This collection explores the fascinating intersection where the laws of physics meet the complex machinery of chemistry. Here, researchers investigate how quantum mechanics governs molecular bonds, how light interacts with matter at the atomic scale, and how fundamental forces shape chemical reactions. It is a realm where abstract mathematical models collide with tangible substances to reveal the hidden mechanisms driving our material world.

On Gist.Science, we process every new preprint in this category directly from arXiv to make these discoveries accessible to everyone. Whether you are a seasoned expert or a curious reader, you will find both plain-language explanations and detailed technical summaries for each paper. Below are the latest contributions from the community pushing the boundaries of physical chemistry.

Some challenges of diffused interfaces in implicit-solvent models

This study investigates the impact of diffuse interface representations in implicit-solvent models, revealing that while a hyperbolic tangent function with an optimal steepness parameter (kp3k_p \approx 3) improves solvation energy accuracy, binding free energy predictions remain highly sensitive to this parameter, necessitating values between 2 and 20.

Mauricio Guerrero-Montero, Michal Bosy, Christopher D. Cooper2026-04-20🔬 physics

Electron transfer in confined electromagnetic fields: a unified Fermi's golden rule rate theory and extension to lossy cavities

This paper presents a unified Fermi's golden rule rate theory for nonadiabatic electron transfer in confined electromagnetic fields that remains valid across all temperature and cavity time scales, extends to lossy cavities via an effective spectral density, and demonstrates key phenomena such as resonance-enhanced rates and electron-transfer-induced photon emission.

Wenxiang Ying, Abraham Nitzan2026-04-20🔬 physics

SeQuant Framework for Symbolic and Numerical Tensor Algebra. I. Core Capabilities

SeQuant is an open-source library that employs a novel graph-theoretic tensor network canonicalizer to unify symbolic and numerical tensor algebra, enabling efficient handling of complex expressions involving symmetries, non-commutative operators, and parametric mode dependencies for applications in quantum simulation and data science.

Bimal Gaudel, Robert G. Adam, Ajay Melekamburath, Conner Masteran, Nakul Teke, Azam Besharatnik, Andreas Köhn, Edward F. Valeev2026-04-20⚛️ quant-ph

Comparing the latent features of universal machine-learning interatomic potentials

This paper systematically analyzes the distinct latent feature representations learned by universal machine-learning interatomic potentials (uMLIPs), revealing significant cross-model differences, dataset-dependent trends, persistent pre-training biases after fine-tuning, and a method for compressing atom-level features into global structure-level descriptors.

Sofiia Chorna, Davide Tisi, Cesare Malosso, Wei Bin How, Michele Ceriotti, Sanggyu Chong2026-04-20🔬 cond-mat.mtrl-sci

Thermal conductivities of monolayer graphene oxide from machine learning molecular dynamics simulations

This study employs a machine-learned neuroevolution potential to perform large-scale molecular dynamics simulations, revealing that the thermal conductivity of reduced graphene oxide is strongly suppressed by oxidation but moderately enhanced by higher hydroxyl-to-oxygen ratios, thereby establishing a predictive framework for linking chemical reduction chemistry to heat transport in heterogeneous carbon materials.

Bohan Zhang, Biyuan Liu, Penghua Ying, Zherui Chen, Yanzhou Wang, Yonglin Zhang, Haikuan Dong, Jinglei Yang, Zheyong Fan2026-04-20🔬 physics

Facet-dependent Chemical Kinetics Governed Growth of Twisted Graphene Layers with Pre-designed Angles

This study presents a scalable chemical vapor deposition strategy to synthesize twisted graphene layers with pre-designed angles on platinum substrates by leveraging facet-dependent chemical kinetics and substrate reconstruction to control graphene orientation, folding, and tearing.

Chaowu Xue, Mengzhao Sun, Zixuan Zhou, Zhuoran Yao, Li-Qun Shen, Xiao Kong, Honglong Zhao, Feng Ding, Marc Willinger, Zhongkai Liu, Zhu-Jun Wang2026-04-20🔬 cond-mat.mtrl-sci