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.

A Reduced Order Model approach for First-Principles Molecular Dynamics Computations

This paper presents a data-driven reduced order model that bypasses iterative wavefunction optimization in Kohn-Sham Density Functional Theory by constructing a low-dimensional basis from representative atomic configurations, enabling efficient and accurate Born-Oppenheimer molecular dynamics simulations as demonstrated on a water molecule.

Siu Wun Cheung, Youngsoo Choi, Jean-Luc Fattebert, Jonas Kaufman, Daniel Osei-Kuffuor2026-02-27🔬 cond-mat.mtrl-sci

First-principles and tight-binding analysis of thermoelectricity in irradiated WSe2_2

This study demonstrates that monochromatic irradiation of zigzag monolayer WSe2_2 nanoribbons, modeled via a tight-binding Floquet framework and density functional theory, significantly enhances the thermoelectric figure of merit ($ZT > 1$) by reshaping electronic band structures and reducing lattice thermal conductivity through anharmonic scattering.

Cynthia Ihuoma Osuala, Tanu Choudhary, Raju K. Biswas, Sudin Ganguly, Santanu K. Maiti2026-02-27🔬 cond-mat.mes-hall

Towards nonlinear thermohydrodynamic simulations via the Onsager-Regularized Lattice Boltzmann Method

This paper presents a theoretical analysis and numerical validation of the Onsager-Regularized Lattice Boltzmann Method, demonstrating that it achieves higher-order accuracy and mitigates lattice isotropy errors in nonlinear thermohydrodynamic simulations on standard lattices without requiring external correction terms.

Anirudh Jonnalagadda, Amit Agrawal, Atul Sharma, Walter Rocchia, Sauro Succi2026-02-26🔬 physics