AI Models Reproduce Key Signals in MAST-U Simulations
An arXiv preprint presents a computational proof of principle for machine-learning surrogates based on MAST-U discharge 49108.
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Gamma-ray ridge near Galactic Center shows a spectral bend
Preprint: H.E.S.S. data favor a curved spectrum and a cosmic-ray injection site close to Sgr A*, but do not identify a unique accelerator.
Mixed Hodge Modules Link Cyclic Covers to Singularity Tests
Preprint: a mathematical framework connects cyclic-cover formulas with singularity criteria and vanishing results.
Quantum ‘magic’ can be shared without entanglement, study says
Preprint: Theoretical results and processor tests suggest separable quantum correlations can hide and release a computational resource.
Preprint reports faster fits for large particle-physics datasets
Synthetic tests found much faster repeated calculations and successful completion at the largest benchmark size, but the study used no real experimental dataset.
Preprint finds quantum trade-offs as two model wells merge
Calculations found position and momentum measures moving in opposite directions while their combined entropy stayed nearly constant across the modeled transition.
Permutation Channels Retain a Two-Copy Entropy Gap
Preprint: A mathematical construction uses permutation-generated quantum channels, but its certified finite-dimensional example is not practical to run.
Object-centric model tops reconstruction but trails predicted-camera test
A preprint evaluates 4DGS-WAM on KITTI-MOT, with the model leading given-camera video tests but trailing Envision4D when the future camera is predicted.
Multilevel SGD is 18 times faster in one PDE test
Preprint: MLSGD reached comparable accuracy 18 times faster than batched SGD in one reported comparison, while larger runs showed diminishing parallel efficiency.
Machine Learning Helps Find Rare Hot Subdwarfs and White Dwarfs
This preprint reviews machine-learning tools for finding and studying hot subdwarfs and white dwarfs, while stressing that follow-up remains essential.
Quantum model predicts sharply fewer bit flips in a new qubit design
This Preprint on arXiv models a 0–n Fock qubit with exponentially suppressed bit-flip errors as its level number rises.
Study finds a roughly 70-year pattern in Earth's rotation
Preprint analysis finds the signal consistent with a core-related contribution but says the model does not indicate an imminent negative leap second.
Lesion-guided AI posts high accuracy in ovarian ultrasound study
Preprint: A comparison of two public datasets found strong held-out results with less detailed lesion marking than contour-based methods.
GPU Backend Records 11% Speedup in Random-Material Test
Preprint: A larger numerical benchmark showed an 11% GPU speedup, while CPU configurations with more resources were associated with lower gradient-estimator error.
Exact robust-MDP method scales better on two benchmarks
Preprint: The proposed method matched a stochastic-game baseline's values on all tested cases, but the baseline was faster on Frozen Lake.
Game theory study maps when improvement dynamics reach equilibrium
Preprint links weak acyclicity to weak potentials and identifies conditions for finite games to converge through selected moves.
Simulations link black-hole winds to stalled orbits and spin misalignment
Preprint: An idealized simulation suite reported lower accretion, stalled orbital expansion and slower spin alignment in runs with feedback winds.
AI model reports stronger Alzheimer’s MRI results with sparse, unpaired data
Preprint: A two-stage system used tabular scores, PET and separate handwriting data during training, then made predictions from MRI alone.
Simulation study reports less fit bias after mass-resolution weighting
A preprint reports improved truth agreement and smaller fit deviations in two fully simulated decay tests.
Dual-class switches tied to early valuation gains and patent citations
Preprint analysis of US public firms finds valuation gains after recapitalization, while patent-citation estimates grow over time and unification shows the reverse pattern.