Clay weekly context brief for the Physics category (ISO week 2026-W31).

Clay tracks publications from the Physics feed list. Below are recent items from this category, each with its source and a short description of what the publication covers when one is available in the source feed.

Recent publications:
1. Rapid Aerodynamic Assessment of Flettner Rotor Installations Using an Inviscid CFD Approach
   Source: physics.comp-ph (Computational Physics)
   Link: https://arxiv.org/abs/2505.05401
   This paper introduces an inviscid Computational Fluid Dynamics (CFD) approach for the rapid aerodynamic assessment of Flettner rotor systems on ships.
2. The Limits of Inference in Complex Systems: When Stochastic Models Become Indistinguishable
   Source: physics.bio-ph (Biological Physics)
   Link: https://arxiv.org/abs/2509.24977
   Robust inference for stochastic dynamical systems is often hampered by sparse sampling and the absence of closed-form likelihoods.
3. GraphCast Skill and Systematic Biases in Indian Summer Monsoon Forecasts: Evaluation Against ERA5 and IMERG
   Source: physics.ao-ph (Atmospheric and Oceanic Physics)
   Link: https://arxiv.org/abs/2607.11905
   The Indian Summer Monsoon (ISM) is one of the most dynamically complex components of the global climate system, yet its accurate prediction remains challenging for both physics-based and emerging AI weather models.
4. Electromagnetic Simulations
   Source: physics.acc-ph (Accelerator Physics)
   Link: https://arxiv.org/abs/2607.22407
   This contribution reviews fundamental concepts of electromagnetic simulations for RF structures used in particle accelerators.
5. Generating Samples of Stationary Distributions of Weakly Interacting Diffusion Models Without Finite Particle Truncation: A Weak Generative Approach
   Source: physics.comp-ph (Computational Physics)
   Link: https://arxiv.org/abs/2509.12841
   Computing the stationary probability density and generating corresponding samples for the mean-field model of an infinite number of weakly interacting diffusion particles pose significant numerical challenges, particularly in the phase transition regime where the interchangeability of infinite-time and infinite-particle limits breaks down.
6. Decoding cell signaling via optimal transport and information theory
   Source: physics.bio-ph (Biological Physics)
   Link: https://arxiv.org/abs/2602.18028
   Cellular signal processing performs reliably despite molecular noise.
7. Implications of Doppler shift for High Frequency Ocean Waves Measured Using Drifting Buoys
   Source: physics.ao-ph (Atmospheric and Oceanic Physics)
   Link: https://arxiv.org/abs/2607.08947
   The advent of expendable wave buoys has greatly expanded the data available for evaluating and calibrating wave models.
8. Robustness of Off-Axis Electron Vortices in Nonuniform Magnetic Fields
   Source: physics.acc-ph (Accelerator Physics)
   Link: https://arxiv.org/abs/2607.22315
   Rotational symmetry protects the topological charge of on-axis electron vortices but not of off-axis vortices.
9. Neural Ordinary Differential Equations for Oscillatory Flows in Aeroelasticity with Application to Transonic Buffet
   Source: physics.comp-ph (Computational Physics)
   Link: https://arxiv.org/abs/2607.22402
   Self-excited aerodynamic flows arise across a broad range of systems and can drive nonlinear fluid-structure interactions and aeroelastic instabilities that are challenging and computationally expensive to predict.
10. Quantifying reticulocyte biomechanics in health and disease
   Source: physics.bio-ph (Biological Physics)
   Link: https://arxiv.org/abs/2607.21810
   Red blood cell (RBC) populations are mechanically heterogeneous, yet how this shapes transport, clogging, and rheology in confined environments remains unclear.
11. Anomalous Diffusion of Tropical Cyclones Observed in Huge Ensembles of Hindcasts
   Source: physics.ao-ph (Atmospheric and Oceanic Physics)
   Link: https://arxiv.org/abs/2607.21954
   We examine whether tropical cyclones (TCs) obey ordinary Brownian or anomalous diffusion using a huge ensemble (HENS) of hindcasts for summer 2023.
12. Experimental Demonstration of a Two-Dimensional Nonlinear Integrable System in a Particle Accelerator
   Source: physics.acc-ph (Accelerator Physics)
   Link: https://arxiv.org/abs/2607.21863
   A two-dimensional nonlinear integrable system was experimentally demonstrated at the Fermilab Integrable Optics Test Accelerator.
13. Chiral vibrational modes and vibrational circular dichroism
   Source: physics.comp-ph (Computational Physics)
   Link: https://arxiv.org/abs/2607.22257
   The recent interest in chiral phonons in a variety of physical phenomena and their hypothesized role in the chiral-induced spin selectivity effect [Phys.
14. Energy-resolved measurement of individual GeV muon tracks generated by electrons from a compact Laser-Plasma Accelerator
   Source: physics.acc-ph (Accelerator Physics)
   Link: https://arxiv.org/abs/2607.21830
   Recently, the possibility of LPA-produced muon beams has gained significant interest within the accelerator application community.

Sources in this brief: physics.acc-ph (Accelerator Physics); physics.ao-ph (Atmospheric and Oceanic Physics); physics.bio-ph (Biological Physics); physics.comp-ph (Computational Physics).
Selected 14 of 20 available items for this weekly brief.