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.

Estimating Solvation Free Energies with Boltzmann Generators

This paper introduces a Boltzmann generator framework based on normalizing flows that directly maps solvent configurations between solutes of different sizes, demonstrating its ability to accurately and efficiently estimate solvation free energies for challenging transformations while significantly enhancing configurational overlap compared to conventional methods.

Maximilian Schebek, Nikolas M. Froböse, Bettina G. Keller, Jutta Rogal2026-04-02🔬 cond-mat

Spatio-Temporal Uncertainty-Modulated Physics-Informed Neural Networks for Solving Hyperbolic Conservation Laws with Strong Shocks

The paper proposes the Spatio-Temporal Uncertainty-Modulated PINN (UM-PINN), a probabilistic framework that leverages homoscedastic aleatoric uncertainty and adaptive weighting to effectively resolve strong shock waves in hyperbolic conservation laws, significantly outperforming standard Physics-Informed Neural Networks in accuracy and shock resolution.

Darui Zhao, Ze Tao, Fujun Liu2026-04-02🔬 physics

Towards Verifiable and Self-Correcting AI Physicists for Quantum Many-Body Simulations

The paper introduces PhysVEC, a multi-agent framework that leverages programming and scientific verifiers to ensure code correctness and physical validity, significantly improving the reliability and accuracy of LLM-driven automated discovery in quantum many-body physics as demonstrated on a new benchmark dataset.

Ken Deng, Xiangfei Wang, Guijing Duan, Chen Mo, Junkun Huang, Runqing Zhang, Ling Qian, Zhiguo Huang, Jize Han, Di Luo2026-04-02🔬 physics

Bent optical waveguide finite element analysis with a 3D envelope Maxwell model

This paper presents a novel numerical methodology using an ultraweak variational formulation of the envelope Maxwell model, discretized by the discontinuous Petrov-Galerkin (DPG) method with specialized perfectly matched layers, to accurately extract optical field losses in 3D circularly coiled waveguides as a boundary value problem, achieving stable convergence for the first time with this specific approach.

Jaime Mora-Paz, Stefan Henneking, Leszek Demkowicz, Jacob Grosek2026-04-02🔬 physics.optics

MVNN: A Measure-Valued Neural Network for Learning McKean-Vlasov Dynamics from Particle Data

This paper introduces a measure-valued neural network that learns measure-dependent interaction forces directly from particle trajectories to model McKean-Vlasov dynamics, supported by theoretical guarantees on well-posedness and universal approximation, and validated through diverse numerical experiments demonstrating accurate prediction and strong generalization.

Liyao Lyu, Xinyue Yu, Hayden Schaeffer2026-04-02🔢 math

Discovery of Symbolic Hamiltonian Expressions with Buckingham-Symplectic Networks

The paper introduces BuSyNet, a deep learning architecture that integrates dimensional consistency and symplectic geometry to discover interpretable, closed-form symbolic Hamiltonian expressions, achieving superior long-term prediction accuracy and stability on physical systems like the harmonic oscillator and Kepler problem compared to state-of-the-art methods.

Joe Germany, Joseph Bakarji, Sara Najem2026-04-02🌀 nlin