Tootfinder

RIS-Assisted XL-MIMO for Near-Field and Far-Field Communications
Xiaomin Cao, Mohammadali Mohammadi, Hien Quoc Ngo, Hyundong Shin, Michail Matthaiou
https://arxiv.org/abs/2509.23284

RIS-Assisted XL-MIMO for Near-Field and Far-Field Communications
We consider a reconfigurable intelligent surface (RIS)-assisted extremely large-scale multiple-input multiple-output (XL-MIMO) downlink system, where an XL-MIMO array serves two groups of single-antennas users, namely near-field users (NFUEs) and far-field users (FFUEs). FFUEs are subject to blockage, and their communication is facilitated through the RIS. We consider three precoding schemes at the XL-MIMO array, namely central zero-forcing (CZF), local zero-forcing (LZF) and maximum ratio tran…

Sources: Teams eye Seahawks vets in trade talks https://www.espn.com/nfl/story/_/id/46810899/sources-seahawks-field-trade-calls-boye-mafe-riq-woolen

A Two-Gauge Field Model for Magnetoelectric Boundaries
F. A. Barone, H. L. Oliveira, J. P. Ferreira
https://arxiv.org/abs/2508.21697 https://arxiv.org/pdf/…

A Two-Gauge Field Model for Magnetoelectric Boundaries
This work introduces a field-theoretical model designed to simulate the presence of material layers with magnetoelectric properties. The model comprises the standard Maxwell field coupled to a Chern-Simons field confined to a planar layer. The electromagnetic behavior of the boundary is emulated through the interaction between the Chern-Simons and Maxwell fields, governed by two parameters: the Chern-Simons mass and the coupling constant between the fields. Both parameters can be adjusted to re…

🫧 Self-cleaning glass uses electric field to remove dust particles within seconds
#glass

Self-cleaning glass uses electric field to remove dust particles within seconds
What if windows could clean themselves at the flick of a switch? We're not quite there yet, but we are getting closer. Researchers in China have developed a transparent, easy-to-produce self-cleaning glass that can remove particles in just 10 seconds using an electric field.

Probing the large-scale magnetic field inside the Sun from three decades of observed surface magnetograms
Soumyadeep Chatterjee, Gopal Hazra
https://arxiv.org/abs/2509.23959 htt…

Probing the large-scale magnetic field inside the Sun from three decades of observed surface magnetograms
Space-weather and disturbances in the heliosphere are manifestations of the solar magnetic field, which is solely driven by the interior dynamo, and constraining the solar interior magnetic field and its oscillatory behavior is one of the major challenges in solar physics. Observationally, none of the techniques, including helioseismology, are able to provide an estimation of the interior magnetic field. We reconstruct, for the first time, the dynamics of the interior large-scale magnetic field…

Finite-temperature stability from doublet inflation field with right-handed neutrinos
Shilpa Jangid, Seong Chan Park
https://arxiv.org/abs/2509.23748 https://

Finite-temperature stability from doublet inflation field with right-handed neutrinos
We study the augmentation of the Standard Model (SM) with another $SU(2)$ Higgs doublet and right-handed neutrinos. The second Higgs doublet ($Φ_2$) is defined to be odd under the $Z_2$ symmetry, and hence, the lightest stable neutral particle from the additional doublet becomes the cold dark matter candidate. The right-handed neutrino field coupled to the Higgs field provides non-zero mass for the neutrinos. The inert doublet field coupled non-minimally to gravity as $ζ_2 Φ_2^\dagger Φ_2 R…

Fast Feature Field ($\text{F}^3$): A Predictive Representation of Events
Richeek Das, Kostas Daniilidis, Pratik Chaudhari
https://arxiv.org/abs/2509.25146 https://

Fast Feature Field ($\text{F}^3$): A Predictive Representation of Events
This paper develops a mathematical argument and algorithms for building representations of data from event-based cameras, that we call Fast Feature Field ($\text{F}^3$). We learn this representation by predicting future events from past events and show that it preserves scene structure and motion information. $\text{F}^3$ exploits the sparsity of event data and is robust to noise and variations in event rates. It can be computed efficiently using ideas from multi-resolution hash encoding and de…

Friberg, Fialkiewicz, Strasser – Field Repairs
https://www.clongclongmoo.org/2025/09/27/friberg-fialkiewicz-strasser-field-repairs/
@…

A multiscale analysis of mean-field transformers in the moderate interaction regime
Giuseppe Bruno, Federico Pasqualotto, Andrea Agazzi
https://arxiv.org/abs/2509.25040 https://…

A multiscale analysis of mean-field transformers in the moderate interaction regime
In this paper, we study the evolution of tokens through the depth of encoder-only transformer models at inference time by modeling them as a system of particles interacting in a mean-field way and studying the corresponding dynamics. More specifically, we consider this problem in the moderate interaction regime, where the number $N$ of tokens is large and the inverse temperature parameter $β$ of the model scales together with $N$. In this regime, the dynamics of the system displays a multiscal…

Beyond the Algorithm: A Field Guide to Deploying AI Agents in Clinical Practice
Jack Gallifant, Katherine C. Kellogg, Matt Butler, Amanda Centi, Patrick F. Doyle, Sayon Dutta, Joyce Guo, Matthew J. Hadfield, Esther H. Kim, David E. Kozono, Hugo JWL Aerts, Adam B. Landman, Raymond H. Mak, Rebecca G. Mishuris, Tanna L. Nelson, Guergana K. Savova, Elad Sharon, Benjamin C. Silverman, Umit Topaloglu, Jeremy L. Warner, Danielle S. Bitterman

Beyond the Algorithm: A Field Guide to Deploying AI Agents in Clinical Practice
Large language models (LLMs) integrated into agent-driven workflows hold immense promise for healthcare, yet a significant gap exists between their potential and practical implementation within clinical settings. To address this, we present a practitioner-oriented field manual for deploying generative agents that use electronic health record (EHR) data. This guide is informed by our experience deploying the "irAE-Agent", an automated system to detect immune-related adverse events from clinical …

Meeting LISA
LISA: the Lightweight In Situ Analysis box is one of a kind, built by our friends at PICE in the Niels Bohr Institute. Later this year we're taking LISA to #Antarctica for the first time ever, to analyse shallow #snow and #firn cores directly in the field. We hope LISA will help us understand how much snow falls in Dronning Maud Land, how much it varies from year to year and what is the influence of sea ice and far field atmospheric processes on the rate…
http://sternaparadisaea.net/2025/09/30/meeting-lisa/

Mean Field Games of Controls with Dirichlet \& Neumann Boundary Conditions
P. Jameson Graber, Kyle Rosengartner
https://arxiv.org/abs/2508.21642 https://

Mean Field Games of Controls with Dirichlet \& Neumann Boundary Conditions
In a mean field game of controls, a large population of identical players seek to minimize a cost that depends on the joint distribution of the states of the players and their controls. We consider the classes of mean field games of controls in which the value function and the distribution of player states satisfy either Dirichlet or Neumann boundary conditions. We prove that such systems are well-posed either with sufficient smallness conditions or in the case of monotone couplings.

Phase spaces in field theory: Reduction vs. resolution
Aldo Riello, Michele Schiavina
https://arxiv.org/abs/2509.24450 https://arxiv.org/pdf/2509.24450

Phase spaces in field theory: Reduction vs. resolution
In this note we review the concept of phase space in classical field theory, discussing several variations on the basic notion, as well as the relation between them. In particular we will focus on the case where the field theory admits local (gauge) symmetry, in which case the physical phase space of the system emerges after a (usually singular) quotient with respect to the action of the symmetry group. We will highlight the symplectic and Poisson underpinnings of the reduction procedure that d…

An asymptotic field approach for the control of dipole emission in integrated structures
Vincenzo Macri', Alice Viola, Marco Liscidini
https://arxiv.org/abs/2509.24717 https…

An asymptotic field approach for the control of dipole emission in integrated structures
We present a general framework to model spontaneous emission in integrated photonic structures by exploiting quantization of the electromagnetic field in terms of asymptotic in/out modes. This approach allows for an efficient and physically meaningful calculation of the emission rate into each radiative channel of an arbitrary structure, without relying on approximations such as Lorentzian lineshapes or point-like system-bath coupling. We show that with this approach one can recover well-known …

The Influence of Uniform Magnetic Fields on Strong Field Gravitational Lensing by Kerr Black Holes
Amnish Vachher, Arun Kumar, Sushant G. Ghosh
https://arxiv.org/abs/2508.21100 …

The Influence of Uniform Magnetic Fields on Strong Field Gravitational Lensing by Kerr Black Holes
We investigate strong gravitational lensing using magnetized Kerr black holes (MKBHs), which are accurate Kerr-Bertotti-Robinson solutions for Kerr black holes in a uniform magnetic field with additional magnetic field strength $B$ apart from mass $M$ and spin $a$. Unlike previous magnetized spacetimes, the MKBH geometry is Petrov type D, devoid of conical singularities, allowing photons to reach asymptotic infinity and making the concept astrophysically feasible. We use the strong deflection l…

#NowPlaying Guided by Julian Cope’s “The Modern Antiquarian” and Aurbrey Burl’s “A Guide to the Stone Circles of Britain”, Llyn Y Cwn aka Ben Powell makes abyssal dark ambient soundscapes with site-specific field recordings from Wales and beyond. https://…

Llyn Y Cwn
Llyn Y Cwn is a field recording based dark ambient project with focus on atmosphere, immersion and environment. Ben Powell has been making electronic music since the 90s, drawing inspiration from his native North Wales landscape and his participation on Arctic research cruises. Llyn Y Cwn (Welsh - lake of the dogs) is a small lake at 715m in the Glyder mountain range of Snowdonia, North Wales.

Field-free superconducting diode effect of NbSe2 induced by strain
Jiajun Li, Minhao Zou, Fengyi Guo, Dai Zheng, Yiying Zhang, Yu Du, Fuwei Zhou, Heng Zhang, Wuyi Qi, Tianqi Wang, YeFan Yu, Rui Wang, Fucong Fei, Hao Geng, Fengqi Song
https://arxiv.org/abs/2509.23707

Field-free superconducting diode effect of NbSe2 induced by strain
Superconducting diodes, similar to semiconductor diodes, possess unidirectional superconducting properties and are the fundamental units for constructing superconducting quantum computing, thus attracting widespread attention. At present, most of superconducting diodes require an external magnetic field or proximity effect to break time reversal symmetry (TRS). The cases of intrinsic superconducting diode effect (SDE) under zero magnetic field are relatively scarce, and there are still some puz…

Approximation of the Range Ambiguity Function in Near-field Sensing Systems
Marcin Wachowiak, Andr\'e Bourdoux, Sofie Pollin
https://arxiv.org/abs/2509.22423 https://…

Approximation of the Range Ambiguity Function in Near-field Sensing Systems
This paper investigates the range ambiguity function of near-field systems where bandwidth and near-field beamfocusing jointly determine the resolution. First, the general matched filter ambiguity function is derived and the near-field array factors of different antenna array geometries are introduced. Next, the near-field ambiguity function is approximated as a product of the range-dependent near-field array factor and the ambiguity function due to the utilized bandwidth and waveform. An appro…

Unifying local and nonlocal corrosion frameworks: A convergent nonlocal extension of the KKS phase-field model
Christian J. Cyron, Marvin Fritz, Alexander Hermann, Tobias K\"oppl, Arman Shojaei, Stewart Silling
https://arxiv.org/abs/2509.23503

Unifying local and nonlocal corrosion frameworks: A convergent nonlocal extension of the KKS phase-field model
We introduce a nonlocal extension of the Kim-Kim-Suzuki (KKS) phase-field corrosion model aimed at bridging local and nonlocal corrosion modeling approaches, such as phase-field and peridynamic frameworks. In this formulation, classical gradient operators are replaced with integral operators defined over a finite interaction horizon, naturally embedding an intrinsic length scale that aligns with nonlocal theories like peridynamics. Under precise assumptions on function spaces and kernel functio…

A Review of Light-Field Imaging in Biomedical Sciences
Ruixuan Zhao, Xuanwen Hua, Woongjae Baek, Zhaoqiang Wang, Shu Jia, Liang Gao
https://arxiv.org/abs/2509.24191 https://

A Review of Light-Field Imaging in Biomedical Sciences
Light-field imaging is an emerging paradigm in biomedical optics, offering the unique ability to capture volumetric information in a single snapshot by encoding both the spatial and angular components of light. Unlike conventional three-dimensional (3D) imaging modalities that rely on mechanical or optical scanning, light-field imaging enables high-speed volumetric acquisition, making it particularly well-suited for capturing rapid biological dynamics. This review outlines the theoretical found…

Josh Blackwell named NFC Special Teams Player of the Week https://www.chicagobears.com/news/josh-blackwell-named-nfc-special-teams-player-of-the-week-4-raiders-2025-blocked-field-goal

Experimental Study of Magnetic Near-Field Microstrip Electronic Probe for PCB EMC Emission Measurement
Hongchuan Jia (NUIST), Fayu Wan (NUIST), Vladimir Mordachev (ICB), J\'er\^ome Rossignol (ICB), Glauco Fontagalland (PIMENT), Nour Murad (PIMENT), Blaise Ravelo (NUIST)
https://arxiv.org/abs/2509.24944

Experimental Study of Magnetic Near-Field Microstrip Electronic Probe for PCB EMC Emission Measurement
An experimental study on magnetic near-field (NF) scanning of printed circuit board (PCB) emission radiation is developed in this paper. The design and installation of the electromagnetic (EM) NF scanner is introduced. The test bed of magnetic NF emission in the microwave frequency range is described. The methodology of the microstrip magnetic NF probe is discussed. The probe calibration process was performed following the IEC 61967-1 NF scanning standard. The NF scanner functioning is tested w…

Crop Spirals: Re-thinking the field layout for future robotic agriculture
Lakshan Lavan, Lanojithan Thiyagarasa, Udara Muthugala, Rajitha de Silva
https://arxiv.org/abs/2509.25091

Crop Spirals: Re-thinking the field layout for future robotic agriculture
Conventional linear crop layouts, optimised for tractors, hinder robotic navigation with tight turns, long travel distances, and perceptual aliasing. We propose a robot-centric square spiral layout with a central tramline, enabling simpler motion and more efficient coverage. To exploit this geometry, we develop a navigation stack combining DH-ResNet18 waypoint regression, pixel-to-odometry mapping, A* planning, and model predictive control (MPC). In simulations, the spiral layout yields up to 2…

Structure-preserving numerical calculation of wave equation for a vector field
Takuya Tsuchiya
https://arxiv.org/abs/2509.26504 https://arxiv.org/pdf/2509.…

Structure-preserving numerical calculation of wave equation for a vector field
For the Proca equation, which is a wave equation for a vector field, we derive the canonical formulation including constraints from the Stueckelberg action and propose discrete equations with a structure-preserving scheme for conserving the constraints at the discrete level. Numerical simulations are performed using these discrete equations and other discrete equations with a standard scheme. We show the results obtained using the structure-preserving scheme and provide more accurate and stable…

The Landscape of problematic papers in the field of non-coding RNA
Ying Lou, Zhengyi Zhou, Guosheng Wang, Zhesi Shen, Menghui Li
https://arxiv.org/abs/2509.24511 https://…

The Landscape of problematic papers in the field of non-coding RNA
In recent years, the surge in retractions has been accompanied by numerous papers receiving comments that raise concerns about their reliability. The prevalence of problematic papers undermines the reliability of scientific research and threatens the foundation of evidence-based medicine. In this study,we focus on the field of non-coding RNA(ncRNA) as a case study to explore the typical characteristics of problematic papers from various perspectives, aiming to provide insights for addressing la…

Mean Field Type Control Problems Driven by Jump-diffusions
Alain Bensoussan, Ziyu Huang, Shanjian Tang, Sheung Chi Phillip Yam
https://arxiv.org/abs/2509.25614 https://

Mean Field Type Control Problems Driven by Jump-diffusions
In this article, we apply a probabilistic approach to study general mean field type control (MFTC) problems with jump-diffusions, and give the first global-in-time solution. We allow the drift coefficient $b$ and the diffusion coefficient $σ$ to nonlinearly depend on the state, distribution and control variables, and both can be unbounded and possibly degenerate; besides, the jump coefficient $γ$ is allowed to be non-constant. To tackle the non-linear and control-dependent diffusion $σ$, we …

Unidentified drone spotted over Norwegian gas field, police investigating: https://benborges.xyz/2025/09/30/unidentified-drone-spotted-over-norwegian.html

Displacement-Field-Driven Transition between Superconductivity and Valley Ferromagnetism in Transition Metal Dichalcogenides
Hyeok-Jun Yang, Yi-Ting Hsu
https://arxiv.org/abs/2508.21119

Displacement-Field-Driven Transition between Superconductivity and Valley Ferromagnetism in Transition Metal Dichalcogenides
Recent experiments have observed transitions between superconductivity and correlated magnetism in twisted bilayer WSe$_2$ near van-Hove fillings, driven by the displacement field $D$. Motivated by the experiment, we theoretically propose a general mechanism for a $D$-controlled transition between superconductivity and ferromagnetism in two-dimensional (2D) spin-orbit-coupled hexagonal systems, where van Hove singularities (VHS) lie on the Fermi level. We show that such a transition can be natu…

Electric-field control of pure spin photocurrent in germanene
Yaqing Yang, Zhen Zhang, Liwen Zhang, Liantuan Xiao, Suotang Jia, Jun Chen, Lei Zhang
https://arxiv.org/abs/2509.25691

Electric-field control of pure spin photocurrent in germanene
The electrical control of pure spin current remains a central challenge in spintronics, particularly in time-reversal symmetric systems composed of nonmagnetic elements, where spin and electric fields interact only indirectly. In this work, we develop a theoretical framework for electrically tuning pure spin photocurrent in two-dimensional materials with time-reversal symmetry via a gate electric field. Through theoretical analysis, we demonstrate that in systems with spin-orbit coupling and in…

Secant sheaves and Weil classes on abelian varieties
Eyal Markman
https://arxiv.org/abs/2509.23403 https://arxiv.org/pdf/2509.23403

Secant sheaves and Weil classes on abelian varieties
Let K be a CM-field, i.e., a totally complex quadratic extension of a totally real field F. Let X be a g-dimensional abelian variety admitting an algebra embedding of F into the rational endomorphisms of X. Let A be the product of X and Pic^0(X). We construct an embedding e of K into the rational endomorphism algebra of A associated to a choice of an F-blilinear polarization on X and a totally imaginary element q in K. We get the [K:Q]-dimensional subspace HW(A,e) of Hodge Weil classes in the d…

I Stolenly Swear That I Am Up to (No) Good: Design and Evaluation of Model Stealing Attacks
Daryna Oliynyk, Rudolf Mayer, Kathrin Grosse, Andreas Rauber
https://arxiv.org/abs/2508.21654

I Stolenly Swear That I Am Up to (No) Good: Design and Evaluation of Model Stealing Attacks
Model stealing attacks endanger the confidentiality of machine learning models offered as a service. Although these models are kept secret, a malicious party can query a model to label data samples and train their own substitute model, violating intellectual property. While novel attacks in the field are continually being published, their design and evaluations are not standardised, making it challenging to compare prior works and assess progress in the field. This paper is the first to address…

Dolphins WR Tyreek Hill carted off field with knee injury, taken to hospital for evaluation https://www.nfl.com/news/dolphins-wr-tyreek-hill-carted-off-field-with-knee-injury-taken-to-hospital-for-evaluation

#RIP Jane Goodall.
https://apnews.com/article/jane-goodall-obit-78698397851bc7634717206f7eba07b2

Jane Goodall, pioneering conservationist and primatologist, dies at 91
Jane Goodall, the conservationist renowned for her groundbreaking chimpanzee field research and globe-spanning environmental advocacy, has died. She was 91. The Jane Goodall Institute announced her death Wednesday, saying she died of natural causes while in California on a U.S. speaking tour. Goodall is best remembered for living among chimpanzees in Africa decades ago and documenting the animals using tools and doing other activities previously believed to be exclusive to humans. She also note…

what if i hit u over the head with a shovel n buried u in a wheat field while looking like this

Magnetic-field dependent vortex dynamics and critical currents in superconducting microwires with regular large-area perforation by pinholes
Dong Zhu, Ilya Charaev, Konstantin Ilin, Andreas Schilling
https://arxiv.org/abs/2509.23404

Magnetic-field dependent vortex dynamics and critical currents in superconducting microwires with regular large-area perforation by pinholes
We report on results of simulations and experiments of vortex states in superconducting micro-wires with periodic rectangular pinhole structures. The simulations have been performed by means of numerically solving the time-dependent Ginzburg-Landau (TDGL) equations. With increasing bias current and for different values of the external magnetic field applied normal to the structure plane, we observe at first a vortex free Meissner state, followed by a resistive vortex-flow mixed state and a stat…

Ramification groups of Galois extensions over local fields of positive characteristic with Galois group isomorphic to the group of unitriangular matrices
Koto Imai
https://arxiv.org/abs/2508.21312

Ramification groups of Galois extensions over local fields of positive characteristic with Galois group isomorphic to the group of unitriangular matrices
We study the ramification groups of finite Galois extensions $L/K$ of a complete discrete valuation field $K$ of equal characteristic $p>0$ with perfect residue field and Galois group isomorphic to the group of unitriangular matrices $UT_n(\mathbb{F}_p)$ over $\mathbb{F}_p$. We show that the upper ramification breaks can be expressed as a linear function of the valuation of the entries of a matrix directly constructed from the coefficients of a defining equation of the extension. This allows us…

Pro Picks: Chiefs will edge Bills on Harrison Butker's field goal as time expires https://www.foxsports.com/articles/nfl/pro-picks-chiefs-will-edge-bills-on-harrison-butkers-field-goal-as-time-expires

A federal judge Thursday ordered the person at the center of much of Chicago’s enforcement,
Border Patrol Commander Gregory Bovino,
to appear for a deposition to explain federal agents’ use of tear gas and other less lethal weapons against protesters who have taken to the streets to oppose the Trump administration’s immigration crackdown.
Meanwhile, Homeland Security Secretary Kristi Noem is replacing ICE leadership at half the country’s field offices with Border Patrol off…

Chicago’s Militarized Immigration Raids “Coming to Other Cities” as Trump Plans 10,000-Bed Jails
Illinois Governor JB Pritzker is calling for federal agents to pause immigration enforcement in the Chicago area until after Halloween, amid widespread condemnation of violent arrests and confrontations with residents. Meanwhile, the person at the center of much of Chicago’s enforcement, Border Patrol chief Gregory Bovino, did a five-hour deposition Thursday in a case challenging federal agents’ treatment of protesters, journalists, children and immigrants. Bovino is “in charge of the Chi…

Field-theoretical form of the molecular dynamics method in condensed matter physics: relativistic quantum statistical thermodynamics
A. Yu. Zakharov
https://arxiv.org/abs/2509.24082

Field-theoretical form of the molecular dynamics method in condensed matter physics: relativistic quantum statistical thermodynamics
The principles of microscopic foundation of thermodynamics within the framework of relativistic quantum theory have been formulated

On the Implementation Security of Twin-Field Quantum Key Distribution using Optical Injection Locking
Sergio Ju\'arez, Alessandro Marcomini, Mikhail Petrov, Robert I. Woodward, Toby J. Dowling, R. Mark Stevenson, Marcos Curty, Davide Rusca
https://arxiv.org/abs/2508.21763

On the Implementation Security of Twin-Field Quantum Key Distribution using Optical Injection Locking
Twin-Field Quantum Key Distribution (TF-QKD) has emerged as a leading quantum communication protocol, enabling secure key distribution over unprecedented distances by utilising coherent interference of quantum states. Optical Injection Locking (OIL) architectures have been used to simplify the precise phase and frequency stabilisation required by TF-QKD. In this work, we systematically analyse potential side-channels in OIL-based TF-QKD that can be introduced through the various optical degrees…

Improved reconstruction of the century-long solar magnetic field by incorporating morphological asymmetry in sunspots
Subhadip Pal, Gopal Hazra, Sudip Mandal
https://arxiv.org/abs/2509.23691

Improved reconstruction of the century-long solar magnetic field by incorporating morphological asymmetry in sunspots
Accurately modeling the solar magnetic field is important for understanding long-term solar activity and space weather, but it is challenging due to limited observations, especially near the poles. The Surface Flux Transport (SFT) model simulates how magnetic flux moves across the solar surface and contributes to the polar field, but it parametrizes emerged sunspots as simple symmetric bipolar regions and needs improvement by including more realistic sunspot features. In this study, we reconstr…

Spectral Flow Learning Theory: Finite-Sample Guarantees for Vector-Field Identification
Chi Ho Leung, Philip E. Par\'e
https://arxiv.org/abs/2509.25000 https://

Spectral Flow Learning Theory: Finite-Sample Guarantees for Vector-Field Identification
We study the identification of continuous-time vector fields from irregularly sampled trajectories. We introduce Spectral Flow Learning (SFL), which learns in a windowed flow space using a lag-linear label operator that aggregates lagged Koopman actions. We provide finite-sample high-probability (FS-HP) guarantees for the class of variable-step linear multistep methods (vLLM). The FS-HP rates are constructed using spectral regularization with qualification-controlled filters for flow predictors…

Trump's FBI appointee Kash Patel gave New Zealand officials 3D-printed guns illegal to possess under local laws
https://apnews.com/article/kash-patel-guns-new-zealand-fbi-d5747377f957d61645d47324bfaa1114

FBI boss Kash Patel gave New Zealand officials 3D-printed guns illegal to possess under local laws
On a visit to New Zealand, FBI Director Kash Patel gave the country’s police and spy bosses gifts of inoperable pistols that were illegal to possess under local gun laws and had to be destroyed. The plastic 3D-printed replica pistols were presented during Patel's visit in July to open the FBI’s first standalone field office in New Zealand. The country's law enforcement agencies told The Associated Press about the gifts and why they were illegal to possess Tuesday. New Zealand law treats ino…

I'm not sure if anyone got a penalty for this play in the Field Hockey game this weekend between the Big Red and the U Vermont Catamounts but I can say there's no game where I've seen people yell more at the refs
#photo #photography

Dark Signals in the Brain: Augment Brain Network Dynamics to the Complex-valued Field
Jiangnan Zhang, Chengyuan Qian, Wenlian Lu, Gustavo Deco, Weiyang Ding, Jianfeng Feng
https://arxiv.org/abs/2509.24715

Dark Signals in the Brain: Augment Brain Network Dynamics to the Complex-valued Field
Recordings of brain activity, such as functional MRI (fMRI), provide low-dimensional, indirect observations of neural dynamics evolving in high-dimensional, unobservable spaces. Embedding observed brain dynamics into a higher-dimensional representation may help reveal functional organization, but precisely how remains unclear. Hamiltonian mechanics suggests that, by introducing an additional dimension of conjugate momenta, the dynamical behaviour of a conservative system can be formulated in a …

Focusing the Axion Wind with Ferrite Flux Concentrators
Christina Gao, Yuxuan He, Yubo Mo, Peiran Yin
https://arxiv.org/abs/2509.24553 https://arxiv.org/pd…

Focusing the Axion Wind with Ferrite Flux Concentrators
Axion dark matter may couple to fermion spins through an effective oscillating magnetic field, the ``axion wind". Existing approaches for detecting axion wind via axion-electron coupling $g_{ae}$ face sensitivity limitations due to the extremely weak pseudomagnetic field generated, typically a few times $10^{-18}$ tesla for $g_{ae} \sim 10^{-10}$. We propose to use ferrimagnetic flux concentrators to amplify the pseudomagnetic field into a genuine magnetic field, which can then be measured usin…

@… Being a single user* server, I have the luxury of making up my rules on the spot (Captured in Mastodon’s Rules field as: “Don't do anything I wouldn't approve of.”)
So it’s a definite yes for me.
*My wife and one work colleague do have accounts, but rarely use them.

Finite entropy sums in quantum field theory
Mark Van Raamsdonk
https://arxiv.org/abs/2508.21276 https://arxiv.org/pdf/2508.21276

Finite entropy sums in quantum field theory
Entropies associated with spatial subsystems in conventional local quantum field theories are typically divergent when the spatial regions have boundaries. However, in certain linear combinations of the entropies for various subsystems, these divergences may cancel, giving finite quantities that provide information-theoretic data about the underlying state. In this note, we show that all such quantities can be written as linear combinations of three basic types of quantities: i) the entropy of …

The ARRL has a long online text band plan which they have condensed for HF into The Considerate Operator's Frequency Guide which is not really in a convenient form to print and carry with you into the field when operating portable

Optimal Matching Strategies in Two-sided Markets: A Mean Field Approach
Erhan Bayraktar, Dantong Chu, Bohan Li, Ho Man Tai
https://arxiv.org/abs/2509.26531 https://

Optimal Matching Strategies in Two-sided Markets: A Mean Field Approach
This paper develops a mean field game framework for dynamic two-sided matching markets, extending existing matching theory by integrating micro-macro dynamics in two-sided environments. Unlike traditional matching models focusing on static equilibrium or unilateral optimization, our framework simultaneously captures dynamic interactions and strategic behaviors of both market sides, as well as the equilibrium. We model two types of agents who meet each other via Poisson processes and make simult…

General Framework for Twisted Bilayer Photonic Crystal with Interlayer Coupling and Far-Field Response
Shupeng Xu, Dun Wang, Ritesh Agarwal
https://arxiv.org/abs/2509.23952 http…

General Framework for Twisted Bilayer Photonic Crystal with Interlayer Coupling and Far-Field Response
We develop a general theory for twisted bilayer photonic crystals that takes into account both far-field response and near-field coupling. The theory is based on the framework of a generalized Rayleigh-Schrödinger perturbation theory for non-Hermitian Hamiltonians. A universal form for interlayer coupling is derived, which relates the hopping strength to the Fourier transforms of the Wannier functions in the single layer photonic crystal. For low energy states at the K point in hexagonal latti…

On the Deployment of Multiple Radio Stripes for Large-Scale Near-Field RF Wireless Power Transfer
Amirhossein Azarbahram, Onel L. A. L\'opez, Petar Popovski, Matti Latva-aho
https://arxiv.org/abs/2508.21640

On the Deployment of Multiple Radio Stripes for Large-Scale Near-Field RF Wireless Power Transfer
This paper investigates the deployment of radio stripe systems for indoor radio-frequency (RF) wireless power transfer (WPT) in line-of-sight near-field scenarios. The focus is on environments where energy demand is concentrated in specific areas, referred to as 'hotspots', spatial zones with higher user density or consistent energy requirements. We formulate a joint clustering and radio stripe deployment problem that aims to maximize the minimum received power across all hotspots. To address t…

Josh Blackwell's blocked field goal, defense's four takeaways bolster Bears in win over Raiders https://www.chicagobears.com/news/chicago-bears-blocked-field-goal-josh-blackwell-takeaways-tu…

Zigzag Codes Revisited: From Optimal Rebuilding to Small Skip Cost and Small Fields
Wenqin Zhang, Han Mao Kiah, Son Hoang Dau
https://arxiv.org/abs/2509.23090 https://

Zigzag Codes Revisited: From Optimal Rebuilding to Small Skip Cost and Small Fields
We revisit zigzag array codes, a family of MDS codes known for achieving optimal access and optimal rebuilding ratio in single-node repair. In this work, we endow zigzag codes with two new properties: small field size and low skip cost. First, we prove that when the row-indexing group is $\mathcal{G} = \mathbb{Z}_2^m$ and the field has characteristic two, explicit coefficients over any field with $|\mathcal{F}|\ge N$ guarantee the MDS property, thereby decoupling the dependence among …

Peculiarities of spin dynamics excitation by magnetic field of a high-frequency electromagnetic pulse
Nika Gribova, Anatoly Zvezdin, Vladimir Belotelov
https://arxiv.org/abs/2509.26528

Peculiarities of spin dynamics excitation by magnetic field of a high-frequency electromagnetic pulse
Terahertz (THz) electromagnetic pulses offer a promising route for the ultrafast manipulation of magnetization in ferromagnetic materials. While previous studies have demonstrated the excitation of spin dynamics using linearly polarized THz fields, the role of circular polarization and the effects of rapidly oscillating, time-dependent field profiles remained insufficiently understood. We have developed a unified theoretical framework for describing the excitation of spin precession via Zeeman …

Members of Brown's Men Soccer team look to the right at last week's game at Berman Field
#photo #photography #sports

Renormalization Group Running of CPT Operators In Lorentz-Violating Quantum Field Theory
Brett Altschul
https://arxiv.org/abs/2509.25488 https://arxiv.org/…

Renormalization Group Running of CPT Operators In Lorentz-Violating Quantum Field Theory
In conventional relativistic quantum field theory, the discrete operators C, P, and T are matrix operators with no renormalization scale dependence. However, in a Lorentz-violating theory with a fermion $f^μ$ term in the action, these operators may acquire nontrivial renormalization group behavior. Because the $f^μ$ term may actually be exchanged in the action for an equivalent $c^{νμ}$ term, the scale dependence depends explicitly on the renormalization scheme, even at one-loop order. The …

Secant sheaves on abelian n-folds with real multiplication and Weil classes on abelian 2n-folds with complex multiplication
Eyal Markman
https://arxiv.org/abs/2509.23079 https:/…

Secant sheaves on abelian n-folds with real multiplication and Weil classes on abelian 2n-folds with complex multiplication
Let K be a CM-field, i.e., a totally complex quadratic extension of a totally real field F. Let X be a g-dimensional abelian variety admitting an algebra embedding of F into the rational endomorphisms End_Q(X) of X. Let A be the product of X and Pic^0(X). We construct an embedding e of K into End_Q(A) associated to a choice of an F-bilinear polarization h on X and a purely imaginary element q in K. We get the [K:Q]-dimensional subspace HW(A,e) of Hodge Weil classes in the d-th cohomology of A, …

Nonlocal effective field theory and its applications
P. Wang, Zhengyang Gao, Fangcheng He, Chueng-Ryong Ji, W. Melnitchouk, Y. Salamu
https://arxiv.org/abs/2509.25657 https://…

Nonlocal effective field theory and its applications
We review recent applications of nonlocal effective field theory, focusing in particular on nonlocal chiral effective theory and nonlocal quantum electrodynamics (QED), as well as an extension of nonlocal effective theory to curved spacetime. For the chiral effective theory, we discuss the calculation of generalized parton distributions (GPDs) of the nucleon at nonzero skewness, along with the corresponding gravitational (or mechanical) form factors, within the convolution framework. In the QED…

The Carlitz module and a differential Ax-Lindemann-Weierstrass theorem for the Euler gamma function
Lucia Di Vizio, Federico Pellarin
https://arxiv.org/abs/2508.21237 https://…

The Carlitz module and a differential Ax-Lindemann-Weierstrass theorem for the Euler gamma function
We prove an Ax-Lindemann-Weierstrass differential transcendence result for Euler's gamma function, namely that the functions $Γ(ν-ζ_1(ν)),\dots,Γ(ν-ζ_n(ν))$ are differentially independent over the field of rational functions in the variable $ν$, with coefficients in the field $k$ of $1$-periodic meromorphic functions over $\mathbb C$, as soon as $ζ_1,\dots,ζ_n$ determine a set of algebraic functions over $k$, stable by conjugation and pairwise distinct modulo $\mathbb Z$. \par To pro…

Tyreek Hill injury: Dolphins WR carted off field after gruesome leg injury vs. Jets on 'Monday Night Football'

https://www.cbssports.com/nfl/news/…

Measurement and preparation protocols for quantum field theory on curved spacetimes
Christopher J. Fewster
https://arxiv.org/abs/2508.21426 https://arxiv.o…

Measurement and preparation protocols for quantum field theory on curved spacetimes
In this conference proceedings contribution, I describe work in progress concerning two problems in the measurement theory of quantum fields. First, it is proved that all local observables can be obtained from local measurement schemes. Second, I describe a protocol for preparing a Hadamard local product state of given Hadamard states relative to the local algebras of specified spacelike separated regions.

Constraining the helium-to-metal enrichment ratio $\Delta Y/\Delta Z$ from nearby field stars using Gaia DR3 photometry
N. Ricci, G. Valle, M. Dell'Omodarme, P. G. Prada Moroni, S. Degl'Innocenti
https://arxiv.org/abs/2509.24376

Constraining the helium-to-metal enrichment ratio $ΔY/ΔZ$ from nearby field stars using Gaia DR3 photometry
We investigate the feasibility of accurately determining the helium-to-metal enrichment ratio, $ΔY/ΔZ$, from Gaia DR3 photometry for nearby low-mass main sequence field stars. We selected a sample of 2770 nearby MS stars from the Gaia DR3 catalogue, covering a Gaia $M_G$ absolute magnitude range of 6.0 to 6.8 mag. We computed a dense grid of isochrones, with $ΔY/ΔZ$ varying from 0.4 to 3.2. These models were then used to fit the observations using the SCEPtER pipeline. The fitted values ind…

Vector-valued Gaussian free field conditioned to avoid a ball: Entropic repulsion of the norm and Freezing of spins
Aleksandra Korzhenkova, Avelio Sep\'ulveda
https://arxiv.org/abs/2509.21538

Vector-valued Gaussian free field conditioned to avoid a ball: Entropic repulsion of the norm and Freezing of spins
We study the laws of the two-dimensional vector-valued Dirichlet Gaussian free field and its massive lattice counterpart, conditioned to avoid a ball at every site of a subdomain. We prove that, under this conditioning, the norm of the massless field exhibits entropic repulsion, while its angular components freeze at all mesoscopic scales. A key step in the analysis is showing that around any given point in the bulk of the range, the unconditioned field has no holes. In the massive case, the …

Quantum Optics and Quantum Electrodynamics of Strong Field Processes
Marcelo F. Ciappina, Misha Yu. Ivanov, Maciej Lewenstein, Javier Rivera-Dean, Philipp Stammer, Paraskevas Tzallas
https://arxiv.org/abs/2509.26602

Quantum Optics and Quantum Electrodynamics of Strong Field Processes
In its beginnings, the physics of intense laser-matter interactions was the physics of multiphoton processes. The theory was reduced then to high-order perturbation theory, while treating matter and light in a quantum manner. With the advent of chirped pulse amplification developed by D. Strickland and G. Mourou, which enabled generation of ultra-intense, ultra-short, coherent laser pulses, the need for a quantum electrodynamics description of electromagnetic (EM) fields practically ceased to e…

A Computational Perspective on NeuroAI and Synthetic Biological Intelligence
Dhruvik Patel, Md Sayed Tanveer, Jesus Gonzalez-Ferrer, Alon Loeffler, Brett J. Kagan, Mohammed A. Mostajo-Radji, Ge Wang
https://arxiv.org/abs/2509.23896

A Computational Perspective on NeuroAI and Synthetic Biological Intelligence
NeuroAI is an emerging field at the intersection of neuroscience and artificial intelligence, where insights from brain function guide the design of intelligent systems. A central area within this field is synthetic biological intelligence (SBI), which combines the adaptive learning properties of biological neural networks with engineered hardware and software. SBI systems provide a platform for modeling neural computation, developing biohybrid architectures, and enabling new forms of embodied …

Lectures on the Spinor and Twistor Formalism in 3D Conformal Field Theory
Dhruva K. S
https://arxiv.org/abs/2508.21633 https://arxiv.org/pdf/2508.21633

Lectures on the Spinor and Twistor Formalism in 3D Conformal Field Theory
These notes are based on my lectures given at $\text{ST}^4$ 2025 held at IISER Bhopal. We study the application of spinor and twistor methods to three dimensional conformal field theories in these notes. They are divided into three parts dealing with spinor helicity, twistors and super-twistors respectively. In the first part, we introduce the off-shell spinor helicity formalism and apply it in several contexts including double copy relations, connection to four dimensional scattering amplitude…

Josh Blackwell blocks field goal to preserve Bears' rally for 25-24 win over Raiders https://www.foxsports.com/articles/nfl/josh-blackwell-blocks-field-goal-to-preserve-bears-rally-for-2524-win-over-raiders

When will Jaydon Blue make his Cowboys debut? Injuries could force rookie RB onto field as soon as Week 5

https://www.cbssports.com/nfl/news/when-wi

Field hockey at the new Martha Dodson Field out past the East Hill Plaza -- Cornell Beat Vermont 3-1 in front of the largest crowd I've ever seen at a field hockey game. In the center are № 8 Ashley Plzak of the Big Red and № 15 Sophia Lefranc of the Catamounts, who won the US East Conference in 2024
#photo

Light propagation in 2PN approximation in the monopole and quadrupole field of a body at rest: The basic transformations
Sven Zschocke
https://arxiv.org/abs/2509.26164 https://

Light propagation in 2PN approximation in the monopole and quadrupole field of a body at rest: The basic transformations
Todays astrometry has reached the micro-arcsecond level in angular measurements of celestial objects. The next generations of astrometric facilities are aiming at the sub-micro-arcsecond scale. Sub-micro-arcsecond astrometry requires a considerable improvement in the theory of light propagation in the curved space-time of the solar system. In particular, it is indispensable to determine light trajectories to the second order of the post-Newtonian scheme, where the monopole and quadrupole struct…

$p$-adic hypoerbolicity for Shimura varieties and period images
Benjamin Bakker, Abhishek Oswal, Ananth N. Shankar, Zijian Yao
https://arxiv.org/abs/2509.25461 https://

$p$-adic hypoerbolicity for Shimura varieties and period images
We prove that Shimura varieties and geometric period images satisfy a $p$-adic extension property for large enough primes $p$. More precisely, let $\mathsf{D}^{\times}\subset \mathsf{D}$ denote the inclusion of the closed punctured unit disc in the closed unit disc. Let $X$ be either a Shimura variety or a geometric period image with torsion-free level structure. Let $F$ be a discretely valued $p$-adic field containing the number field of definition of $X$, where $p$ is a large enough prime. Th…

Ultra-narrow homogeneous linewidths of erbium-doped silica glass fibers at millikelvin temperatures: magnetic field and temperature dependence
Farhad Rasekh, Nasser Gohari Kamel, Mahdi Bornadel, Sourabh Kumar, Erhan Saglamyurek, Christoph Simon, Daniel Oblak
https://arxiv.org/abs/2509.23400

Ultra-narrow homogeneous linewidths of erbium-doped silica glass fibers at millikelvin temperatures: magnetic field and temperature dependence
Erbium-doped solids are promising candidates for fiber-based quantum networks due to their emission wavelength, which aligns with the telecom band over which optical fibers exhibit minimal loss. Among these, erbium-doped silica fiber (EDF) stands out for its availability, ease of use, and seamless integration with existing fiber-optic infrastructure. In this work, using the two-pulse photon-echo (2PPE) technique, we measured the homogeneous linewidth of the 4I13/2 <-> 4I15/2 optical transition …

Field-tuning of ultrafast magnetization fluctuations in Sm$_{0.7}$Er$_{0.3}$FeO$_{3}$
Marvin Alexander Weiss, Julius Schlegel, Daniel Ani\'c, Emil Steiner, Franz Stefan Herbst, Makoto Nakajima, Takayuki Kurihara, Alfred Leitenstorfer, Ulrich Nowak, Sebastian T. B. Goennenwein
https://arxiv.org/abs/2509.26084

Field-tuning of ultrafast magnetization fluctuations in Sm$_{0.7}$Er$_{0.3}$FeO$_{3}$
The properties of spin fluctuations in antiferromagnets are largely unexplored, in particular at ultrafast timescales. Here, we employ femtosecond noise correlation spectroscopy (FemNoC) to experimentally study magnetization fluctuations in the canted antiferromagnet Sm$_{0.7}$Er$_{0.3}$FeO$_{3}$ across its spin reorientation transition and under external magnetic fields. By comparing our measurements to atomistic spin noise and Monte Carlo simulations, we find that the amplitude of the spin no…

CAN'T-MISS HIGHLIGHT: Josh Blackwell blocks Raiders field goal to preserve win for Bears https://www.chicagobears.com/video/can-t-miss-highlight-josh-blackwell-blocks-raiders-field-goal-to-preserve-win-for-bears

Supergranulation and poleward migration of the magnetic field at high latitudes of the Sun
L. P. Chitta, D. Calchetti, J. Hirzberger, G. Valori, E. R. Priest, S. K. Solanki, D. Berghmans, C. Verbeeck, E. Kraaikamp, K. Albert, T. Appourchaux, F. J. Bail\'en, L. R. Bellot Rubio, J. Blanco Rodr\'iguez, A. Feller, A. Gandorfer, L. Gizon, A. Lagg, A. Moreno Vacas, D. Orozco Su\'arez, J. Schou, U. Sch\"uhle, J. Sinjan, H. Strecker, R. Volkmer, J. Woch, X. Li, T. Oba, A. Ulya…

Supergranulation and poleward migration of the magnetic field at high latitudes of the Sun
Magnetoconvection at the solar surface governs the dynamics in the upper solar atmosphere and sustains the heliosphere. Properties of this fundamental process are poorly described near the solar poles. Here we report the first out-of-ecliptic remote-sensing observations of the south pole of the Sun from a high-latitude campaign of the Solar Orbiter spacecraft which reveal spatial and temporal evolution of supergranular convective cells. The supergranular cells have spatial scales of 20--40\,Mm.…

№ 21 Sophia Grimm of the University of Vermont Clashes with № 19 Delaney Keegan of the Big Red at the second game played at the new Field Hockey Field
#photo #photography #sports

'No, no, it was an optical illusion': How the NFL shut down a field goal controversy https://www.espn.com/nfl/story/_/id/46768952/nfl-london-field-goal-camera-wire-minnesota-vikings-reichard

High Energy Particle Production from Proton Synchrotron Radiation in Strong Magnetic Fields in Relativistic Quantum Field Theory
Tomoyuki Maruyama, A. Baha Balantekin, Myung-Ki Cheoun, Akira Dohi, Ryo Higuch, Toshitaka Kajino, Grant J. Mathews
https://arxiv.org/abs/2509.24366

High Energy Particle Production from Proton Synchrotron Radiation in Strong Magnetic Fields in Relativistic Quantum Field Theory
We investigate photon, pion, and rho-meson production from proton synchrotron radiation in the presence of strong magnetic fields. The proton decay widths and the luminosities of the emitted particles are calculated within a relativistic quantum framework that incorporates Landau quantization. A scaling rule is derived for the transition probability between different Landau levels. This allows an evaluation of transitions for extremely high Landau numbers exceeding $10^{15}$. Furthermore, we ca…

Quantum Machine Learning for Optimizing Entanglement Distribution in Quantum Sensor Circuits
Laxmisha Ashok Attisara, Sathish Kumar
https://arxiv.org/abs/2508.21252 https://

Quantum Machine Learning for Optimizing Entanglement Distribution in Quantum Sensor Circuits
In the rapidly evolving field of quantum computing, optimizing quantum circuits for specific tasks is crucial for enhancing performance and efficiency. More recently, quantum sensing has become a distinct and rapidly growing branch of research within the area of quantum science and technology. The field is expected to provide new opportunities, especially regarding high sensitivity and precision. Entanglement is one of the key factors in achieving high sensitivity and measurement precision [3].…

Polymer Bianchi-I with polymer matter
Aleena Zulfiqar, Syed Moeez Hassan
https://arxiv.org/abs/2509.24586 https://arxiv.org/pdf/2509.24586

Polymer Bianchi-I with polymer matter
We analyze the effective dynamics of a polymer quantized homogeneous and anisotropic Bianchi-I universe coupled to a polymer quantized scalar field. We use a pressureless dust field as an internal clock, and work with the gravitational Misner variables. We find that for a consistent polymer quantization of the anisotropies, the volume variable has to be polymerized first, and that a choice of different polymer scales for the two leads to substantially different dynamics. We derive an effective …

Long-range minimal models
Connor Behan, Dario Benedetti, Fanny Eustachon, Edoardo Lauria
https://arxiv.org/abs/2509.26372 https://arxiv.org/pdf/2509.26372

Long-range minimal models
We study a class of nonlocal conformal field theories in two dimensions which are obtained as deformations of the Virasoro minimal models. The construction proceeds by coupling a relevant primary operator $ϕ_{r,s}$ of the $m$-th minimal model to a generalized free field, in such a way that the interaction term has scaling dimension $2-δ$. Flowing to the infrared, we reach a new class of CFTs that we call long-range minimal models. In the case $r=s=2$, the resulting line of fixed points, param…

Buccaneers kicker smashes 65-yard field goal: Chase McLaughlin ties NFL record for second-longest kick

https://www.cbssports.com/nfl/news/buccane

Neutrino quantum decoherence in a fluctuating ALPs field
Alexey Lichkunov, Konstantin Stankevich, Alexander Studenikin
https://arxiv.org/abs/2509.22554 https://

Neutrino quantum decoherence in a fluctuating ALPs field
The evolution of neutrinos in a fluctuating classical axion-like particles (ALPs) field is investigated. The equation for the neutrino density matrix is obtained in the Redfield form, and the corresponding dissipative matrix is derived. Estimates on the correlation time of the ALPs field fluctuations and on the ALP-neutrino coupling constants are obtained using the limits on the decoherence parameter determined from the analysis of reactor neutrino experiments data.

Braneworlds in Einstein-Scalar-Gauss-Bonnet gravity
Jos\'e Euclides G. Silva, Leandro A. Lessa, Roberto V. Maluf
https://arxiv.org/abs/2508.21725 https://

Braneworlds in Einstein-Scalar-Gauss-Bonnet gravity
We explore the features of a thick braneworld model in five dimensions governed by a Einstein-Gauss-Bonnet gravity with a non-minimal coupling to a dynamical scalar field. We consider two possible scalar-GB coupling function $χ(ϕ)$, one parity-even and another parity-odd function of the scalar field $ϕ$. For both choices, the scalar-Gauss-Bonnet non-minimal coupling produces a warped asymptotically $AdS_5$ spacetime even in the absence of a bulk cosmological constant. Outside the brane core,…

Integrable Spherical Brane Model at Large $N$
Mohsen Gheisarieha, Ramtin M. Yazdi, Arash Arabi Ardehali
https://arxiv.org/abs/2509.23869 https://arxiv.org/…

Integrable Spherical Brane Model at Large $N$
We study one of the simplest integrable two-dimensional quantum field theories with a boundary: $N$ free non-compact scalars in the bulk, constrained non-linearly on the boundary to lie on an $(N-1)$-sphere of radius $1/\sqrt{g}$. The $N=1$ case reduces to the single-channel Kondo problem, while larger $N$ is analogous to multi-channel or higher-spin impurity scenarios. Adding a boundary magnetic field -- a linear boundary coupling to the scalars -- enriches the model's structure while preservi…

Scouting the long-snapper: Intel helped Bears block Raiders' kick, flip script on wild win https://www.espn.com/nfl/story/_/id/46419635/nfl-chicago-bears-field-goal-raiders

𝑅𝑢𝑑𝑏𝑒𝑐𝑘𝑖𝑎 field in front of my barn shot with the Laowa 9mm rectilinear fisheye
#flowers #bloomscrolling #rudbeckia

Note About Born-Infeld Inspired Gravity Coupled Non-Minimally to Scalar Fields and Eddington Gravity with Matter
J. Kluson
https://arxiv.org/abs/2509.25939 https://

Note About Born-Infeld Inspired Gravity Coupled Non-Minimally to Scalar Fields and Eddington Gravity with Matter
We study canonical formulation of Born-Infeld inspired gravity coupled non-minimally to scalar field. Then we propose form of Eddington Gravity coupled to collection of scalar fields whose canonical form is the same as Hamiltonian for General Relativity coupled minimally to scalar field.

Small $x$ behavior in QCD from maximal entanglement and conformal invariance
Sebastian Grieninger, Kun Hao, Dmitri E. Kharzeev, Vladimir Korepin
https://arxiv.org/abs/2508.21643

Small $x$ behavior in QCD from maximal entanglement and conformal invariance
Recent evidence suggests that, at small Bjorken $x$, QCD evolution drives the proton into a state of maximal entanglement. If the evolution kernel is assumed to be conformally invariant -- as is the case for the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equation -- we can describe it by a conformal field theory. Moreover, the central charge $c$ of the corresponding conformal field theory emerges as the key parameter governing the $x$-dependence of both the entanglement entropy and the structure func…

Noncommutative Landau problem in graphene: a gauge-invariant analysis with the Seiberg-Witten map
Aslam Halder
https://arxiv.org/abs/2509.23763 https://arx…

Noncommutative Landau problem in graphene: a gauge-invariant analysis with the Seiberg-Witten map
We investigate the relativistic quantum dynamics of amassless electron in graphene in a two-dimensional noncommutative (NC) plane under a constant background magnetic field. To address the issue of gauge invariance, we employ an effective massless NC Dirac field theory, incorporating the Seiberg-Witten (SW) map alongside the Moyal star product. Using this framework, we derive a manifestly gauge-invariant Hamiltonian for a massless Dirac particle, which serves as the basis for studying the relat…

And tulips: I'll have photos of Field Hockey at the new field, Goldenrod, and Six Mile Creek tomorrow
#photo #photography #flowers

A Five-dimensional Kaluza-Klein Approach to Unimodular Gravity
J\'ulio C. Fabris, Richard Kerner
https://arxiv.org/abs/2509.24578 https://arxiv.org/pdf…

A Five-dimensional Kaluza-Klein Approach to Unimodular Gravity
In this article we present a possibility of imposing the unimodular condition within the 5-dimensional Kaluza-Klein theory including the scalar field. Unimodular gravity became an object of increasing interest in the late 80-ties; and was recently used in primordial Universe modeling with cosmological constant, in the context of the Brans-Dicke gravity including scalar field. A generalization of the unimodularity principle to the 5-dimensional Kaluza-Klein model was discussed in our recent pape…

Cosmic domain walls on a lattice: illusive effects of initial conditions
I. Dankovsky, S. Ramazanov, E. Babichev, D. Gorbunov, A. Vikman
https://arxiv.org/abs/2509.25367 https:/…

Cosmic domain walls on a lattice: illusive effects of initial conditions
Evolution of cosmic domain walls (DWs) settles to the scaling solution, which is often assumed to be independent of initial conditions. However, lattice simulations performed in this work reveal a clear dependence of the scaling DW area on the initial configuration of the sourcing scalar field, specifically, its infrared (IR) properties. Namely, the DW area grows as one suppresses IR modes in the initial scalar field spectrum. This growth is saturated, when the area parameter $ξ$ commonly used…

2026 NFL Draft All-Prospect team: NFL stars of tomorrow take the field as college football season kicks off

https://www.cbssports.com/nfl/draft/news…

Last Saturday had a busy sports calendar at Cornell -- men's and women's soccer played against Brown in Berman field surrounded by the best fall color
#photo #photography #sports

An $L$-function Approach to Two-Dimensional Conformal Field Theory
Eric Perlmutter
https://arxiv.org/abs/2509.21672 https://arxiv.org/pdf/2509.21672…

An $L$-function Approach to Two-Dimensional Conformal Field Theory
We introduce a framework for two-dimensional conformal field theory (CFT) in the language of analytic number theory. Attached to the torus partition function of every two-dimensional CFT is a self-dual, degree-4 $L$-function of root number $\varepsilon=1$, with a universal gamma factor determined by $SL(2,\mathbb{Z})$ and local conformal invariance. Due to the richness of CFT operator spectra, these are not, in general, standard $L$-functions. We explicate their analytic structure, exploring th…

Enhanced Axion-Photon Conversion via Seeded Photons instead of Resonant Cavities for Short-Pulse Axion Detection
Xiangyan An, Min Chen, Jianglai Liu, Zhengming Sheng, Jie Zhang
https://arxiv.org/abs/2509.21417

Enhanced Axion-Photon Conversion via Seeded Photons instead of Resonant Cavities for Short-Pulse Axion Detection
We propose a seeded axion-photon conversion scheme to enhance the sensitivity of light-shining-through-wall (LSW) experiments for axion detection, where the axions are generated from short pulse lasers and the usual resonant cavity is not applicable. By injecting a small, coherent seed electromagnetic field (EM field) into the axion-photon conversion region, the axion-induced EM field can constructively interfere with the seed field, amplifying the regenerated photon number beyond the unseeded …

Geometric Building Blocks of Effective Field Theory Amplitudes
Timothy Cohen, Xu-Xiang Li, Zhengkang Zhang
https://arxiv.org/abs/2509.20449 https://arxiv.o…

Geometric Building Blocks of Effective Field Theory Amplitudes
On-shell amplitudes are invariant under field redefinitions. Nonderivative field redefinitions have a natural interpretation as coordinate transformations on the target manifold. General field redefinitions, which may involve derivatives, can be viewed as coordinate transformations on the field configuration manifold. We present a unified perspective for the geometry of both the target manifold and the field configuration manifold for scalar effective field theories. In both cases, we identify …

Entanglement Hamiltonian for the massless Dirac field on a segment with an inhomogeneous background
Erik Tonni, Stefano Trezzi
https://arxiv.org/abs/2509.22182 https://

Entanglement Hamiltonian for the massless Dirac field on a segment with an inhomogeneous background
We study the entanglement Hamiltonian of an interval for the massless Dirac field in an inhomogeneous background on a segment where the same boundary condition at both its endpoints is imposed, and in its ground state. We focus on a class of metrics that are Weyl equivalent to the flat metric through a Weyl factor that depends only on the spatial coordinate. The explicit form of the entanglement Hamiltonian is written as the sum of a local and a bilocal term. The weight function of the local te…