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Prof. Peichen Zhong: Foundation potentials and generative modeling for materials sciences (2025/09/23)

( 2025-09-08 )

Title

Foundation potentials and generative modeling for materials sciences

Speaker


Asst. Prof. Peichen Zhong

National University of Singapore



Time

3:00pm, September 23, 2025

Place

Material Science and Research Building B902

Brief Bio of the Speaker

Dr. Peichen Zhong is an Assistant Professor under the NUS Presidential Young Professorship at the Department of Materials Science and Engineering, National University of Singapore. He obtained a BS in Physics from the University of Science and Technology of China (USTC) in 2018, followed by a PhD in Materials Science from UC Berkeley in 2023. He then completed the postdoctoral work at Lawrence Berkeley National Laboratory (LBNL) and Bakar Institute of Digital Materials for the Planet (BIDMaP). As a computational materials scientist, he is interested in (1) computational modeling of complex materials for renewable energy applications; (2) atomistic simulations with statistical mechanics & first-principles calculations; (3) AI for Science: machine learning interatomic potentials and generative models in scientific applications.

Abstract

Materials modeling with atomistic simulation has become an indispensable tool in computational materials science, enabling precise property predictions and mechanistic insights across a wide range of chemical and structural environments. While recent advancements in artificial intelligence (AI)-assisted techniques, such as machine learning interatomic potentials (MLIPs) trained on extensive databases (e.g., foundational potential), have significantly enhanced temporal and spatial simulation capabilities, exploring high-dimensional chemical spaces with quantum-level accuracy remains computationally demanding. Simultaneously, the emergence of generative modeling has demonstrated its potential to change the landscape of computational materials and chemistry through generative approaches.

In this presentation, I will outline recent progress in universally augmenting foundational potentials with charge and electrical response prediction, referred to as Latent Ewald Summation (LES) for generalized learning schemes of atomic charges and long-range interactions. Beyond the advancements in foundational potential, I will discuss the diffusion-based deep generative model (CHGGen) that integrates host-guided inpainting generation and foundation potential optimization for crystal structure prediction. I will showcase how this model can be used to elucidate atomic configurations and Li transport properties within solid-electrolyte interphases.




Seminar
 
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Links
 
CopyRight@International Center for Quantum Eesign of Functional Materials
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