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.

Hierarchical Bayesian calibration of mesoscopic models for ultrasound contrast agents from force spectroscopy data

This paper presents a surrogate-accelerated hierarchical Bayesian calibration framework that successfully derives data-informed dissipative particle dynamics models for commercial ultrasound contrast agents by inferring their mechanical parameters from force spectroscopy data across multiple bubble diameters.

Brieuc Benvegnen, Nikolaos Ntarakas, Tilen Potisk, Ignacio Pagonabarraga, Matej Praprotnik2026-04-16🔬 cond-mat.mes-hall

NEPMaker: Active learning of neuroevolution machine learning potential for large cells

The paper introduces NEPMaker, a D-optimality-driven active learning framework integrated with the GPUMD package that enables the efficient construction of robust and transferable neuroevolution potentials for large-scale simulations of complex materials by embedding extrapolative atomic environments into locally periodic structures to minimize labeling costs.

Junjie Wang, Shuning Pan, Haoting Zhang, Qiuhan Jia, Chi Ding, Zheyong Fan, Jian Sun2026-04-16🔬 physics

MolCryst-MLIPs: A Machine-Learned Interatomic Potentials Database for Molecular Crystals

This paper introduces MolCryst-MLIPs, an open database featuring fine-tuned MACE machine-learned interatomic potentials for nine molecular crystal systems, developed via an automated pipeline to enable reliable production molecular dynamics simulations for studying polymorphism.

Adam Lahouari, Shen Ai, Jihye Han, Jillian Hoffstadt, Philipp Hoellmer, Charlotte Infante, Pulkita Jain, Sangram Kadam, Maya M. Martirossyan, Amara McCune, Hypatia Newton, Shlok J. Paul, Willmor Pena (…)2026-04-16🤖 cs.LG

Symmetry-protected coexistence of a nodal surface and multiple types of Weyl fermions in P63P6_3-B30\text{B}_{30}

This paper proposes the structurally stable boron allotrope P63P6_3-B30\text{B}_{30} as a pristine spinless topological semimetal that uniquely hosts a symmetry-protected two-dimensional nodal surface alongside multiple types of Weyl fermions, offering an ideal platform to study the interplay of multidimensional topological states.

Xiao-Jing Gao, Yanfeng Ge, Yan Gao2026-04-16🔬 cond-mat.mtrl-sci

Modal analysis of a domain decomposition method for Maxwell's equations in a waveguide

This paper presents a novel theoretical framework combining Toeplitz matrix spectral analysis and modal decomposition to demonstrate the weak scalability and wave-number robustness of one-level Schwarz domain decomposition methods for solving time-harmonic Maxwell's equations in waveguides with general cross-sections and various transmission conditions.

Victorita Dolean, Antoine Tonnoir, Pierre-Henri Tournier2026-04-15🔬 physics

Teaching Artificial Intelligence to Perform Rapid, Resolution-Invariant Grain Growth Modeling via Fourier Neural Operator

This study introduces a Fourier Neural Operator (FNO) based surrogate model that achieves resolution-invariant, rapid, and accurate prediction of multi-grain microstructural evolution, overcoming the computational limitations of traditional phase-field simulations and the generalization issues of existing machine learning approaches.

Iman Peivaste, Ahmed Makradi, Salim Belouettar2026-04-15🔬 physics

Body-Free Simulation of Three-Dimensional Turbulent Cylinder Wakes

This paper introduces a computationally efficient body-free simulation framework that successfully reconstructs three-dimensional turbulent cylinder wakes at various Reynolds numbers by prescribing low-dimensional inflow profiles from the absolutely unstable near-wake region, thereby demonstrating that the essential wake dynamics are governed by near-wake instability rather than the explicit presence of the cylinder.

Zhicheng Wang, Theo Käufer, Khemraj Shukla, Michael Triantafyllou, George Em Karniadakis2026-04-15🔬 physics