Computational physics bridges the gap between abstract theory and real-world observation by using powerful computers to solve complex physical problems. This field allows scientists to simulate everything from the collision of subatomic particles to the swirling dynamics of galaxies, offering insights that traditional experiments alone cannot provide.

On Gist.Science, we continuously process every new preprint in this category from arXiv to make these breakthroughs accessible to everyone. Each entry is accompanied by both a clear, plain-language explanation and a detailed technical summary, ensuring that researchers and curious readers alike can grasp the significance of the latest findings without getting lost in dense equations.

Below are the latest papers in computational physics, curated to keep you at the forefront of this rapidly evolving discipline.

Impact of Geant4's Electromagnetic Physics Constructors on Accuracy and Performance of Simulations for Rare Event Searches

This paper quantifies the impact of various Geant4 electromagnetic physics constructors on the accuracy of energy deposition and computational performance for rare event searches using CaWO4_4 and Ge targets, aiming to guide the selection of optimal simulation configurations for background prediction.

H. Kluck, R. Breier, A. Fuß, V. Mokina, V. Palušová, P. Povinec2026-02-20🔭 astro-ph

Probing the partition function for temperature-dependent potentials with nested sampling

This paper introduces a novel nested sampling method that treats temperature as an additional parameter within an extended partition function, enabling the efficient calculation of thermodynamic properties for temperature-dependent potentials in a single run and overcoming the computational inefficiency of traditional temperature-by-temperature approaches.

Lune Maillard, Philippe Depondt, Fabio Finocchi, Simon Huppert, Thomas Plé, Julien Salomon, Martino Trassinelli2026-02-20🔬 physics

Distillation and Interpretability of Ensemble Forecasts of ENSO Phase using Entropic Learning

This paper presents a distillation framework that compresses complex, state-of-the-art eSPA ensemble forecasts of ENSO phase into compact, interpretable models, thereby preserving high predictive skill while enabling rigorous diagnostics of the spatiotemporal dynamics and physical precursors driving long-range ENSO predictability.

Michael Groom, Davide Bassetti, Illia Horenko, Terence J. O'Kane2026-02-20📊 stat

Machine Learning Hamiltonians are Accurate Energy-Force Predictors

This paper introduces QHFlow2, a state-of-the-art machine learning Hamiltonian model that significantly outperforms existing methods in energy and force prediction accuracy by directly evaluating predicted Hamiltonians, achieving NequIP-level force precision and up to 20-fold improvements in energy error on standard benchmarks.

Seongsu Kim, Chanhui Lee, Yoonho Kim, Seongjun Yun, Honghui Kim, Nayoung Kim, Changyoung Park, Sehui Han, Sungbin Lim, Sungsoo Ahn2026-02-20🔬 cond-mat.mtrl-sci

Order of Magnitude Analysis and Data-Based Physics-Informed Symbolic Regression for Turbulent Pipe Flow

This study combines order-of-magnitude analysis of Reynolds-averaged Navier-Stokes equations with data-driven symbolic regression to derive compact, interpretable, and physically constrained correlations for turbulent pipe friction factors that accurately fit experimental data across a wide range of Reynolds numbers and roughness levels.

Yunus Emre Ünal, Özgür Ertunç, Ismail Ari, Ivan Otić2026-02-20🔬 physics