Clay weekly context brief for the Physics category (ISO week 2026-W35). 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. Electron energy gain in a dielectric laser accelerator as a function of the base angle of a triangular grating structure Source: physics.acc-ph (Accelerator Physics) Link: https://arxiv.org/abs/2608.20027 Dielectric laser accelerators (DLAs) represent a compact and cost-effective alternative to conventional RF accelerators. 2. Ultrafast optical coherence elastography for volumetric and dynamic in vivo imaging Source: physics.app-ph (Applied Physics) Link: https://arxiv.org/abs/2608.19566 Imaging the mechanical properties of biological tissues in vivo with high spatial and temporal resolution is essential for understanding physiological function and disease progression. 3. Growth phases of an active tissue: determinate, indeterminate, and proportionate Source: physics.bio-ph (Biological Physics) Link: https://arxiv.org/abs/2608.20091 Growth may cease at a target size or continue throughout life: the determinate and indeterminate phenotypes. 4. A Comparative Study of Coherent and Action-Detected 2D Electronic Spectroscopies of a Multichromophore Photosynthetic System Source: physics.chem-ph (Chemical Physics) Link: https://arxiv.org/abs/2608.19721 Coherent two-dimensional electronic spectroscopy (C-2DES) is a powerful tool for resolving excitonic structure and dynamics in light-harvesting complexes with dense energy-level manifolds. 5. Scalar-Longitudinal Radiation in Extended Electrodynamics with Multipole Theory and a Compensated Source Model Source: physics.class-ph (Classical Physics) Link: https://arxiv.org/abs/2608.19405 Extended electrodynamics (EED) leaves the Lorenz gauge condition unimposed and treats the scalar combination $C=\nabla\cdot\mathbf{A}+c^{-2}\partial\Phi/\partial t$ as a dynamical field. 6. Navigating Through Turbulence: Charting Early Careers in Weather and Climate Science Source: physics.ed-ph (Physics Education) Link: https://arxiv.org/abs/2510.21123 The field of weather and climate science is at a pivotal moment, defined by simultaneous forces of institutional disruption and unprecedented technological advancements. 7. 3-D numerical modelling of the feedback between deformation and thermal structure during subduction initiation for the French Lesser Antilles Source: physics.geo-ph (Geophysics) Link: https://arxiv.org/abs/2608.19990 We used 3-D thermomechanical modelling to investigate conditions during subduction-zone initiation and early thermal development with focus on the Lesser Antilles. 8. A Reference System for Open Source Portable Low-Field MRI Source: physics.med-ph (Medical Physics) Link: https://arxiv.org/abs/2608.19062 Despite its renewed attention, the pathway to point-of-care portable low-field MRI systems remains challenging, limiting adoption across research groups. 9. Determining neutral fueling response to RMPs in MAST using a multi-reservoir particle balance model and EMC3 EIRENE Source: physics.plasm-ph (Plasma Physics) Link: https://arxiv.org/abs/2608.19446 The application of certain configurations of resonant magnetic perturbations (RMPs) has been shown to cause a plasma pump-out in both L- and H-mode discharges at MAST. 10. Climate change and human mobility will shape dengue emergence risk in Europe Source: physics.soc-ph (Physics and Society) Link: https://arxiv.org/abs/2608.20079 The risk of local arbovirus outbreaks in Europe is expected to increase due to climate change, as suggested by the multiplication of arbovirus outbreaks in the last decades. 11. Phase information beyond entanglement sudden death in coherence-to-entanglement conversion under post-gate noise Source: quant-ph (Quantum Physics) Link: https://arxiv.org/abs/2608.19247 An ideal CNOT maps the phase of a coherent qubit onto the coherence between $\ket{00}$ and $\ket{11}$ of a two-qubit state, producing an output that carries both entanglement and estimable phase information. 12. Localizing polymers promotes the centre-mode elastic instability Source: physics.flu-dyn (Fluid Dynamics) Link: https://arxiv.org/abs/2608.04004 The centre-mode elastic instability, prevalent in rectilinear flows of dilute polymer solutions, allows dynamic states to emerge even in the absence of inertia. 13. The impact of feature engineering and an optimisation framework for ocean colour machine learning Source: physics.ao-ph (Atmospheric and Oceanic Physics) Link: https://arxiv.org/abs/2608.19899 Machine learning (ML) is widely used for the development of ocean colour algorithms, but most studies focus on model parameter training and hyperparameter tuning. 14. The Fundaments of Unity: ${\mathcal O}(1)$ Couplings in Quantum Field Theories Source: physics.data-an (Data Analysis, Statistics and Probability) Link: https://arxiv.org/abs/2606.12393 We critically examine the expectation that in a fundamental quantum field theory, dimensionless couplings in the Lagrangian density should all be of order unity. 15. UPLOAD-ANYON: Progress Towards an Optimised Twisted Anyon Cavity with High-Sensitivity AM-Noise Detection for an Ultralight Axion Dark Matter Search Source: physics.ins-det (Instrumentation and Detectors) Link: https://arxiv.org/abs/2608.19225 We propose a superconducting single-mode microwave haloscope based on helical cavity resonators for the detection of ultralight dark matter axions over the mass range $10^{-18}$ to $10^{-13}\,\mathrm{eV}$. 16. Protected Reconstruction from Codazzi Defects: Equianharmonic Quantization and a Minimal Standard-Model Carrier Source: physics.gen-ph (General Physics) Link: https://arxiv.org/abs/2606.12693 Protected reconstruction is formulated for a codimension-three timelike Codazzi defect in a four-dimensional Lorentzian branch. 17. Hidden Variables in Quantum Mechanics: A Journey Into de Broglie-Bohm Pilot-Wave Theory Source: physics.hist-ph (History and Philosophy of Physics) Link: https://arxiv.org/abs/2608.18829 This work provides an introduction to the most influential hidden-variable interpretation of the quantum formalism, i.e., the de Broglie-Bohm pilot-wave theory. 18. A Comprehensive Review of Large Language Models for Nanophotonics: From Surrogate Modeling to Autonomous Design Source: physics.optics (Optics) Link: https://arxiv.org/abs/2608.18279 Metasurfaces have revolutionized the development of photonic devices by enabling unprecedented precision in light manipulation. 19. Optically Writable Atomic Vapor Memory as a Substrate for Optical Reservoir Computing Source: physics.atom-ph (Atomic Physics) Link: https://arxiv.org/abs/2608.17807 We present an optical random access memory (ORAM) based on warm cesium (Cs) atomic vapor and demonstrate its operation as the physical substrate of a reservoir computer. 20. RF Powering for Accelerators Source: physics.acc-ph (Accelerator Physics) Link: https://arxiv.org/abs/2606.10643 This paper reviews the main types of radio-frequency powering systems which may be used for accelerators. 21. Experimental Realization of Topological Surface Acoustic Wave Resonances under Surface Liquid Loading for Micro-volume sample Sensings Source: physics.app-ph (Applied Physics) Link: https://arxiv.org/abs/2608.19772 Surface acoustic wave (SAW) sensors, owing to their high operating frequencies, compatibility with planar micro-fabrication, and exceptional sensitivity to surface perturbations, are widely used in lab -on-a-chip and biomedical diagnostic applications. 22. Shape-Independent Fluidity in Epithelial Cell Monolayers Source: physics.bio-ph (Biological Physics) Link: https://arxiv.org/abs/2603.05548 Tissue fluidity regulates biological processes such as embryonic development, wound healing, and cancer metastasis. 23. Nuclear-Electronic Orbital Subsystem Density Functional Theory Source: physics.chem-ph (Chemical Physics) Link: https://arxiv.org/abs/2608.19834 We present a new computational approach based on Nuclear-Electronic Orbital and Subsystem Density Functional Theory. 24. Spheroid rolling up on diverging inclines Source: physics.class-ph (Classical Physics) Link: https://arxiv.org/abs/2608.19541 Objects rolling upward on diverging inclined rails exhibit a counterintuitive behavior that has intrigued physicists and students alike. 25. 1d-qt-ideal-solver: 1D Idealized Quantum Tunneling Solver with Absorbing Boundaries Source: physics.ed-ph (Physics Education) Link: https://arxiv.org/abs/2512.22634 We present 1d-qt-ideal-solver, an open-source Python library for simulating one-dimensional quantum tunneling dynamics under idealized coherent conditions. 26. From complex-step differentiation to a general reconstruction framework Source: physics.geo-ph (Geophysics) Link: https://arxiv.org/abs/2608.17924 The complex-step method is traditionally derived from the Taylor expansion of an analytic function and is widely used as a numerical technique for derivative approximation. 27. Plug-and-play endoscopic OCT enabled by a fully fiber-integrated 3D-printed probe Source: physics.med-ph (Medical Physics) Link: https://arxiv.org/abs/2608.13772 Endoscopic optical coherence tomography (OCT) brings depth-resolved imaging into small lumens and confined spaces, but each probe must be assembled from spliced, cleaved, and aligned components, and each exchange requires renewed matching of the reference arm. 28. Characterizing the temporal evolution of Biermann-battery-driven magnetic reconnection in laser-ablated plasmas Source: physics.plasm-ph (Plasma Physics) Link: https://arxiv.org/abs/2608.19591 This paper presents an experimental investigation of magnetic reconnection between two laser-produced expanding plasmas, focusing on the quantitative evaluation of the reconnection rate and energy conversion under varying initial conditions. 29. Growth Without Us: Machine Consumers, Corporate Circularity, and the Decoupling of GDP from Humanity after AGI Source: physics.soc-ph (Physics and Society) Link: https://arxiv.org/abs/2608.20231 The standard objection to full automation is demand-side: if humans earn nothing, who buys the output? 30. Demons on a Budget: Adaptive Measurement Placement at the Entanglement Phase Transition Source: quant-ph (Quantum Physics) Link: https://arxiv.org/abs/2608.19248 Monitored quantum circuits exhibit a measurement-induced phase transition between volume-law and area-law entanglement as a function of the measurement rate $p$. 31. On the limits of Taylor hypothesis in forest clearcut flow: Effects of random sweeping and an elliptic model analysis Source: physics.flu-dyn (Fluid Dynamics) Link: https://arxiv.org/abs/2507.12069 Taylor's hypothesis (TH) converts temporal observations to spatial information of the flow while carrying out measurements on a micrometeorological tower. Sources in this brief: physics.acc-ph (Accelerator Physics); physics.ao-ph (Atmospheric and Oceanic Physics); physics.app-ph (Applied Physics); physics.atom-ph (Atomic Physics); physics.bio-ph (Biological Physics); physics.chem-ph (Chemical Physics); physics.class-ph (Classical Physics); physics.data-an (Data Analysis, Statistics and Probability); physics.ed-ph (Physics Education); physics.flu-dyn (Fluid Dynamics); physics.gen-ph (General Physics); physics.geo-ph (Geophysics); physics.hist-ph (History and Philosophy of Physics); physics.ins-det (Instrumentation and Detectors); physics.med-ph (Medical Physics); physics.optics (Optics); physics.plasm-ph (Plasma Physics); physics.soc-ph (Physics and Society); quant-ph (Quantum Physics). Selected 31 of 384 available items for this weekly brief.