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 Thin Sheet Volume Integral Equation Solver for Simulation of Bianisotropic Metasurfaces

This paper presents a novel thin-sheet volume integral equation solver that rigorously enforces generalized sheet transition conditions for 3D bianisotropic metasurfaces by treating tangential and normal flux densities as distinct unknowns, thereby improving accuracy over conventional methods while demonstrating robust performance in various electromagnetic transformation scenarios.

Sebastian Celis Sierra, Meruyert Khamitova, Ran Zhao, Sadeed Bin Sayed, Hakan Bagci2026-04-24🔬 physics

Nearly Complete Charge--Spin Conversion via Strain-Eliminated Fermi Pockets in a dd-Wave Altermagnet

This study demonstrates that applying in-plane equibiaxial tensile strain to the room-temperature altermagnet KV2_2Se2_2O eliminates parasitic Fermi pockets, thereby restoring flat-band geometry and achieving a record charge-to-spin conversion efficiency of approximately 96%, which establishes strain engineering as a practical route for high-efficiency spintronic devices.

Wancheng Zhang, Zhenhua Zhang, Rui Xiong, Zhihong Lu2026-04-24🔬 cond-mat.mtrl-sci

Multiscale Analysis of Woven Composites Using Hierarchical Physically Recurrent Neural Networks

This study proposes a Hierarchical Physically Recurrent Neural Network (HPRNN) framework that integrates micromechanical data and physical laws across two scales to create a computationally efficient, interpretable, and generalizable surrogate model for predicting the nonlinear elasto-plastic behavior of woven composites under complex cyclic loading.

Ehsan Ghane, Marina A. Maia, Iuri B. C. M. Rocha, Martin Fagerström, Mohsen Mirakhalaf2026-04-23🔬 physics

Supersolid phase in two-dimensional soft-core bosons at finite temperature

This study investigates the finite-temperature phase diagram of two-dimensional soft-core bosons using self-consistent Hartree-Fock and quantum Monte Carlo methods, identifying a broad supersolid phase and a potential intermediate hexatic phase while validating mean-field theory as an effective tool for analyzing these transitions.

Sebastiano Peotta, Gabriele Spada, Stefano Giorgini, Sebastiano Pilati, Alessio Recati2026-04-23🔬 cond-mat

Challenges in predicting positron annihilation lifetimes in lead halide perovskites: correlation functionals and polymorphism

This study demonstrates that the choice of electron-positron correlation functional, particularly the use of the non-local weighted density approximation (WDA), is critical for accurately predicting positron annihilation lifetimes in lead halide perovskites, revealing that previous discrepancies in theoretical predictions and experimental interpretations of cation vacancies stem from the sensitivity of these materials to the specific approximation used.

Kajal Madaan, Guido Roma, Jasurbek Gulomov, Pascal Pochet, Catherine Corbel, Ilja Makkonen2026-04-23🔬 cond-mat.mtrl-sci

Symmetry Adapted Analysis of Screw Dislocation: Electronic Structure and Carrier Recombination Mechanisms in GaN

By restoring the exact algebra of the screw dislocation group to establish rigorous symmetry constraints, this study reveals that a piezoelectric effect at the core of screw dislocations in GaN strongly suppresses radiative recombination in favor of non-radiative capture, thereby explaining their detrimental impact on the material's luminous efficiency.

Yuncheng Xie, Haozhe Shi, Menglin Huang, Weibin Chu, Shiyou Chen, Xin-Gao Gong2026-04-23🔬 cond-mat.mtrl-sci