Two NbTiN films show more uniform vortices at 7 mTorr
Preprint: In a two-film comparison, the 7 mTorr film showed stronger magnetic and current responses and more uniform, locally ordered vortices.
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Fixed OBABO tuning cannot ensure uniform ballistic cold-start total-variation mixing
Preprint: Analysis finds no uniform ballistic cold-start total-variation guarantee for OBABO parameters fixed from curvature bounds and dimension across smooth strongly convex targets.
New framework maps which Maxwell modes actuators can reach
Preprint: The study separates local fields from global circulation and flux, then tests which modes its actuators can reach.
Theory predicts electric test for altermagnetic order
Preprint says a resonance threshold could separate altermagnets from higher-symmetry antiferromagnets, but the signal remains untested.
Preprint prototype rejects Treasury-token minting after assets are encumbered
The Solidity framework matched a simple reserve check in a valid scenario but rejected issuance when encumbered assets were excluded.
Computer search identifies 344 rare-earth magnet candidates
Preprint: A computational workflow produced 344 candidates, with five on the calculated stability hull, while experimental stability was not assessed.
Study points to two superconducting channels in SrSn3 films
An arXiv preprint reports different energy gaps, critical fields and vortex-core spectra linked to surface and bulk channels.
Disabling a Few AI Experts Was Linked to Much Longer Outputs
A preprint reports extreme output-length increases in open-source mixture-of-experts models, but does not demonstrate a live hardware attack.
Analysis Gives Polytope Walks a Dimension-Square Mixing Bound
Preprint authors extend the framework to spectrahedra, while an arrow example highlights why leverage scaling may matter for acceptance.
Varied street images linked to more accurate aerial localization
Preprint: An open benchmark across 41 European cities reported better in-the-wild results when Mapillary images were added with reduced training weight.
AI Handoff Router Picks Graphs or Prose by Task
Preprint: A benchmark study reports mixed results for graph and natural-language handoffs, with routing matching or exceeding prose-only scores.
Shared AI Model Improves 10-Second Traffic Forecasts at Five Sites
An arXiv preprint reports lower 10-second trajectory errors for pooled training across five Florida intersections, but short-range and site-specific results were mixed.
Elastic-Net ERGM Had the Lowest Error in One Simulation
A preprint reports that one Bayesian network-model implementation had the lowest error and false-positive rates in a single simulation, but lower sensitivity at its chosen reporting cutoff.
Robot adjusts assistance when possible motions diverge
Preprint: In a laboratory transport test, the proposed controller's average success rate was 0.95, compared with 0.83 for a fixed-stiffness version and 0.69 for a deterministic comparator.
Swarm-control model reports lower steering costs in simulations
Preprint: A mathematical framework steered modeled swarms to target distributions, but its controls were not proven globally optimal.
A Math Theorem Finds Certain mKdV Patterns Recur in Space and Time
Preprint: Under strict spectral conditions, a defocusing mKdV solution remains almost periodic in space and time, with a separate corollary for some analytic quasiperiodic data.
Training-free speech check flags word swaps in a limited test
An arXiv preprint reports lower error rates than three passive detectors, but the evaluation covered a narrow set of same-speaker attacks.
Correlation-matrix test may favor widespread shifts over factor changes
Preprint: A theoretical study derives an asymptotic reference law for comparing estimated correlation matrices and examines how different change patterns affect detection in modeled scenarios.
AI agents fell short on deep, large-scale biology tasks
Preprint: Across 20 studies, the best model averaged a 0.48 task score, while deeper analyses and data sets over 100 GB scored lower.
When Cache Misses Can Wait, the Farthest Page May Be Wrong
Preprint: A theoretical analysis gives a formal counterexample to physical farthest-next-use and reports exact restricted cases plus unit-cost and weighted guarantees.