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.

NMRTrans: Structure Elucidation from Experimental NMR Spectra via Set Transformers

The paper introduces NMRTrans, a novel architecture that models NMR spectra as unordered peak sets and leverages a newly curated large-scale experimental dataset (NMRSpec) to achieve state-of-the-art performance in molecular structure elucidation from experimental spectra.

Liujia Yang, Zhuo Yang, Jiaqing Xie, Yubin Wang, Ben Gao, Tianfan Fu, Xingjian Wei, Jiaxing Sun, Jiang Wu, Conghui He, Yuqiang Li, Qinying Gu2026-02-12🤖 cs.AI

Projection-Based Memory Kernel Coupling Theory for Quantum Dynamics: A Stable Framework for Non-Markovian Simulations

This paper proposes a stable, projection-based methodology that transforms non-Markovian memory kernels into a system of coupled linear differential equations, using spectral projection to eliminate unstable modes and ensure efficient, long-time convergence in quantum dynamics simulations.

Wei Liu, Rui-Hao Bi, Yu Su, Limin Xu, Zhennan Zhou, Yao Wang, Wenjie Dou2026-02-12⚛️ quant-ph

Connection between $GW$ and Extended Coupled Cluster

This paper establishes a formal connection between Coupled-Cluster theory and Green's function methods by demonstrating that the $GW$ approximation is equivalent to a specific EOM-drCCD treatment, ultimately proposing the Extended Coupled-Cluster (ECC) ansatz as a unified framework to bridge these two approaches and facilitate systematically improvable vertex corrections.

Johannes Tölle, Marios-Petros Kitsaras, Andreas Irmler, Andreas Grüneis, Pierre-François Loos2026-02-12🔬 physics

Pseudorotation and N-body Forces in an Optical Matter System

This paper demonstrates that an 8-nanoparticle "kite" optical matter system undergoes 2D pseudorotation driven by N-body forces, showing that these collective interactions allow the structure to maintain stability and undergo continuous rearrangement despite having inter-particle separations that would suggest instability based on simple 2-body physics.

John Linderman, Shiqi Chen, Yanzeng Li, Alexandria Hoehn, Stuart A. Rice, Norbert F. Scherer2026-02-12🔬 physics.optics