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.

Uncovering Exotic Paired States in the 2D Spin-Imbalanced Fermi Gas with Neural Wave Functions

Using neural network variational Monte Carlo methods, this study maps the zero-temperature phase diagram of a 2D spin-imbalanced Fermi gas, revealing a rich landscape of exotic states including the Fulde-Ferrell-Larkin-Ovchinnikov phase, polarized superfluids, phase separation, and a unique crystalline phase of Cooper pairs embedded in a Fermi fluid.

Wan Tong Lou, Gino Cassella, Andres Perez Fadon, Halvard Sutterud, David Pfau, James S. Spencer, Johannes Knolle, W. M. C. Foulkes2026-04-29🔬 cond-mat

Adaptive Sensing beyond Non-Adaptive Information Limits: End-to-End Co-Design of Geometry, Policy, and Inference

This paper introduces "joint dynamic programming," a co-design framework that simultaneously optimizes continuous hardware geometry and adaptive measurement policies to significantly outperform traditional non-adaptive or separately optimized approaches in sensing tasks, as demonstrated by substantial error reductions across radar, quantum, and photonic sensor case studies.

Arvin Keshvari, William Tuxbury, Zin Lin2026-04-29🔬 physics.optics

Hardware Realization of a Hamiltonian Simulation Algorithm for Time-Domain Maxwells Equations

This paper presents the first quantum-hardware implementation of a Schrödingerisation-based algorithm for simulating time-domain Maxwell's equations, demonstrating accurate retrieval of electromagnetic field amplitudes and directions on an IonQ QPU for both benchmark problems and scattered fields.

Gautam Sharma, Apurva Tiwari, Niladri Gomes, Jezer Jojo, J. Eric Bracken, Jay Pathak2026-04-29⚛️ quant-ph

Excitation of Low-Frequency Modes and the Effects of Protein Dynamics on Spectral Densities of Bacteriochlorophyll Molecules

This study demonstrates that Born-Oppenheimer molecular dynamics based on density functional-based tight-binding accurately captures low-frequency spectral density features arising from both slow intramolecular vibrations and protein fluctuations in bacteriochlorophyll molecules, outperforming classical force fields and normal mode analysis across various light-harvesting complexes.

Sayan Maity, Tristan A. Mauck, Ulrich Kleinekathöfer2026-04-29🔬 cond-mat.mes-hall

Numerical Investigations of Stable Dynamics in the Presence of Ghosts

This paper employs numerical simulations of coupled scalar fields with opposite kinetic terms to demonstrate that ghost-induced instabilities in classical field theories are not instantaneous but are instead mediated by nonlinear spectral energy transfer, allowing for long-lived metastable regimes controlled by spectral content, amplitude, and specific self-interaction potentials.

Jax Wysong, Samara Overvaag, Hyun Lim, Jung-Han Kimn2026-04-29⚛️ gr-qc

Spin-Axis-Layer Locking for Intrinsic Bipolar Altermagnetic Semiconductors: Proof-of-Concept in Bilayer CuBr2

This paper proposes a universal spin-axis-layer locking (SALL) paradigm, demonstrated via first-principles calculations on twisted bilayer CuBr2, which enables intrinsic bipolar altermagnetic semiconductors with gate-tunable, simultaneous switching of carrier type, spin, and active layer without requiring external strain.

Wei Ma, Dengpan Ma, Zhiheng Lv, Zhifeng Liu2026-04-29🔬 cond-mat.mtrl-sci