Week of September 7, 2026
2026-W37
Week 2026-W37: 20 curated papers with 20 free plain-English explainers.
Legibility is Not Interpretability: Comparing Judged and Actual Importance in Chain-Of-Thought Reasoning
Readable chain-of-thought traces look like a window into why a model answered as it did — but this paper shows that even strong LLM judges cannot reliably tell…
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Quantum thermalization achieves optimal approximate quantum error correction
Generic thermalizing many-body dynamics, treated as an encoding, appear to hit the same optimal approximate error-correction limits as Haar-random codes — incl…
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Puffin-World: Scaling a Unified Multimodal Model with Native 3D World States
Puffin-World is a single multimodal model that jointly handles physics, geometry, and appearance — plus camera motion — to generate and reconstruct 3D worlds w…
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GIFT: Guided Intermediate Feature Training via Action-Oriented Structural Supervision for Robotic Manipulation
GIFT trains a robot policy’s intermediate features to keep geometry, affordances, and goals — the structure that actually matters for control — and shows consi…
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TokenMatch: 3D Mesh Correspondence Transformer with Curvature-Guided Tokenisation
TokenMatch is a feed-forward transformer that matches 3D meshes — including hard partial, non-isometric cases — by tokenizing surfaces with curvature-guided pa…
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Parameterised graph theory for tensor networks: entanglement rerouting, structural simplification, and agnostic tomography
Graph parameters such as cutwidth and tree-cutwidth are shown to control how expensive it is to rewrite a tensor-network state as an MPS or tree network — and…
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Subcellularly Resolved Single-Cell Embedding Learning with Transcriptomic data, Protein Structure and Localization Information
A multimodal cell-embedding model mixes RNA profiles with protein sequence and structure, using cross-attention inside subcellular compartments instead of trea…
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Exciton multipolarity controls coherent and squeezed phonons in van der Waals heterostructures
In MoSe2/WSe2 multilayers, dipolar excitons drive coherent interlayer breathing phonons while quadrupolar excitons drive squeezed ones — and a vertical electri…
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MulDP: Multimodal Diffusion Policy for Autonomous Quadruped Parkour Navigation across Complex Terrains
MulDP is a diffusion policy that turns vision, proprioception, and goals into anticipatory velocity commands so a quadruped can parkour-navigate without a huma…
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Ion-Engineered Insulator-to-Semiconductor Transition in Natural 2D Biotite
A controlled NaOH treatment turns exfoliated biotite nanosheets from an insulator into a tunable 2D semiconductor by adding sodium, defects, and local reconstr…
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Characterizing Large Scale Quantum Systems with Error Per Circuit Layer
Error Per Circuit Layer (EPCL) estimates how polarizing each layer of a quantum circuit is by overlapping two registers that ran the same random circuits — no…
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A Low-Cost, Open Platform for End-to-End Autonomous Driving on a Miniature Ackermann Vehicle
An open miniature-car testbed — physical Ackermann vehicle, printed urban track, tools, and a Webots twin — lets researchers take end-to-end driving from simul…
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PopPert: Population-level Joint-Distribution Modeling for Single-Cell Perturbation Prediction
PopPert predicts how a whole population of cells changes after a genetic or chemical perturbation by learning joint gene-expression distributions — without pre…
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Improving precipitation forecasts in an AI weather model using observational data
Fine-tuning a graph-transformer weather model on IMERG precipitation — not just ERA5 — improves medium-range rain scores by up to 19% and extreme-rain skill by…
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Robust PAC Learning of Concurrent Stochastic Games
A PAC algorithm for general-sum concurrent stochastic games with uncertain transitions either returns a near-optimal approximate Nash equilibrium or certifies…
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Sparse concept attribution for histomorphological hypothesis generation from whole-slide classifiers
SCOPE explains whole-slide pathology classifiers by sparsely attributing them onto a histomorphological concept bank — and a new benchmark shows sparse attribu…
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Detection of hydrocarbons in Titan using high-resolution cross-correlation spectroscopy
Using Titan as a testbed, the authors build high-resolution cross-correlation templates from molecular cross-sections instead of complete line lists — recoveri…
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Morphology of Radio Sources in Representation Space
A classifier ensemble plus representation-space clustering finds six extra radio morphologies in LoTSS-DR3 — including rare winged and FR-ambiguous sources — o…
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Ruelle--Pollicott Theory for Metastable Systems: A Unified Framework for Tipping Transitions
A Ruelle–Pollicott spectral theory of stochastic metastable systems shows that classic “critical slowing down” warnings are not universal: large responses need…
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Computing high-order mixed derivatives in physics-informed neural networks using multi-index Bell polynomials
A tabulated Faà di Bruno / Bell-polynomial recursion computes the mixed derivatives PINNs need — and their parameter gradients — without nested automatic diffe…
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