Clay weekly context brief for the Physics category (ISO week 2026-W45).

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. Why does the detonation cell size $\lambda$ provide quasi-universal scaling of detonation dynamics?
   Source: physics.flu-dyn (Fluid Dynamics)
   Link: https://arxiv.org/abs/2610.38033
   The detonation cell size $\lambda$ is known to provide a characteristic scale for the detonation dynamics and serves as scaling parameter for numerous correlations with other dynamic parameters of detonations, e.g., the critical detonation tube diameter for transmission to open space of $d\simeq13\lambda$ across many reactive systems.
2. Spectral properties of mesoscale fluctuations in interplanetary coronal mass ejections
   Source: physics.space-ph (Space Physics)
   Link: https://arxiv.org/abs/2607.23742
   Magnetic fields in interplanetary coronal mass ejections (ICMEs) often display a flux rope structure at large scales and a turbulent cascade of fluctuations at smaller scales.
3. Large scientific teams are more, not less, disruptive
   Source: physics.soc-ph (Physics and Society)
   Link: https://arxiv.org/abs/2610.07329
   Modern science has moved decisively toward larger and more collaborative research teams.
4. Bodyseismography (BSG): Theoretical Foundation and Numerical Modeling
   Source: physics.med-ph (Medical Physics)
   Link: https://arxiv.org/abs/2610.35844
   Bodyseismography (BSG) records cardiovascular vibrations transmitted through the body and a supporting bed, enabling contactless assessment of cardiac mechanics.
5. Thermo-viscous feedback in heat transport through fracture-matrix systems with finite thermal capacity
   Source: physics.geo-ph (Geophysics)
   Link: https://arxiv.org/abs/2610.22531
   In geothermal systems, injected fluid flows along preferential fracture pathways and exchanges heat with matrix blocks.
6. Thermal fluctuations and electronic readout using a moving-coil movement
   Source: physics.ed-ph (Physics Education)
   Link: https://arxiv.org/abs/2610.08721
   The moving-coil meter provides a simple context in which to model deterministic electromechanical dynamics, thermal fluctuations, and electronic readout.
7. MUTACO: Simulator-Efficient Response Matching in Stochastic Nonlinear Systems via Compatibility-Aware Sequential Design
   Source: physics.comp-ph (Computational Physics)
   Link: https://arxiv.org/abs/2610.04619
   Many physical inverse problems are mediated by expensive stochastic simulators for which response gradients, adjoint sensitivities, or a differentiable simulator interface are unavailable.
8. Maximum-Temperature Theorem for a Nanothermometer
   Source: physics.class-ph (Classical Physics)
   Link: https://arxiv.org/abs/2610.24340
   We derive a sharp upper bound on the quasi-steady temperature rise of a sensor of arbitrary shape and known thermometric volume $V_\mathrm{s}$, placed anywhere inside a region enclosed by an isothermal reference surface.
9. Generative discovery of chemical reaction networks
   Source: physics.chem-ph (Chemical Physics)
   Link: https://arxiv.org/abs/2610.38236
   Chemical kinetics determines molecular stability, reaction selectivity and the evolution of reacting mixtures, but discovering the underlying reaction networks remains challenging.
10. The limits of higher-order interactions in shaping chimera states
   Source: physics.bio-ph (Biological Physics)
   Link: https://arxiv.org/abs/2610.31997
   In neuronal networks, chimera states, characterized by the coexistence of coherent and incoherent populations, have attracted considerable attention in the study of collective brain dynamics, due to its potential implications for neurological disorders such as epilepsy.
11. Decay versus dephasing in Rydberg analog optimization: the exchange rate depends on the readout
   Source: physics.atom-ph (Atomic Physics)
   Link: https://arxiv.org/abs/2608.29858
   Numerical studies of noisy Rydberg-atom optimization compress decoherence into a single rate, treating spontaneous decay ($\Gamma$) and dephasing ($\gamma$) as equivalent.
12. Time-Reversal-Invariant Altermagnetic Acoustic Crystals
   Source: physics.app-ph (Applied Physics)
   Link: https://arxiv.org/abs/2608.08827
   Altermagnets have emerged as a new class of magnetic materials that combine spin-split electronic bands with zero net magnetization.
13. Noise Steering: Exploiting Wake Steering and Acoustic Directivity for Noise-Constrained Wind Farm Control via Reinforcement Learning
   Source: physics.ao-ph (Atmospheric and Oceanic Physics)
   Link: https://arxiv.org/abs/2610.36888
   Existing noise mitigation strategies for wind farms usually consist in reducing turbines power output, without accounting for the wake interactions between them and the noise emission directivity.
14. Brilliance: toward autonomous computational research in particle accelerator physics
   Source: physics.acc-ph (Accelerator Physics)
   Link: https://arxiv.org/abs/2610.15615
   Computational research in physics requires continuous interplay between simulation and scientific interpretation, demanding substantial specialist effort.
15. What We Could Lose by Trying to Make Mars Habitable
   Source: physics.pop-ph (Popular Physics)
   Link: https://arxiv.org/abs/2610.35937
   The recent push to develop Mars terraforming technologies, increasingly driven by unaccountable private wealth, risks the irreversible destruction of planetary records we have barely begun to read.
16. Relativistic Chiral MHD with application to the early Universe
   Source: physics.plasm-ph (Plasma Physics)
   Link: https://arxiv.org/abs/2607.22816
   We present a systematic derivation of the equations of relativistic chiral magnetohydrodynamics (MHD) for a plasma of charged fermions in an expanding universe.
17. Topological Leading Angular Structure around Bound States in the Continuum
   Source: physics.optics (Optics)
   Link: https://arxiv.org/abs/2609.29074
   We show that the angular structure of the leading radiation around a bound state in the continuum (BIC) directly encodes its topology.
18. Descartes Curvature Geometry, Compact-Cycle Amplitudes, and the GST Cabibbo Seed
   Source: physics.gen-ph (General Physics)
   Link: https://arxiv.org/abs/2610.36960
   Several apparently distinct formulations of the charged-lepton mass relation $p_2/e_1^2 = 2/3$ share a common algebraic object: the ratio of flavor-breaking to flavor-symmetric amplitude components on an internal family space.
19. Task-Directed Spectral Design for Local Quantum Tomography
   Source: quant-ph (Quantum Physics)
   Link: https://arxiv.org/abs/2610.33723
   Many tomography tasks require only a low-dimensional function of the state.
20. Inertial flows over the Koch leaf
   Source: physics.flu-dyn (Fluid Dynamics)
   Link: https://arxiv.org/abs/2610.38493
   The main hypothesis of this paper is that inertial effects known from porous-media flow can be observed even in a simple system consisting of a single channel.
21. Cascade models of anisotropic turbulence in magnetized plasma of solar wind
   Source: physics.space-ph (Space Physics)
   Link: https://arxiv.org/abs/2609.10418
   The solar wind plasma is modeled as a collection of discrete domains, each possessing local rotational symmetry about its domain-mean magnetic field.
22. Steering the dynamics by controlling the temporal interaction network
   Source: physics.soc-ph (Physics and Society)
   Link: https://arxiv.org/abs/2607.04998
   Many real-world coupled dynamical systems have their interaction structure and strength that evolve or adapt over time.
23. Just-in-time volumetric imaging: Learning 2D-3D thoracic motion models during image-guided interventions
   Source: physics.med-ph (Medical Physics)
   Link: https://arxiv.org/abs/2610.34792
   Despite two decades of innovation, cutting-edge bronchoscopic techniques still fail to yield clear diagnostic decisions in 30% of cases and miss malignancies in 20% of cases.
24. Excursion-set structure factor of the auroral electric field
   Source: physics.geo-ph (Geophysics)
   Link: https://arxiv.org/abs/2606.26854
   A spacecraft crossing the aurora cannot tell whether structures in the field-aligned currents are short-lived or merely small.
25. Damping by design in a bilateral electromechanical transducer
   Source: physics.ed-ph (Physics Education)
   Link: https://arxiv.org/abs/2610.06314
   In a bilateral electromechanical transducer, energy exchange across the electromechanical interface allows the electrical termination to modify the mechanical response through electromagnetic feedback.
26. Efficient Large-Scale STEM-EELS Simulations With Torched-TACAW
   Source: physics.comp-ph (Computational Physics)
   Link: https://arxiv.org/abs/2607.02236
   The time auto-correlation of auxiliary wave functions (TACAW) method enables efficient simulations of ultra-low-loss electron energy loss spectra (EELS) arising from vibrational and magnon excitations.
27. Ghosts in the nanomachine: dynamical slowing-down in the phase-space of nanomechanical strings
   Source: physics.class-ph (Classical Physics)
   Link: https://arxiv.org/abs/2610.39968
   The linear behavior of micro- and nanomechanical devices has been the topic of intense study over the past years.
28. Quantum advantage by designing beneficial dissipation from lossless dynamics
   Source: physics.chem-ph (Chemical Physics)
   Link: https://arxiv.org/abs/2610.38183
   Passive loss removes probability from a system and therefore seems unable to improve an unconditional target.
29. Emergent topological structure in spontaneous brain-organoid activity
   Source: physics.bio-ph (Biological Physics)
   Link: https://arxiv.org/abs/2607.16517
   Neural activity is widely held to organize on low-dimensional structure embedded in a high-dimensional state space.
30. Long-Baseline Phase-Coherent Microwave Reception Using Rydberg Atoms
   Source: physics.atom-ph (Atomic Physics)
   Link: https://arxiv.org/abs/2610.33552
   A long baseline phase-coherent microwave receiver is demonstrated using a remotely interrogated cesium Rydberg atom sensor over an 8 m free-space optical link.

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.comp-ph (Computational Physics); physics.ed-ph (Physics Education); physics.flu-dyn (Fluid Dynamics); physics.gen-ph (General Physics); physics.geo-ph (Geophysics); physics.med-ph (Medical Physics); physics.optics (Optics); physics.plasm-ph (Plasma Physics); physics.pop-ph (Popular Physics); physics.soc-ph (Physics and Society); physics.space-ph (Space Physics); quant-ph (Quantum Physics).
Selected 30 of 344 available items for this weekly brief.