trained on quantum-mechanical data can calculate molecular interactions with relatively high speed and accuracy. However, neural network potentials might exhibit instabilities, nonphysical behavior, or lack…

计算物理 · 物理学 2025-09-24 Kavindri Ranasinghe , Adam L. Baskerville , Geoffrey P. F. Wood , Gerhard Koenig

A subsystem approach for obtaining electron binding energies in the valence region and apply it to the case of halide ions (X$^-$, X = F-At) in water. This approach is based on electronic structure calculations combining the relativistic…

The design of accurate helium-solute interaction potentials for the simulation of chemically complex molecules solvated in superfluid helium has long been a cumbersome task due to the rather weak but strongly anisotropic nature of the…

化学物理 · 物理学 2021-03-25 Christoph Schran , Felix Uhl , Jörg Behler , Dominik Marx

Life on Earth depends upon the dissolution of ionic salts in water, particularly NaCl. However, an atomistic scale understanding of the process remains elusive. Simulations lend themselves conveniently to studying dissolution since they…

化学物理 · 物理学 2022-11-09 Niamh O'Neill , Christoph Schran , Stephen J. Cox , Angelos Michaelides

Machine learning has emerged as an invaluable tool in many research areas. In the present work, we harness this power to predict highly accurate molecular infrared spectra with unprecedented computational efficiency. To account for…

化学物理 · 物理学 2021-03-16 Michael Gastegger , Jörg Behler , Philipp Marquetand

We present a review on the study of metastable silicon, primarily focusing mainly on the aspects of liquid-liquid transition, critical point and phase behaviour, structural and dynamic properties of liquid phase as well as crystal…

材料科学 · 物理学 2021-09-01 Vishwas V. Vasisht , Srikanth Sastry

We performed molecular dynamics (MD) simulations of the nucleation of water vapor in order to test nucleation theories. Simulations were performed for a wide range of supersaturation ratios (S = 3-25) and water temperatures (Tw=300-390K).…

化学物理 · 物理学 2015-06-18 Kyoko K. Tanaka , Akio Kawano , Hidekazu Tanaka

Machine learning plays an increasingly important role in computational chemistry and materials science, complementing computationally intensive ab initio and first-principles methods. Despite their utility, machine-learning models often…

化学物理 · 物理学 2025-05-06 Makoto Takamoto , Viktor Zaverkin , Mathias Niepert

One of the main applications of atomistic computer simulations is the calculation of ligand binding energies. The accuracy of these calculations depends on the force field quality and on the thoroughness of configuration sampling. Sampling…

计算物理 · 物理学 2021-01-11 Valerio Rizzi , Luigi Bonati , Narjes Ansari , Michele Parrinello

The structural and dynamical properties of four silicate liquids (silica, rhyolite, a model basalt and enstatite) are evaluated by ab initio molecular dynamics simulation using the density functional theory and are compared with classical…

统计力学 · 物理学 2015-05-13 R. Vuilleumier , N. Sator , B. Guillot

Micrograph quantification is an essential component of several materials science studies. Machine learning methods, in particular convolutional neural networks, have previously demonstrated performance in image recognition tasks across…

We developed and validated an accurate inter-atomic potential for molecular dynamics simulation in cubic silicon carbide (3C-SiC) using a deep learning framework combined with smooth Ziegler-Biersack-Littmark (ZBL) screened nuclear…

材料科学 · 物理学 2023-06-01 Yong Liu , Hao Wang , Linxin Guo , Zhanfeng Yan , Jian Zheng , Wei Zhou , Jianming Xue

Understanding and accurately predicting hydrogen diffusion in materials is challenging due to the complex interactions between hydrogen defects and the crystal lattice. These interactions span large length and time scales, making them…