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.

Real-Time Surrogate Modeling for Personalized Blood Flow Prediction and Hemodynamic Analysis

This paper presents a systematic framework utilizing a deep neural surrogate model trained on a physiologically constrained virtual cohort to enable real-time, personalized prediction of blood flow and cardiac output, thereby filtering non-physiological parameters, optimizing synthetic dataset generation, and facilitating the estimation of central aortic hemodynamics from clinical data.

Sokratis J. Anagnostopoulos, George Rovas, Vasiliki Bikia, Theodore G. Papaioannou, Athanase D. Protogerou, Nikolaos Stergiopulos2026-04-06🔬 physics

Fast and Accurate Inverse Blood Flow Modeling from Minimal Cuff-Pressure Data via PINNs

This paper presents a fast and accurate, fully noninvasive framework using physics-informed neural networks (PINNs) combined with a 1-D arterial model to estimate personalized central hemodynamic parameters, such as cardiac output and central systolic blood pressure, from minimal cuff-pressure data in just 5–10 minutes.

Sokratis J. Anagnostopoulos, Georgios Rovas, Lydia Aslanidou, Vasiliki Bikia, Nikolaos Stergiopulos2026-04-06🔬 physics

RiteWeight: Randomized Iterative Trajectory Reweighting for Steady-State Distributions Without Discretization Error

The paper introduces RiteWeight, an algorithm that estimates stationary distributions from unconverged molecular dynamics data by iteratively reweighting trajectory segments with randomized clustering to eliminate discretization errors and generate accurate observables for both equilibrium and nonequilibrium steady states.

Sagar Kania, Robert J. Webber, Gideon Simpson, David Aristoff, Daniel M. Zuckerman2026-04-03🔬 physics

Understanding multi-fidelity training of machine-learned force-fields

This study systematically compares pre-training/fine-tuning and multi-headed training strategies for machine-learned force fields, revealing that while pre-training offers superior accuracy through method-specific representations, multi-headed training provides a practical trade-off by learning method-independent representations that enable cost-efficient universal models.

John L. A. Gardner, Hannes Schulz, Jean Helie, Lixin Sun, Gregor N. C. Simm2026-04-03🔬 physics