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.

The Convergence Frontier: Integrating Machine Learning and High Performance Quantum Computing for Next-Generation Drug Discovery

This paper proposes that integrating High-Performance Computing, Machine Learning, and High-Performance Quantum Computing into a unified framework will overcome the historical trade-off between chemical accuracy and computational scalability, thereby revolutionizing next-generation drug discovery and materials science.

Narjes Ansari, César Feniou, Nicolaï Gouraud, Daniele Loco, Siwar Badreddine, Baptiste Claudon, Félix Aviat, Marharyta Blazhynska, Kevin Gasperich, Guillaume Michel, Diata Traore, Corentin Villot, Tho (…)2026-03-19⚛️ quant-ph

Mechanistic Insights into Enhanced Alkaline Oxygen Evolution on Zn-Al Alloy Electrodes

This study demonstrates that Zn-Al alloy electrodes with 10–15 wt.% aluminum content significantly enhance alkaline oxygen evolution reaction performance by optimizing thermodynamic stability and electronic structure, achieving superior catalytic activity and lower overpotentials compared to pure zinc and other transition-metal-based catalysts.

Abdul Ahad Mamun, Rokon Uddin Mahmud, Shahin Aziz, Muhammad Shahriar Bashar, Ahmed Sharif, Muhammad Anisuzzaman Talukder2026-03-19🔬 cond-mat.mtrl-sci

Rotational excitation of asymmetric-top molecular ions by electron impact: application to H2_2O+^+, HDO+^+, and D2_2O+^+

This paper theoretically investigates the rotational excitation of asymmetric-top molecular ion isotopologues H2_2O+^+, HDO+^+, and D2_2O+^+ by electron impact using a combined framework of R-matrix scattering, multichannel quantum-defect theory, and adapted frame transformation and Coulomb-Born approximations to provide state-resolved cross sections and kinetic rate coefficients.

Joshua Forer2026-03-19🔬 physics.atom-ph

Quantum Chemistry Driven Molecular Inverse Design with Data-free Reinforcement Learning

This paper presents a data-free reinforcement learning framework that integrates quantum mechanics calculations to generate novel molecules with desired properties, achieving significant speed-ups and success in both known and unexplored chemical spaces without relying on pre-trained datasets.

Francesco Calcagno, Luca Serfilippi, Giorgio Franceschelli, Marco Garavelli, Mirco Musolesi, Ivan Rivalta2026-03-18🔬 physics

System-Bath Modeling in Vibrational Spectroscopy via Molecular Dynamics: A Machine Learning Framework for Hierarchical Equations of Motion (HEOM)

This paper presents a machine learning framework that utilizes classical molecular dynamics trajectories to construct interpretable system-bath models with combined Brownian and Drude spectral distribution functions, enabling rigorous quantum simulations of ultrafast vibrational energy relaxation and dephasing in solution via the hierarchical equations of motion (HEOM).

Kwanghee Park, Ju-Yeon Jo, Yoshitaka Tanimura2026-03-18🔬 physics

Toward Quantum-Aware Machine Learning: Improved Prediction of Quantum Dissipative Dynamics via Complex Valued Neural Networks

This paper introduces complex-valued neural networks (CVNNs) as a physics-consistent framework that outperforms traditional real-valued models in predicting quantum dissipative dynamics by preserving essential amplitude-phase correlations, thereby achieving superior convergence, stability, and physical fidelity for open quantum systems.

Muhammad Atif, Arif Ullah, Ming Yang2026-03-18🔬 physics

On the performance of QTP functionals applied to second-order response properties II: Dynamic polarizability and long-range C6_6 coefficients

This study extends the evaluation of Quantum Theory Project (QTP) functionals to dynamic polarizabilities and long-range C6_6 dispersion coefficients, identifying TPSS0 and QTP01 as the top performers for dynamic polarizabilities and QTP01 and LC-QTP as the best within the QTP family for C6_6 coefficients among 25 tested exchange-correlation functionals.

Rodrigo A. Mendes, Peter R. Franke, Ajith Perera, Rodney J. Bartlett2026-03-18🔬 physics