Tootfinder

📈 Global Energy Demand Outpaces Renewable Expansion
https://oilprice.com/Alternative-Energy/Renewable-Energy/Global-Energy-Demand-Outpaces-Renewable-Expansion.html

Global Energy Demand Outpaces Renewable Expansion
Despite record growth in renewable energy, particularly solar, global energy demand continues to outpace its expansion, leading to continued reliance on fossil fuels and rising carbon emissions.

The FBI and agencies in the UK, Canada, and others warn that a Chinese hacking campaign targeting US telecoms has expanded to 80 countries and 200 US companies (Joseph Menn/Washington Post)

FBI warns Chinese hacking campaign has expanded, reaching 80 countries
An FBI official told The Washington Post that Chinese hackers won deep access to major communication carriers in the U.S. and elsewhere.

Asymptotic enumeration of graph factors by cumulant expansion
Mikhail Isaev, Brendan D. McKay
https://arxiv.org/abs/2508.18731 https://arxiv.org/pdf/2508.1…

Asymptotic enumeration of graph factors by cumulant expansion
Let $G$ be a dense graph with good expansion properties and not too close to being bipartite. Let $\boldsymbol d$ be a graphical degree sequence. Under very weak conditions, we find the number of subgraphs of $G$ with degree sequence $\boldsymbol d$ to arbitrary precision. The average degree can be any power of $n$ and the variation in degrees can be very large. The method uses an explicit bound on the tail of the cumulant generating function found by the first author. As a first application, w…

Potential series expansion method applied in Analytical Modeling of Gravitational field of Irregularly Shaped Celestial Bodies
Marcelo Lisboa Mota, Safwan Aljbaae, Antonio F. B. A. Prado
https://arxiv.org/abs/2507.19433

Potential series expansion method applied in Analytical Modeling of Gravitational field of Irregularly Shaped Celestial Bodies
This study aims to establish an analytical model that reproduces the gravitational field around non-spherical bodies with constant density. Due to the non-spherical geometry of such bodies, their gravitational potential is disturbed relative to a central field. By considering the body as a polyhedron and decomposing it into tetrahedral elements, we use the Series Potential Expansion Method (PSEM) to approximate the total potential by summing the potentials of each tetrahedron. While this model …

Resurgence for large $c$ expansion in Coulomb gas formalism
Yong Li, Hongfei Shu
https://arxiv.org/abs/2508.19059 https://arxiv.org/pdf/2508.19059

Resurgence for large $c$ expansion in Coulomb gas formalism
We develop a resurgence analysis for large central charge (large $C$) expansions in two-dimensional CFTs using the Coulomb gas formalism. Through the exact Borel-Laplace representations of the conformal blocks $I_1(C,z)$ and $I_2(C,z)$ associated with the four-point correlation function $ \langle ϕ_{2,1}(0)ϕ_{2,1}(z,\bar{z})ϕ_{2,1}(1)ϕ_{2,1}(\infty)\rangle$, we demonstrate that $I_1(C,z)$ participates in the Stokes phenomenon of $I_2(C,z)$ (and vice versa), and establish that monodromy in $…

Trump calls for expansion of death penalty in D.C. (Washington Post)
https://www.washingtonpost.com/politics/2025/08/26/trump-death-penalty-washington-dc/
http://www.memeorandum.com/250826/p132#a250826p132

Reuters launches its Arabic website, the company's third dedicated language platform after English and Japanese, and says it will provide 100 stories daily (Reuters)
https://reutersagency.com/media-centre/reuters-launches-a…

Reuters launches Arabic website as key part of its Middle East expansion
Reuters launches Arabic website as key part of its Middle East expansion

Uniaxial negative thermal expansion in a weak-itinerant-ferromagnetic phase of CoZr$_{2}$H$_{3.49}$
Yuto Watanabe, Kota Suzuki, Takayoshi Katase, Akira Miura, Aichi Yamashita, Yoshikazu Mizuguchi
https://arxiv.org/abs/2509.20765

Uniaxial negative thermal expansion in a weak-itinerant-ferromagnetic phase of CoZr$_{2}$H$_{3.49}$
We discovered unique uniaxial negative thermal expansion (NTE) behavior for a weak-itinerant-ferromagnetic phase of CoZr$_{2}$H$_{3.49}$. CoZr$_{2}$ is known as a superconductor exhibiting uniaxial NTE along the $c$-axis, which is called anomalous thermal expansion (ATE). Additionally, CoZr$_{2}$ is also known as a well-absorbent of hydrogen, and hydrogen insertion raises weak-itinerant ferromagnetism instead of superconductivity. However, the influence of hydrogen insertion on ATE behavior in …

Interpolating Speaker Identities in Embedding Space for Data Expansion
Tianchi Liu, Ruijie Tao, Qiongqiong Wang, Yidi Jiang, Hardik B. Sailor, Ke Zhang, Jingru Lin, Haizhou Li
https://arxiv.org/abs/2508.19210

Interpolating Speaker Identities in Embedding Space for Data Expansion
The success of deep learning-based speaker verification systems is largely attributed to access to large-scale and diverse speaker identity data. However, collecting data from more identities is expensive, challenging, and often limited by privacy concerns. To address this limitation, we propose INSIDE (Interpolating Speaker Identities in Embedding Space), a novel data expansion method that synthesizes new speaker identities by interpolating between existing speaker embeddings. Specifically, we…

Exact electromagnetic multipole expansion using elementary current multipoles
Andriy Shevchenko, Sagar Sehrawat, Radoslaw Kolkowski
https://arxiv.org/abs/2508.16545 https://

Exact electromagnetic multipole expansion using elementary current multipoles
Multipole expansion plays an important role in the description of electromagnetic scatterers, allowing them to be accurately characterized by a small set of expansion coefficients. However, to describe electromagnetic excitations inside a scatterer, the current density in it should be decomposed into current multipoles. Such current expansion includes nonradiating current configurations that are absent in the classical field-based expansion. Unfortunately, the use of current multipoles has so f…

Frozen in Time: Parameter-Efficient Time Series Transformers via Reservoir-Induced Feature Expansion and Fixed Random Dynamics
Pradeep Singh, Mehak Sharma, Anupriya Dey, Balasubramanian Raman
https://arxiv.org/abs/2508.18130

Frozen in Time: Parameter-Efficient Time Series Transformers via Reservoir-Induced Feature Expansion and Fixed Random Dynamics
Transformers are the de-facto choice for sequence modelling, yet their quadratic self-attention and weak temporal bias can make long-range forecasting both expensive and brittle. We introduce FreezeTST, a lightweight hybrid that interleaves frozen random-feature (reservoir) blocks with standard trainable Transformer layers. The frozen blocks endow the network with rich nonlinear memory at no optimisation cost; the trainable layers learn to query this memory through self-attention. The design cu…

Model Context Protocols in Adaptive Transport Systems: A Survey
Gaurab Chhetri, Shriyank Somvanshi, Md Monzurul Islam, Shamyo Brotee, Mahmuda Sultana Mimi, Dipti Koirala, Biplov Pandey, Subasish Das
https://arxiv.org/abs/2508.19239

Model Context Protocols in Adaptive Transport Systems: A Survey
The rapid expansion of interconnected devices, autonomous systems, and AI applications has created severe fragmentation in adaptive transport systems, where diverse protocols and context sources remain isolated. This survey provides the first systematic investigation of the Model Context Protocol (MCP) as a unifying paradigm, highlighting its ability to bridge protocol-level adaptation with context-aware decision making. Analyzing established literature, we show that existing efforts have impli…

Constraining deviations from $\Lambda$CDM in the Hubble expansion rate
Yupeng Yang
https://arxiv.org/abs/2508.17848 https://arxiv.org/pdf/2508.17848…

Constraining deviations from $Λ$CDM in the Hubble expansion rate
(abridged)We explore a phenomenological model that quantifies the deviation of the Hubble expansion rate from the standard scenario. The specific form of this model is expressed as $H^{2}(z) = H^{2}_{\rm ΛCDM}(Ω_m, z)[1+δ(z)]$. We consider three forms of $δ(z)$: model I, $δ(z)=δ_c$; model II, $δ(z)=δ_{c}z/(1+z)$, and model III, $δ(z)=δ_{c}{\rm ln}(1+z)$. Here, $δ_c$ represents a constant value. To constrain the models, we utilize a comprehensive set of observational data, including D…

Q&A with Zocdoc CEO Oliver Kharraz on the patient scheduling platform's telehealth expansion, its policy of not providing medical advice through AI, and more (Nilay Patel/The Verge)
https://www.theverge.com/podcast/801767/zocdoc-ceo-oli…

Zocdoc CEO: ‘Dr. Google is going to be replaced by Dr. AI’
Zocdoc CEO Oliver Kharraz joins Decoder to discuss where AI really belongs in healthcare.

Weitere Expansion: Lyft nimmt Kanada stärker in den Blick
Lyft baut seine Präsenz außerhalb der Vereinigten Staaten weiter aus. Der Fahrdienstvermittler eröffnet ein Technologiezentrum im kanadischen Toronto.
http…

Addressing Weak Authentication like RFID, NFC in EVs and EVCs using AI-powered Adaptive Authentication
Onyinye Okoye
https://arxiv.org/abs/2508.19465 https://

Addressing Weak Authentication like RFID, NFC in EVs and EVCs using AI-powered Adaptive Authentication
The rapid expansion of the Electric Vehicles (EVs) and Electric Vehicle Charging Systems (EVCs) has introduced new cybersecurity challenges, specifically in authentication protocols that protect vehicles, users, and energy infrastructure. Although widely adopted for convenience, traditional authentication mechanisms like Radio Frequency Identification (RFID) and Near Field Communication (NFC) rely on static identifiers and weak encryption, making them highly vulnerable to attack vectors such as…

Warm Inflation with the Standard Model: #cosmology

Quantum Markovian master equation in the high-temperature limit
Ricardo C. Zamar, J. Agust\'in Taboada
https://arxiv.org/abs/2508.18385 https://arxiv.o…

Quantum Markovian master equation in the high-temperature limit
We present a critical derivation of the high-temperature quantum Markovian master equation (HTME), examining its foundational assumptions, their quantum-mechanical implications, and its range of validity. Starting from the Born-Markov master equation, and combining the spin Hamiltonian eigenoperator formalism with a linear expansion in statistical coefficients, as the only assumption, we obtain a quantum dissipator that generalizes the Abragam-Redfield-Hubbard inhomogeneous master equation (ARH…

Small-$b$ expansion of the DOZZ formula for light operators
Franco Ferrari, Marcin R. Piatek, Artur R. Pietrykowski
https://arxiv.org/abs/2509.21182 https://

Small-$b$ expansion of the DOZZ formula for light operators
We present a systematic small-$b$ expansion of the Liouville DOZZ three-point structure constant in the light-operator regime $α_i = bσ_i$ as $b\to 0$. In this limit, the exact DOZZ function factorizes into a prefactor $\mathcal{P}(b;σ_1,σ_2,σ_3)$ and a power series in $b^2$, \[ C(bσ_1,bσ_2,bσ_3) =\mathcal{P}(b;σ_i)\Bigl[1+\sum_{n=1}^\infty b^{2n}\,Ω_n(σ_1,σ_2,σ_3)\Bigr]. \] Using Thorn's asymptotic expansion of the $Υ_b$-function, we derive closed-form expressions for the leading…

From The Tyee
Exclusive: LNG Expansion Brings New Health Risks to Kitimat
The project’s fast-tracked second phase would push a key pollutant far above current limits, documents reveal.
"Nicknamed the “Eye of Sauron” by Kitimat residents, the flare from LNG Canada frequently engulfs the town in black, hydrocarbon-filled smoke, sometimes reaching the height of a 30-storey building."

Computing, Complexity and Degrowth : Systemic Considerations for Digital De-escalation
Valentin Girard, Maud Rio, Romain Couillet
https://arxiv.org/abs/2507.19070 https://

Computing, Complexity and Degrowth : Systemic Considerations for Digital De-escalation
Research on digital degrowth predominantly critiques digital expansion or presents alternative digital practices. Yet, analyzing the link between digital technologies and complexity is crucial to overcome systemic obstacles hindering digital de-escalation. This article presents the different types of links between complexity and computing observed in the literature: the infrastructural complexity inherent in digital technologies, the socio-political complexity induced by them, and finally, the …

Trump said this week that the ballroom will seat almost 1,000 people, up from an earlier estimate of about 650.
The White House announced plans in January, initially projecting the expansion backed by private donors would cost $200 million. Trump has since revised that figure to upward of $300 million
https://wapo.st/3WjyJv8

How Trump’s ballroom will dwarf the White House
Trump’s new 90,000-square-foot White House ballroom would be almost as large as the rest of the complex.

from my link log —
From Rust through LLVM to asm: the hidden journey of atomic fetch_max.
https://questdb.com/blog/rust-fetch-max-compiler-journey/
saved 2025-09-24

From Rust to Reality: The Hidden Journey of fetch_max | QuestDB
A compiler deep-dive tracing Rust’s AtomicU64

The non-contact assessment of the bridge expansion joint
Pavel Ryj\'a\v{c}ek, Kirill Golubiatnikov, Ond\v{r}ej Simon, Libor L\'ady\v{s}, Martin L\'ady\v{s}, Ond\v{r}ej \v{C}ervenka, Petr Kloko\v{c}n\'ik
https://arxiv.org/abs/2508.17109

The non-contact assessment of the bridge expansion joint
The aim of the paper is to provide information on a newly developed design methodology for the evaluation of bridge expansion joints with respect to their noise emission and overall technical condition. The methodology also gives recommendations for operational non-destructive measurements of the condition of bridge gates using a crossing laser sensors, CPX sensors or the necessary technical equipment and the method of collecting, processing and evaluating the measured data. The method can easi…

Separation of Three or More Autonomous Mobile Models under Hierarchical Schedulers
Shota Naito, Tsukasa Ninomiya, Koichi Wada
https://arxiv.org/abs/2508.19805 https://

Separation of Three or More Autonomous Mobile Models under Hierarchical Schedulers
Understanding the computational power of mobile robot systems is a fundamental challenge in distributed computing. While prior work has focused on pairwise separations between models, we explore how robot capabilities, light observability, and scheduler synchrony interact in more complex ways. We first show that the Exponential Times Expansion (ETE) problem is solvable only in the strongest model -- fully-synchronous robots with full mutual lights ($\mathcal{LUMT}^F$). We then introduce the H…

A pretty blistering report on UK airport expansion - from the House of Commons Audit Committee.
-No evidence of net benefits.
-Will impair net zero.
-Decisions being taken without the benefit of updated policy.
Airport expansion and climate and nature targets https://

"Swedish city of Kiruna wheels entire 672-tonne-church intact to new location" #architecture
https://www.dezeen.com/2025/08/20/kiruna-church-relocatio…

Optimal Remainder Estimates in the Quantization of Complex Projective Spaces
Tommaso Aschieri, B{\l}a\.zej Ruba, Jan Philip Solovej
https://arxiv.org/abs/2508.19968 https://

Optimal Remainder Estimates in the Quantization of Complex Projective Spaces
We study Berezin-Toeplitz quantization of complex projective spaces $\mathbb{CP}^{d-1}$ and obtain full asymptotic expansions of the Berezin transformation and of products of Toeplitz operators. In each case, the remainder is controlled by the next term of the expansion, either through a positivity-preserving transformation or via an operator inequality. This leads to bounds which are optimal in terms of the required regularity and feature sharp or asymptotically sharp constants.

East Timor becomes newest ASEAN member, while Thailand and Cambodia sign expanded border ceasefire (Associated Press)
https://apnews.com/article/east-timor-asean-first-expansion-fbc05e88d80a998a5ea542806437a76c
http://www.memeorandum.com/251026/p2#a251026p2

Singular Values Versus Expansion in Directed and Undirected Graphs
Jake Ruotolo, Salil Vadhan
https://arxiv.org/abs/2508.17539 https://arxiv.org/pdf/2508.1…

Singular Values Versus Expansion in Directed and Undirected Graphs
We relate the nontrivial singular values $σ_2,\ldots,σ_n$ of the normalized adjacency matrix of an Eulerian directed graph to combinatorial measures of graph expansion: \\ 1. We introduce a new directed analogue of conductance $ϕ_{dir}$, and prove a Cheeger-like inequality showing that $ϕ_{dir}$ is bounded away from 0 iff $σ_2$ is bounded away from 1. In undirected graphs, this can be viewed as a unification of the standard Cheeger Inequality and Trevisan's Cheeger Inequality for the small…

Freezeout at constant energy density and spin polarization in heavy-ion collisions
Andrea Palermo, Masoud Shokri
https://arxiv.org/abs/2507.18761 https://a…

Freezeout at constant energy density and spin polarization in heavy-ion collisions
Using the local equilibrium density operator, we develop a geometry-informed linear response theory that takes into account the parameterization of the freezeout hypersurface before the gradient expansion is carried out. Assuming local equilibrium on an iso-energy density hypersurface, we study the $Λ$ hyperon spin polarization, and compute corrections to the isothermal case due to finite density. We argue that corrections to isothermal freezeout should be small, and that even in heavy ion col…

Source: President Trump has picked Michael Selig, the chief counsel for the SEC's crypto task force, to chair the CFTC, amid a crypto push (Bloomberg Law)
https://news.bloomberglaw.com/banking-law/trump-to-pick-michael-selig-for-…

Trump to Pick Michael Selig for CFTC Chair Amid Crypto Expansion
President Donald Trump has picked Michael Selig to chair the Commodity Futures Trading Commission, according to an administration official, who asked not to be identified discussing personnel matters.

Toward Edge General Intelligence with Agentic AI and Agentification: Concepts, Technologies, and Future Directions
Ruichen Zhang, Guangyuan Liu, Yinqiu Liu, Changyuan Zhao, Jiacheng Wang, Yunting Xu, Dusit Niyato, Jiawen Kang, Yonghui Li, Shiwen Mao, Sumei Sun, Xuemin Shen, Dong In Kim
https://arxiv.org/abs/2508.18725

Toward Edge General Intelligence with Agentic AI and Agentification: Concepts, Technologies, and Future Directions
The rapid expansion of sixth-generation (6G) wireless networks and the Internet of Things (IoT) has catalyzed the evolution from centralized cloud intelligence towards decentralized edge general intelligence. However, traditional edge intelligence methods, characterized by static models and limited cognitive autonomy, fail to address the dynamic, heterogeneous, and resource-constrained scenarios inherent to emerging edge networks. Agentic artificial intelligence (Agentic AI) emerges as a transf…

Closed Formulas for $\eta$-Corrections in the Once Punctured Torus
Nelson A. Colon Vargas
https://arxiv.org/abs/2508.18334 https://arxiv.org/pdf/2508.18334…

Closed Formulas for $η$-Corrections in the Once Punctured Torus
We study $η$-correction terms in the Kauffman bracket skein algebra of the once-punctured torus $K_t(Σ_{1,1})$. While the Frohman-Gelca product-to-sum rule is explicit on the closed torus, punctures introduce correction terms in the ideal $(η)$ whose structure has resisted systematic description beyond low-determinant cases. We give a closed form for the family $P_n=(1,0)\cdot T_n((1,2))$ (determinant $2$): the correction $ε_n$ has an explicit Chebyshev expansion with coefficients that fact…

Expansion of Integer Matrices over Various Rings
Jakub Szyma\'nski
https://arxiv.org/abs/2509.17823 https://arxiv.org/pdf/2509.17823

Expansion of Integer Matrices over Various Rings
In this article, we explore the problem of constructing high-dimensional expanders through the study of relations between expansion constants over different rings. We investigate expansion constants of integer matrices regarded as morphisms between free modules over $\mathbb{R}$, $\mathbb{Z}$, and $\mathbb{Z}/p\mathbb{Z}$. We introduce a new condition which we call integral spanning regarding kernels of integer matrices, and prove that it ensures equality of real and integral expansions. In add…

Closing the Loop: Integrating Material Needs of Energy Technologies into Energy System Models
C\'elia Burghardt, Mirko Sch\"afer, Anke Weidlich
https://arxiv.org/abs/2508.19950

Closing the Loop: Integrating Material Needs of Energy Technologies into Energy System Models
The transition to a climate-neutral energy system demands large-scale renewable generation expansion, which requires substantial amounts of bulk materials like steel, cement, and polymers. The production of these materials represents an additional energy demand for the system, creating an energy-material feedback loop. Current energy system models lack a complete representation of this feedback loop. Material requirements of energy system transformation have been studied in a retrospective appr…

Replaced article(s) found for math.DS. https://arxiv.org/list/math.DS/new
[1/1]:
- Weak expansion properties and a large deviation principle for coarse expanding conformal systems
Zhiqiang Li, Hanyun Zheng

Schwinger-Keldysh effective theory of charge transport: redundancies and systematic $\omega/T$ expansion
Eren Firat, Andrew Gomes, Filippo Nardi, Riccardo Penco, Riccardo Rattazzi
https://arxiv.org/abs/2508.18346

Schwinger-Keldysh effective theory of charge transport: redundancies and systematic $ω/T$ expansion
We study Schwinger-Keldysh effective field theories (EFTs) for systems with non-Abelian internal symmetries near thermal equilibrium. We consider two approaches that were put forward in the literature -- one using a redundant Goldstone parameterization, the other employing an adjoint matter field -- and demonstrate their complete equivalence by providing an explicit dictionary and proving their equivalence at the path integral level. Critically, we extend both formalisms to be compatible with t…

Decay of connection probability in high-dimensional continuum percolation
Matthew Dickson, Yucheng Liu
https://arxiv.org/abs/2507.19288 https://arxiv.org/p…

Decay of connection probability in high-dimensional continuum percolation
We study a percolation model on $\mathbb R^d$ called the random connection model. For $d$ large, we use the lace expansion to prove that the critical two-point connection probability decays like $|x|^{-(d-2)}$ as $|x| \to \infty$, with possible anisotropic decay. Our proof also applies to nearest-neighbour Bernoulli percolation on $\mathbb Z^d$ in $d \ge 11$ and simplifies considerably the proof given by Hara in 2008. The method is based on the recent deconvolution strategy …

On the convergence of PINNs for inverse source problem in the complex Ginzburg-Landau equation
Xing Cheng, Zhiyuan Li, Mengmeng Zhang, Xuezhao Zhang
https://arxiv.org/abs/2507.18978

On the convergence of PINNs for inverse source problem in the complex Ginzburg-Landau equation
This paper addresses the problem of recovering the spatial profile of the source in the complex Ginzburg-Landau equation from regional observation data at fixed times. We establish two types of sufficient measurements for the unique solvability of the inverse problem. The first is to determine the source term by using whole data at one fixed instant. Conditional stability is established by using the eigenfunction expansion argument. Next, using the analytic continuation method, both uniqueness …

BirdRecorder's AI on Sky: Safeguarding birds of prey by detection and classification of tiny objects around wind turbines
Nico Klar, Nizam Gifary, Felix P. G. Ziegler, Frank Sehnke, Anton Kaifel, Eric Price, Aamir Ahmad
https://arxiv.org/abs/2508.18136

BirdRecorder's AI on Sky: Safeguarding birds of prey by detection and classification of tiny objects around wind turbines
The urgent need for renewable energy expansion, particularly wind power, is hindered by conflicts with wildlife conservation. To address this, we developed BirdRecorder, an advanced AI-based anti-collision system to protect endangered birds, especially the red kite (Milvus milvus). Integrating robotics, telemetry, and high-performance AI algorithms, BirdRecorder aims to detect, track, and classify avian species within a range of 800 m to minimize bird-turbine collisions. BirdRecorder integrat…

Insights into spatial mixing of multiple populations in dynamically-young globular clusters
V\'aclav Pavl\'ik, Melvyn B. Davies, Ellen I. Leitinger, Holger Baumgardt, Alexey Bobrick, Ivan Cabrera-Ziri, Michael Hilker, Andrew J. Winter
https://arxiv.org/abs/2508.19747

Insights into spatial mixing of multiple populations in dynamically-young globular clusters
Many galactic globular clusters (GCs) contain at least two stellar populations. Recent observational studies found that the radial distributions of the first (P1) and second population (P2) differ in dynamically-young GCs. Since P2 is conventionally assumed to form more centrally concentrated, the rapid mixing (or even inversion) in some GCs but not others is puzzling. We investigate whether dynamical processes specific to certain GCs might cause this. Specifically, we evaluate the expansion of…

Majorana Diagrammatics for Quantum Spin-1/2 Models
Thibault Noblet, Laura Messio, Riccardo Rossi
https://arxiv.org/abs/2508.19734 https://arxiv.org/pdf/250…

Majorana Diagrammatics for Quantum Spin-1/2 Models
A diagrammatic formalism for lattices of 1/2 is developed. It is based on an unconstrained mapping between spin and Majorana operators. This allows the use of standard tools of diagrammatic quantum many-body theory without requiring projections. We derive, in particular, the Feynman rules for the expansion around a color-preserving mean-field theory. We then present the numerical results obtained by computing the corrections up to second order for the Heisenberg model in one and two dimensions,…

An Analytical and AI-discovered Stable, Accurate, and Generalizable Subgrid-scale Closure for Geophysical Turbulence
Karan Jakhar, Yifei Guan, Pedram Hassanzadeh
https://arxiv.org/abs/2509.20365

An Analytical and AI-discovered Stable, Accurate, and Generalizable Subgrid-scale Closure for Geophysical Turbulence
By combining AI and fluid physics, we discover a closed-form closure for 2D turbulence from small direct numerical simulation (DNS) data. Large-eddy simulation (LES) with this closure is accurate and stable, reproducing DNS statistics including those of extremes. We also show that the new closure could be derived from a 4th-order truncated Taylor expansion. Prior analytical and AI-based work only found the 2nd-order expansion, which led to unstable LES. The additional terms emerge only when int…

Scalable Effective Models for Superconducting Nanostructures: Applications to Double, Triple, and Quadruple Quantum Dots
Daniel Bobok, Luk\'a\v{s} Frk, Vladislav Pokorn\'y, Martin \v{Z}onda
https://arxiv.org/abs/2508.18465

Scalable Effective Models for Superconducting Nanostructures: Applications to Double, Triple, and Quadruple Quantum Dots
We introduce a versatile and scalable framework for constructing effective models of superconducting (SC) nanostructures described by the generalized SC Anderson impurity model with multiple quantum dots and leads. Our Chain Expansion (ChE) method maps each SC lead onto a finite tight-binding chain with parameters obtained from Padé approximants of the tunneling self-energy. We provide an explicit algorithm for the general case as well as simple analytical expressions for the chain parameters …

Trafficking is #trafficking, no matter where it happens or who is targeted. This seems to be a particularly gross example. Props to the agencies involved.
https://www.cbsnews.com/news/baby-traffi…

U.S. intelligence leads to capture of alleged baby trafficking ringleader, cartel-linked "La Diabla"
The case underscores Washington's intensified targeting of Mexican cartels and marks an expansion in the way U.S. counterterrorism policy is applied.

Anthropic plans to triple its global workforce and expand its applied AI team 5x in 2025, after growing its business clients from ~1K to 300K in two years (MacKenzie Sigalos/CNBC)
https://www.cnbc.com/2025/09/26/anthropic-global-ai-hiring-spree.html

Anthropic to triple international workforce in global AI push
Anthropic is accelerating its global enterprise expansion, tripling its international headcount and pushing deployment of Claude’s AI models across industries.

Graph atomic cluster expansion for foundational machine learning interatomic potentials
Yury Lysogorskiy, Anton Bochkarev, Ralf Drautz
https://arxiv.org/abs/2508.17936 https://

Graph atomic cluster expansion for foundational machine learning interatomic potentials
Foundational machine learning interatomic potentials that can accurately and efficiently model a vast range of materials are critical for accelerating atomistic discovery. We introduce universal potentials based on the graph atomic cluster expansion (GRACE) framework, trained on several of the largest available materials datasets. Through comprehensive benchmarks, we demonstrate that the GRACE models establish a new Pareto front for accuracy versus efficiency among foundational interatomic pote…

Understanding Tool-Integrated Reasoning
Heng Lin, Zhongwen Xu
https://arxiv.org/abs/2508.19201 https://arxiv.org/pdf/2508.19201

Understanding Tool-Integrated Reasoning
We study why Tool-Integrated Reasoning (TIR) makes Large Language Models (LLMs) more capable. While LLMs integrated with tools like Python code interpreters show great promise, a principled theory explaining why this paradigm is effective has been missing. This work provides the first formal proof that TIR fundamentally expands an LLM's capabilities. We demonstrate that tools enable a strict expansion of the model's empirical and feasible support, breaking the capability ceiling of pure-text mo…

An alternate approach to bilinear rough singular integrals
Ankit Bhojak, Saurabh Shrivastava
https://arxiv.org/abs/2508.19181 https://arxiv.org/pdf/2508.19…

An alternate approach to bilinear rough singular integrals
The goal of this paper is to provide a new approach to address the $L^p-$boundedness of bilinear rough singular integral operators. This approach relies on local Fourier series expansion of input functions leading to trilinear estimates with desired decay in the frequency parameter. This approach departs from the existing methods of the wavelet decomposition of the multiplier employed in the work of Grafakos, He and Honzík and in a series of subsequent papers in the context of bilinear rough s…

A closer look at Peru’s Amazon reveals new mining trends, deforestation https://news.mongabay.com/2025/10/a-closer-look-at-perus-amazon-reveals-new-mining-trends-deforestation/

A closer look at Peru’s Amazon reveals new mining trends, deforestation
For years, gold mining has been one of Peru’s most pressing environmental challenges, with illegal operations clearing the Amazon Rainforest and polluting rivers with chemicals. The industry continues to grow, as miners spread into new parts of the country and adopt different ways of working. One recent project that maps mining operations and their expansion […]

Supergroup Invariants and the Brane/Negative Brane Expansion
Kasia Budzik
https://arxiv.org/abs/2509.20451 https://arxiv.org/pdf/2509.20451

Supergroup Invariants and the Brane/Negative Brane Expansion
We propose a Molien--Weyl-type formula computing generating functions of invariants of supergroups $U(N|M)$, i.e. polynomials in supertraces, which arise as gauge groups of brane/negative brane systems in string theory. We either prove or numerically verify the formula in various examples. The formula further leads to a new expansion relating finite-$N$ and infinite-$N$ indices of $U(N)$ gauge theories. We comment on its relation to Murthy's Giant Graviton expansion, for which we suggest a…

"Brazil greenlights oil drilling in Amazon as environmentalists raise alarm"
#Brazil #AmazonRainforest #FossilFuels

Internal dynamics and structure of Cepheus OB4. The asymmetric expansion of Berkeley 59
Bruno Wiesneth, Koraljka Muzic, Victor Almendros-Abad
https://arxiv.org/abs/2509.19175 ht…

Internal dynamics and structure of Cepheus OB4. The asymmetric expansion of Berkeley 59
Accurate measurements of young stellar cluster internal dynamics provide crucial insights into their formation. With Gaia, we are now able to trace stellar motions and study the dynamics of star clusters with unprecedented precision, but this requires a reliable list of probable members. We examine a 2 deg-radius region in Cepheus OB4, centered on the young cluster Berkeley 59, to build a reliable candidate member list, enabling the study of the cluster's structure, kinematics, and stellar popu…

💗 Forest expansion increases agricultural output, new study shows
#india

Forest expansion increases agricultural output, new study shows
Agriculture is the largest cause of deforestation. So, it follows that forest expansion efforts would displace agriculture—but new research from Georgia Tech's School of Economics reports that that's not necessarily the case. And not only that, forest expansion actually increased agricultural output in the study.

The Atlantic CEO Nicholas Thompson says the magazine is profitable, with 1.3M subscribers paying an average of $80 annually; 500,000 of those pay $90 for print (Brian Lowry/The Wrap)
https://www.thewrap.com/the-atlantic-hiring-spr…

The Atlantic Envy: What Does It Know That Other Publications Don’t?
The magazine’s hiring spree has gobbled up writers, many from the Washington Post, in an expansion its top brass say is sustainable.

Future stability of solutions of the Einstein-nonlinear scalar field system with decelerated expansion
Louie Bernhardt
https://arxiv.org/abs/2508.15303 https://

Future stability of solutions of the Einstein-nonlinear scalar field system with decelerated expansion
We study solutions to the Einstein equations coupled to a nonlinear scalar field with exponential potential. This system admits Friedmann-Lemaître-Robertson-Walker solutions undergoing decelerated expansion, with $\mathbb{T}^3$ spatial topology and scale factor $a(t) = t^p$ for $1/3 < p < 1$. For each $p \in (2/3,1)$, we prove that the corresponding FLRW spacetime is future-stable as a solution to the Einstein-nonlinear scalar field system. Given initial data on a spacelike hypersurface that i…

Steerable Invariant Beamformer Using a Differential Line Array of Omnidirectional and Directional Microphones with Null Constraints
Yankai Zhang, Jiafeng Ding, Jingjing Ning, Qiaoxi Zhu
https://arxiv.org/abs/2508.17607

Steerable Invariant Beamformer Using a Differential Line Array of Omnidirectional and Directional Microphones with Null Constraints
Line differential microphone arrays have attracted attention for their ability to achieve frequency-invariant beampatterns and high directivity. Recently, the Jacobi-Anger expansion-based approach has enabled the design of fully steerable-invariant differential beamformers for line arrays combining omnidirectional and directional microphones. However, this approach relies on the analytical expression of the ideal beam pattern and the proper selection of truncation order, which is not always pra…

Structure of heavy quarkonia under strong magnetic field
Ahmad Jafar Arifi, Kei Suzuki
https://arxiv.org/abs/2507.18894 https://arxiv.org/pdf/2507.18894

Structure of heavy quarkonia under strong magnetic field
We investigate the structural modifications of heavy quarkonia in the presence of strong magnetic fields using a constituent quark model. By incorporating the effects of spin mixing and quark Landau levels, we employ a nonrelativistic Hamiltonian that captures the essential features of quark dynamics in a magnetic field. The two-body Schrödinger equation is solved using the cylindrical Gaussian expansion method, which respects the cylindrical symmetry induced by a magnetic field. We extract th…

Cluster Expansion and Decay of Correlations for Multidimensional Long-Range Ising Models
Lucas Affonso, Rodrigo Bissacot, Jo\~ao Maia, Jo\~ao F. Rodrigues, Kelvyn Welsch
https://arxiv.org/abs/2508.15666

Cluster Expansion and Decay of Correlations for Multidimensional Long-Range Ising Models
We develop the cluster expansion for the multidimensional multiscaled contours defined by three of us. These contours are suitable for long-range Ising models with interaction $J_{xy}=J(|x-y|)= J/|x-y|^α$, $J>0$, and $α>d$. As an application of the convergence of the cluster expansion at low temperatures, we study the decay of the truncated two-point correlation functions, showing that the decay is algebraic with coefficient $α$.

Hyperbinary partitions and q-deformed rationals
Thomas McConville (Kennesaw State University), James Propp (University of Massachusetts Lowell), Bruce E. Sagan (Michigan State University)
https://arxiv.org/abs/2508.20026

Hyperbinary partitions and q-deformed rationals
A hyperbinary partition of the nonnegative integer n is a partition where every part is a power of 2 and every part appears at most twice. We give three applications of the length generating function for such partitions, denoted by h_q(n). Morier-Genoud and Ovsienko defined the q-analogue of a rational number [r/s]_q in various ways, most of which depend directly or indirectly on the continued fraction expansion of r/s. As our first application we show that [r/s]_q = q h_q(n-1)/h_q(n) where r/s…

Multipole expansion for dispersion forces -- watch this trace
Jivesh Kaushal, Chris Boldt, Stefan Scheel, Athanasios Laliotis, Paolo Pedri
https://arxiv.org/abs/2508.15410 https…

Multipole expansion for dispersion forces -- watch this trace
Light-matter interaction models invariably rely on the multipole expansion of the electromagnetic potentials generated by complex charge distributions. These multipoles are typically taken to be traceless, however, for a correct evaluation of dispersion forces at all distances, the validity of this assumption has to be checked carefully. Here, we revisit the concept of dispersion forces on an atom near a dielectric surface from the perspective of macroscopic quantum electrodynamics and find tha…

Higher-Dimensional Chirally Stabilized Fixed Points and Their Deformations
Aleksandar Ljepoja, L. C. R. Wijewardhana, Yashar Komijani
https://arxiv.org/abs/2508.18373 https://…

Higher-Dimensional Chirally Stabilized Fixed Points and Their Deformations
Non-Fermi liquids in $d>2$ remain poorly understood, particularly when relevant perturbations destabilize them. In one spatial dimension, chirally stabilized fixed points provide a rare class of analytically tractable non-Fermi-liquid critical points, but their higher-dimensional analogues have been elusive. Here, we develop a Wilsonian operator-product-expansion renormalization group scheme that captures power-divergent terms and use it to construct finite-$N$ higher-dimensional analogues of c…

A Framework for Rapidly Developing and Deploying Protection Against Large Language Model Attacks
Adam Swanda, Amy Chang, Alexander Chen, Fraser Burch, Paul Kassianik, Konstantin Berlin
https://arxiv.org/abs/2509.20639

A Framework for Rapidly Developing and Deploying Protection Against Large Language Model Attacks
The widespread adoption of Large Language Models (LLMs) has revolutionized AI deployment, enabling autonomous and semi-autonomous applications across industries through intuitive language interfaces and continuous improvements in model development. However, the attendant increase in autonomy and expansion of access permissions among AI applications also make these systems compelling targets for malicious attacks. Their inherent susceptibility to security flaws necessitates robust defenses, yet …

Testing the Constancy of Type Ia Supernova Luminosities with Gaussian Process
Akshay Rana
https://arxiv.org/abs/2509.19494 https://arxiv.org/pdf/2509.19494…

Testing the Constancy of Type Ia Supernova Luminosities with Gaussian Process
Type Ia supernovae (SNe~Ia) are central to studies of cosmic expansion, under the assumption that their absolute magnitude $M_B$ does not evolve with redshift. Even small drifts in brightness can bias cosmological parameters such as $H_0$ and $w$. Here we test this assumption using a non-parametric Gaussian Process (GP) reconstruction of the expansion history from cosmic chronometer $H(z)$ data, which provides a model-independent baseline distance modulus, $μ_{\rm GP}(z)$. To propagate uncerta…

The Trump administration reportedly plans to mobilize up to 1,700 National Guard troops across 19 states in the coming weeks
a dramatic expansion of the controversial operation that’s seen federal agents and Guard troops carrying out activities across Washington, D.C.
The troops, who will largely come from Republican-controlled states,
will serve in support of the administration’s Immigration and Customs Enforcement operations
The Guardsmen assisting ICE will be carryi…

Trump mobilizing up to 1,700 National Guardsman in 19 states to widen law and order crackdown
Deployments reportedly set to take place largely in Republican-controlled states

Singapore-based wealth management platform Endowus raised $70M , bringing its total funding to $130M , and says the new capital will boost its AI advisory tools (Katrina Bianca Cuaresma/DealStreetAsia)
https://www.dealstreetasia.com/stories/endowus-70-m-round-460635/…

Endowus closes $70m round to deepen AI, regional expansion
The funding round was led by Illuminate Financial.

Halt Mega-Dairy Expansion in North Dakota to Defend Animals & Ecosystems https://www.idausa.org/campaign/farmed-animal/latest-news/halt-mega-dairy-expansion-in-north-dakota-to-defend-anima…

Halt Mega-Dairy Expansion in North Dakota to Defend Animals & Ecosystems
 

Regulating AI use could stop its runaway energy expansion - resilience
https://www.resilience.org/stories/2025-09-17/regulating-ai-use-could-stop-its-runaway-energy-expansion/

Regulating AI use could stop its runaway energy expansion
So, we are left with pressing questions. Can we harness the benefits of AI without accelerating environmental collapse? Can AI be made truly sustainable – and if so, how?

"Sea levels are rising faster than at any time in the last 4,000 years. Here’s why"
#Sea #Climate #ClimateChange

Sea levels rising faster than they have in 4,000 years, study warns
Melting glaciers and thermal expansion are driving the ‘acceleration’ of sea level rise to record levels.

🏃‍♀️ Flopped launch and new squad building: Boston and Denver’s journey to the NWSL | Moving the Goalposts
https://www.theguardian.com/football/2025/jul/31/nwsl-boston-legacy-denver-summit-expansion-moving-the-goalposts

From kinetic gasses to an exponentially expanding universe: #universe: https://www.zarm.uni-bremen.de/en/news-list/news-display/new-attempt-to-explain-the-accelerated-expansion-of-the-universe

Log translation invariance of log soft gravitational radiation
Gianni Boschetti, Miguel Campiglia
https://arxiv.org/abs/2508.17919 https://arxiv.org/pdf/25…

Log translation invariance of log soft gravitational radiation
The gravitational radiation emitted during a classical scattering process is known to exhibit two universal logarithmic terms in its soft frequency expansion. We show that these terms can be written in a way that makes the action of \emph{logarithmic translations} manifest. Invariance under log translations naturally explains a puzzling cancellation in the contribution from outgoing massless particles and leads to a recurrence relation for expected higher-order universal log soft terms.

Digital Twin Assisted Proactive Management in Zero Touch Networks
Tamizhelakkiya K, Dibakar Das, Komal Sharma, Jyotsna Bapat, Debabrata Das
https://arxiv.org/abs/2508.17941 http…

Digital Twin Assisted Proactive Management in Zero Touch Networks
The rapid expansion of cellular networks and rising demand for high-quality services require efficient and autonomous network management solutions. Zero Touch Network (ZTN) management has emerged as a key approach to automating network operations, minimizing manual intervention, and improving service reliability. Digital Twin (DT) creates a virtual representation of the physical network in realtime, allowing continuous monitoring, predictive analytics, and intelligent decision-making by simulat…

Estimating the Local Hubble Parameter from the Thermal Evolution of Earth and Mars
Yurii V. Dumin, Elizaveta G. Khramova, Ludmila M. Svirskaya, Eugen S. Savinykh
https://arxiv.org/abs/2508.16694

Estimating the Local Hubble Parameter from the Thermal Evolution of Earth and Mars
The problem of local (e.g., interplanetary) Hubble expansion is studied for a long time but remains a controversial subject till now; and of particular interest is a plausible value of the local Hubble parameter at the scale of the Solar system. Here, we tried to estimate the corresponding quantity by the analysis of surface temperatures on the Earth and Mars, which are formed by a competition between a variable luminosity of the Sun and increasing radii of the planetary orbits. Our work employ…

Interplay of Intersite Charge Transfer, Antiferromagnetism, and Strain in Barocaloric ACu$_3$Fe$_4$O$_{12}$ Quadruple Perovskites
J. Delgado-Quesada, G. G. Guzm\'an-Verri
https://arxiv.org/abs/2508.18378

Interplay of Intersite Charge Transfer, Antiferromagnetism, and Strain in Barocaloric ACu$_3$Fe$_4$O$_{12}$ Quadruple Perovskites
We develop a minimal Landau theory for the concomitant intersite charge-transfer, antiferromagnetic, and isostructural phase transitions in ACu$_3$Fe$_4$O$_{12}$ perovskites (A = La, Pr, Nd, Sm, Eu, Gd, Tb). The model incorporates the difference in average ligand-hole occupancy between Cu and Fe, the staggered magnetization of the Fe sublattice, volume strain, and intrinsic thermal expansion, together with their couplings. It qualitatively reproduces key thermodynamic properties of the ACu$_3$F…

Bengaluru, home to about 33% of India's 1,800 GCCs and key to the $300B tech industry, struggles as its infrastructure lags behind rapid tech sector growth (Financial Times)
https://www.ft.com/content/c3ff0433-1736-4146-ab6b-cf9344108d54

The unsustainable boom in India’s Silicon Valley
Over the past two decades, Bengaluru has seen explosive growth in its tech sector. But the city’s infrastructure is not keeping up with the expansion

Weil-Petersson volumes for extended JT supergravity from ordinary differential equations
Wasif Ahmed, Clifford V. Johnson, Krishan Saraswat
https://arxiv.org/abs/2507.18715 http…

Weil-Petersson volumes for extended JT supergravity from ordinary differential equations
Recent work [1] produced an efficient method for computing Weil-Petersson volumes using two ordinary differential equations (ODEs) that appear naturally in double scaled random matrix models. One is the defining string equation of the model and the other is the Gel'fand-Dikii equation satisfied by the diagonal resolvent of an auxiliary Hamiltonian used to compute correlators of macroscopic loops. In concert, when applied to Jackiw-Teitelboim gravity, the recursive expansion of these two ODEs ef…

BofA Securities: Blinkit holds over 50% share of India's quick commerce market, as rivals Zepto and Instamart prioritize profitability over aggressive expansion (Pranav Mukul/The Economic Times)
https://economict…

Blinkit tops quick commerce with over 50% market share, set to gain more: BofA
Blinkit has solidified its dominance in India's quick commerce sector, now commanding over 50% market share, according to BofA Securities. This growth comes as rivals like Zepto and Instamart prioritize profitability over aggressive expansion. With reduced competition and sustained user demand, Blinkit is poised for further gains in net merchandise value and gross merchandise value.

CPL-parametrized cosmic expansion in Galileon gravity: Constraints from recent data
Amit Samaddar, S. Surendra Singh
https://arxiv.org/abs/2508.14392 https://

CPL-parametrized cosmic expansion in Galileon gravity: Constraints from recent data
We explore the cosmic expansion history within the framework of Galileon gravity by employing a redshift-based expression for the Hubble rate, $H(z)$, derived from the CPL parametrization $ω_{DE}(z)=ω_{0}+ω_{a}\frac{z}{1+z}$. This parametrization allows for a time-dependent expansion history consistent with the non-linear Galileon field equations. To constrain the model parameters, we perform a MCMC analysis using $46$ Hubble parameter measurements, DESI DR2 BAO data and $1701$ Pantheon+ dat…

Defense secretary Pete Hegseth, ordered that national guard troops patrolling the streets of Washington DC under federal control will now be armed.
The defense department did not immediately offer any other details about arming the federalized troops in DC, or why it was needed.
The step is an escalation in the federal government’s rare intervention into policing in the nation’s capital and came as nearly 2,000 national guard members are stationed in the city.
Earlier this …

Exact Solution for Two $\delta$-Interacting Bosons on a Ring in the Presence of a $\delta$-Barrier: Asymmetric Bethe Ansatz for Spatially Odd States
Maxim Olshanii, Mathias Albert, Gianni Aupetit-Diallo, Patrizia Vignolo, Steven G. Jackson
https://arxiv.org/abs/2508.17371

Exact Solution for Two $δ$-Interacting Bosons on a Ring in the Presence of a $δ$-Barrier: Asymmetric Bethe Ansatz for Spatially Odd States
In this article, we apply the recently proposed Asymmetric Bethe Ansatz method to the problem of two one-dimensional, short-range-interacting bosons on a ring in the presence of a $δ$-function barrier. Only half of the Hilbert space--namely, the two-body states that are odd under point inversion about the position of the barrier--is accessible to this method. The other half is presumably non-integrable. We consider benchmarking the recently proposed $1/g$ expansion about the hard-core boson po…

Quantum Cosmology in Accelerating Spacetimes
S. P. Miao, N. C. Tsamis, R. P. Woodard
https://arxiv.org/abs/2508.17787 https://arxiv.org/pdf/2508.17787

Quantum Cosmology in Accelerating Spacetimes
We simplify the gravitational equations which apply in accelerating spacetimes and are consistent with the cosmological principle. Solutions to these equations should be tantamount to all order re-summations of the perturbative leading logarithms. We discuss the null hypothesis and we study the local expansion rate observable.

The $\Lambda_{b} \to \Lambda$ transition form factors in perturbative QCD approach
Lei Yang, Jia-Jie Han, Qin Chang, Fu-Sheng Yu
https://arxiv.org/abs/2508.18069 https://…

The $Λ_{b} \to Λ$ transition form factors in perturbative QCD approach
In this work, we investigate the $Λ_b \to Λ$ transition form factors in the perturbative QCD (PQCD) approach, incorporating higher-twist light-cone distribution amplitudes (LCDAs). The resulted form factors show that higher-twist LCDAs are dominant numerically. By combining our PQCD predictions at low-$q^2$ with lattice QCD results at high-$q^2$, $z$-series expansion fits are performed to parametrize the form factors over the full kinematic range. We also provide the prediction for physical o…

US military strikes boat in Pacific in apparent expansion of campaign against alleged drug trafficking (Natasha Bertrand/CNN)
https://www.cnn.com/2025/10/22/politics/us-military-strike-pacific-8th
http://www.memeorandum.com/251022/p123#a251022p123

New and updated long-periodic terms in harmonic development of the Earth tide-generating potential
Sergey M. Kudryavtsev, Rodolfo G. Cionco
https://arxiv.org/abs/2508.18111 http…

New and updated long-periodic terms in harmonic development of the Earth tide-generating potential
We present a new harmonic development of the long-periodic band of the Earth tide-generating potential (TGP). It updates the corresponding part of the previous TGP expansion, KSM03 (Kudryavtsev, J. Geodesy, 77:829, 2004), and includes 38 terms of period longer than $\simeq$18 years (yr) and amplitude not less than $10^{-8}~{\rm m}^2\,{\rm s}^{-2}$. The development is made through a modified spectral analysis of the TGP numerical values tabulated over more than 30,000 yr (13,200~BC--17,191~AD). …

🔥 Seagate Expansion 28TB External Hard Drive and the HAMR HDD Within Mini-Review
https://www.servethehome.com/seagate-expansion-28tb-external-hard-drive-and-the-hamr-hdd-within-mini-review/

Seagate Expansion 28TB External Hard Drive and the HAMR HDD Within Mini-Review
We test the Seagate Expansion 28TB and then opened it up to find a Seagate Barracuda 28TB HAMR-based drive inside the USB enclosure

A tail bound for cumulant series for complex functions of independent random variables
Mikhail Isaev
https://arxiv.org/abs/2508.16952 https://arxiv.org/pdf…

A tail bound for cumulant series for complex functions of independent random variables
We obtain explicit bounds on the truncation error of the cumulant series of a bounded complex function of a random vector with independent components. The bounds are based on multidimensional differences. This extends the theory of the author with Brendan McKay and Rui-Ray Zhang (J. Combin. Th., Ser. B, 2025) from real functions to complex functions. We demonstrate some initial applications including a Berry--Esseen bound, an Edgeworth expansion for triangles in random graphs, and enumeration o…

In-medium heavy quark-antiquark $T$-matrix without partial wave expansion
Anurag Tiwari, Min He
https://arxiv.org/abs/2508.11895 https://arxiv.org/pdf/2508…

In-medium heavy quark-antiquark $T$-matrix without partial wave expansion
The T-matrix of the heavy quark-antiquark ($Q\bar{Q}$) pair interacting through a screened Cornell potential in the quark-gluon plasma (QGP) is computed without employing the partial wave expansion. This is compared with the results obtained using the conventional method of partial wave expansion. Through a comprehensive survey over a range of screening mass and center-of-mass energy, which, when combined, determine the orbital angular momentum involved in the scattering through the associated …

London-based "neocloud" startup Nscale raised a $1.1B Series B led by Aker, with Nvidia participating; Aker says it is investing $285M for a 9.3% stake (Bloomberg)
https://www.bloomberg.com/news/articles/2025-09-25/a…

Associativity of celestial OPE, higher spins and self-duality
Mattia Serrani
https://arxiv.org/abs/2508.16804 https://arxiv.org/pdf/2508.16804

Associativity of celestial OPE, higher spins and self-duality
We highlight and clarify the connection between several ideas and self-dual theories: (a) the operator product expansion (OPE) associativity in celestial conformal field theory (CCFT); (b) the vanishing of tree-level amplitudes; (c) the Jacobi identity for the "gauge" algebra; (d) the light-cone holomorphic constraints. Naturally, (b), (c), or (d) are closely related to self-duality. In particular, the recently classified arXiv:2505.12839 chiral higher-spin theories with one- and two-derivative…

1Kosmos, which provides identity verification and passwordless authentication software, raised a $57M Series B, including a $10M line of credit (Duncan Riley/SiliconANGLE)
https://siliconangle.com/2025/08/12/1kosm…

1Kosmos raises $57M to advance passwordless authentication and global identity security expansion - SiliconANGLE
1Kosmos raises $57M to advance passwordless authentication and global identity security expansion - SiliconANGLE

Thermal Correlators and Black Holes: From Infinity to Singularity
Samuel Valach
https://arxiv.org/abs/2508.17139 https://arxiv.org/pdf/2508.17139

Thermal Correlators and Black Holes: From Infinity to Singularity
This thesis explores thermal correlation functions in conformal field theories (CFTs) and their connection to black hole geometry within the AdS/CFT correspondence, using a near-boundary expansion as the main tool. Two themes are examined. First, we show that the stress-tensor sector of boundary correlators encodes information about black hole singularities. By resumming contributions from the stress-tensor and its composites, we uncover branch-point singularities in complex time, corresponding…

Anthropic and Google officially announce their cloud partnership worth tens of billions, giving Anthropic access to 1M TPUs and 1 GW of capacity in 2026 (MacKenzie Sigalos/CNBC)
https://www.cnbc.com/2025/10/23/anthropic-google-cloud-deal-tpu.html

Google and Anthropic announce cloud deal worth tens of billions of dollars
While Google is powering Anthropic's next phase of compute expansion, Amazon remains its most deeply embedded partner.

Summation of power singularities
A. V. Ivanov
https://arxiv.org/abs/2508.17289 https://arxiv.org/pdf/2508.17289

Summation of power singularities
In this paper, we investigate an example of summation of non-logarithmic singularities of a specific type in a two-dimensional non-linear sigma model. As a result of the study, we obtained an explicit formula, which, upon formal expansion in terms of the coupling constant, reproduces a particular part of the quantum action. Additionally, the paper introduces a new auxiliary function and discusses some of its properties.

Australia-based Morse Micro, which develops ultra-low power Wi-Fi HaLow chips, raised a ~$38M Series C, bringing its total raised to ~$125M (ComputerWeekly.com)
https://www.computerweekly.com/news/366631616/Morse-Micro-secures-59m-fun…

Morse Micro secures $59m funding to lead the next era of IoT
Fresh capital to accelerate Morse Micro’s expansion into international markets, scale production of its Wi-Fi HaLow chips and support the ecosystem shift toward IoT 2.0, characterised by high-throughput, long-range, scalable connectivity

Towards mixed phase correlators in monomial matrix models
A. Popolitov
https://arxiv.org/abs/2509.21218 https://arxiv.org/pdf/2509.21218

Towards mixed phase correlators in monomial matrix models
Correlators in monomial Hermitian matrix model strongly depend on the choice of eigenvalue integration contours. We express Schur correlator in case of several different integration contours (mixed phase case) as a sum over products of Schur correlators for just one type of contour (pure phase), where expansion coefficients are manifestly made from Littlewood-Richardson and Mugnaghan-Nakayama coefficients. Further, for pure phase Schur correlators we find concise superintegrability formulas t…

Bigraded Polynomials for the Cohomology of Wild Hitchin Systems
Dan Xie
https://arxiv.org/abs/2509.20872 https://arxiv.org/pdf/2509.20872

Bigraded Polynomials for the Cohomology of Wild Hitchin Systems
We introduce a bi-graded polynomial that encodes the cohomology groups of the wild Hitchin system of type~$A_{n-1}$, constructed using an irregular singularity (determined by an integer~$m$) and an arbitrary regular singularity~$f$. When the regular singularity is of the form~$f = [1, \ldots, 1]$, the bi-graded polynomial~$C_{m,n}(q,t)$ coincides with the bigraded rational parking function defined combinatorially, admitting a Schur expansion~$C_{m,n}(q,t) = \sum_λf_λ(q,t) s_λ(x)$. For genera…

A look at CoreWeave, whose financing strategy involves using GPUs as collateral for large loans, which enabled rapid expansion but resulted in $11.2B in debt (Rashi Shrivastava/Forbes)
https://www.forbes.com/sites/rashishrivast

How CoreWeave’s GPU Bet Made Four Risk-Loving Cryptominers AI Billionaires
Creative financing and an enormous appetite for risk helped CoreWeave’s Michael Intrator ride the AI data center boom to a $6.7 billion personal fortune. But as bubble fears mount, his reliance on billions in debt to supply advanced chips to major AI players puts him in a powerful position.

Five-loop Anomalous Dimensions of Cubic Scalar Theory from Operator Product Expansion
Rijun Huang, Qingjun Jin, Yi Li
https://arxiv.org/abs/2508.13620 https://

Five-loop Anomalous Dimensions of Cubic Scalar Theory from Operator Product Expansion
Recently, an Operator Product Expansion method has been proposed for renormalization in quantum field theories. This method extracts UV divergences from two-point propagator-type integrals, and it is believed to be applicable to generic QFTs. In the present work, we apply the OPE method to the renormalization of scalar theory with cubic interactions in six-dimensions. We have successfully computed the 5-loop corrections to the anomalous dimensions of the $ϕ^Q$ operator, as well as the large $N…