Tootfinder

Increasing Value of Information Implies Separable Utility
Michel de Lara (CERMICS)
https://arxiv.org/abs/2510.11102 https://arxiv.org/pdf/2510.11102…

Increasing Value of Information Implies Separable Utility
We consider decision-making under incomplete information about an unknown state of nature. Utility acts (that is, utility vectors indexed by states of nature) and beliefs (probability distributions over the states of nature) are naturally paired by bilinear duality, giving the expected utility. With this pairing, an expected utility maximizer (DM) is characterized by a continuous closed convex comprehensive set of utility acts (c-utility act set). We show that DM M values information more than …

Euclid preparation. Cosmology Likelihood for Observables in Euclid (CLOE). 5. Extensions beyond the standard modelling of theoretical probes and systematic effects
Collaboration, Goh, Nouri-Zonoz, Pamuk, Ballardini, Bose, Ca\~nas-Herrera, Casas, Franco-Abell\'an, Ili\'c, Keil, Kunz, Le Brun, Lepori, Martinelli, Sakr, Sorrenti, Teixeira, Tutusaus, Blot, Bonici, Bonvin, Camera, Cardone, Carrilho, Di Domizio, Durrer, Farrens, Beauchamps, Joudaki, Moretti, Pezzotta, S\'anchez, …

Euclid preparation. Cosmology Likelihood for Observables in Euclid (CLOE). 5. Extensions beyond the standard modelling of theoretical probes and systematic effects
Euclid is expected to establish new state-of-the-art constraints on extensions beyond the standard LCDM cosmological model by measuring the positions and shapes of billions of galaxies. Specifically, its goal is to shed light on the nature of dark matter and dark energy. Achieving this requires developing and validating advanced statistical tools and theoretical prediction software capable of testing extensions of the LCDM model. In this work, we describe how the Euclid likelihood pipeline, Cos…

Thermal gravitational waves from warm inflation
Anupama B
https://arxiv.org/abs/2510.10727 https://arxiv.org/pdf/2510.10727

Thermal gravitational waves from warm inflation
For the first time, the possibility of generation of thermal gravitational waves from warm inflation is investigated with cosmic microwave background. Gravitons produced from the quantum fluctuations during warm inflation are found to carry the thermal features if they exist in a thermal squeezed vacuum state. Thermal squeezing reduces the amplitude of the BB mode angular power spectrum of CMB when compared with the conventional cold inflation. This work inspects the thermal nature of tensor po…

State of Europe’s environment not good: threats to nature and impacts of climate change top challenges https://www.eea.europa.eu/en/newsroom/news/state-of-europes-environment-2025
Europe must step up efforts to protect environment: Report

State of Europe’s environment not good: threats to nature and impacts of climate change top challenges
Significant progress has been made in reducing greenhouse gas emissions and air pollution, but the overall state of Europe’s environment is not good, especially its nature which continues to face degradation, overexploitation and biodiversity loss. The impacts of accelerating climate change are also an urgent challenge, according to the European Environment Agency’s (EEA) most comprehensive, ‘state of environment’ report, published today. The outlook for most environmental trends is co…

Emergence of the $\pi(1300)$ Resonance from Lattice QCD
Haobo Yan, Maxim Mai, Marco Garofalo, Yuchuan Feng, Michael D\"oring, Chuan Liu, Liuming Liu, Ulf-G. Mei{\ss}ner, Carsten Urbach
https://arxiv.org/abs/2510.09476

Emergence of the $π(1300)$ Resonance from Lattice QCD
The mass of the lightest hadron in nature, the pion, is one seventh of that of the nucleon, and one tenth of the mass of its first excited state, the $π(1300)$. This enormous energy difference opens an interesting window into the confinement of quarks and the structure of the lightest hadrons. In this work, we provide the first calculation of resonance parameters of the $π(1300)$ from lattice QCD. For this purpose, recently derived state-of-the-art tools are adapted and applied both in the co…

Quantum approximate optimization of bosonic finite-state systems
Shakib Daryanoosh
https://arxiv.org/abs/2510.05576 https://arxiv.org/pdf/2510.05576…

Quantum approximate optimization of bosonic finite-state systems
There exist numerous problems in nature inherently described by finite $D$-dimensional states. Formulating these problems for execution on qubit-based quantum hardware requires mapping the qudit Hilbert space to that of multiqubit which may be exponentially larger. To exclude the infeasible subspace, one common approach relies on penalizing the objective function. However, this strategy can be inefficient as the size of the illegitimate subspace grows. Here we propose to employ the Hamiltonian-…

Constrained Natural Language Action Planning for Resilient Embodied Systems
Grayson Byrd, Corban Rivera, Bethany Kemp, Meghan Booker, Aurora Schmidt, Celso M de Melo, Lalithkumar Seenivasan, Mathias Unberath
https://arxiv.org/abs/2510.06357

Constrained Natural Language Action Planning for Resilient Embodied Systems
Replicating human-level intelligence in the execution of embodied tasks remains challenging due to the unconstrained nature of real-world environments. Novel use of large language models (LLMs) for task planning seeks to address the previously intractable state/action space of complex planning tasks, but hallucinations limit their reliability, and thus, viability beyond a research context. Additionally, the prompt engineering required to achieve adequate system performance lacks transparency, a…

Testing the nature of GW200105 by probing the frequency evolution of eccentricity
Avinash Tiwari, Sajad A. Bhat, MD Arif Shaikh, Shashvath J. Kapaida
https://arxiv.org/abs/2509.26152

Testing the nature of GW200105 by probing the frequency evolution of eccentricity
GW200105 is a compact binary coalescence (CBC) event, consisting of a neutron star and a black hole, observed in LIGO-Virgo-KAGRA's (LVK's) third observing run (O3). Recent reanalyses of the event using state-of-the-art waveform models have claimed observation of signatures of an eccentric orbit. It has nevertheless been pointed out in the literature that certain physical or modified gravity effects could mimic eccentricity by producing a spurious non-zero eccentricity value, at a given referen…

I wonder how well the low-curiosity people incompetently running our mostly-idle government have understood the nature of who government helps the most.
HINT: If government help was mostly for the poor, we would not have both billionaires and homelessness.
Air traffic control is a state-socialist subsidy service. It exists to make commercial passenger and cargo airlines feasible, an unevenly-distributed benefit. Reducing capacity by 10% won't affect 90% of Americans.
…

Spectroscopic evidence of Kondo resonance in 3$d$ van der Waals ferromagnets
Deepali Sharma, Neeraj Bhatt, Asif Ali, Rajeswari Roy Chowdhury, Chandan Patra, Ravi Prakash Singh, Ravi Shankar Singh
https://arxiv.org/abs/2510.02697

Spectroscopic evidence of Kondo resonance in 3$d$ van der Waals ferromagnets
Two-dimensional van der Waals (vdW) ferromagnets drive the advancement in spintronic applications and enable the exploration of exotic magnetism in low-dimensional systems. The entanglement of dual $-$ localized and itinerant $-$ nature of electrons lies at the heart of the correlated electron systems giving rise to exotic ground state properties such as complex magnetism, heavy fermionic behavior, Kondo lattice formation, \textit{etc}. Through temperature-dependent electronic structure of vdW …

Testing Quantum Mechanics with Quantum Computers: Qubit Information Capacity
Tim Palmer
https://arxiv.org/abs/2510.02877 https://arxiv.org/pdf/2510.02877…

Testing Quantum Mechanics with Quantum Computers: Qubit Information Capacity
Motivated by John Wheeler's assertion that the continuum nature of Hilbert Space conceals the information-theoretic nature of the quantum wavefunction, a specific discretisation of complex Hilbert Space is proposed, leading to the notion of qubit information capacity $N_{\mathrm{max}}$: for any $N \ge N_{\mathrm{max}}$-qubit state, there is insufficient information in the $N$ qubits to allocate even one bit to each of the $2^{N+1}-2$ degrees of freedom demanded by complex Hilbert Space and henc…

Surface-Localized Magnetic Order in RuO2 Thin Films Revealed by Low-Energy Muon Probes
Akashdeep Akashdeep, Sachin Krishnia, Jae-Hyun Ha, Siyeon An, Maik Gaerner, Thomas Prokscha, Andreas Suter, Gianluca Janka, G\"unter Reiss, Timo Kuschel, Dong-Soo Han, Angelo Di Bernardo, Zaher Salman, Gerhard Jakob, Mathias Kl\"aui
https://arx…

Surface-Localized Magnetic Order in RuO2 Thin Films Revealed by Low-Energy Muon Probes
Ruthenium dioxide (RuO2) has recently emerged as a candidate altermagnet, yet its intrinsic magnetic ground state, particularly in thin films, remains debated. This study aims to clarify the nature and spatial extent of the magnetic order in RuO2 thin films grown under different conditions. Thin films of RuO2 with thicknesses of 30 nm and 33 nm are fabricated by pulsed laser deposition and sputtering onto TiO2(110) and Al2O3(1-102) substrates, respectively. Low-energy muon spin rotation/relaxat…

more and more, I think some people could really use an Emergency Management Hologram who just pops up and says "Please state the nature of this management emergency — actually nevermind, that won't change my advice: please go talk to a therapist, and then talk to this person you were about to tell me about"

The Golden State 🧡
#nature #outdoors

Anatomy of $f_0(980)$ via the signal $\pi\pi$ state in semileptonic $D_{s}$ decays
Shan Cheng, Ling-yun Dai, Jian-ming Shen, Shu-lei Zhang
https://arxiv.org/abs/2509.15659 https…

Anatomy of $f_0(980)$ via the signal $ππ$ state in semileptonic $D_{s}$ decays
The nature of light scalar mesons remains an unsolved puzzle in hadron physics, complicated by their large widths and controversial partonic structure. We propose to resolve this problem in a comprehensive study of isoscalar two-pion state ($[ππ]_{\rm S}$), the signal channel of $f_0(980)$, through its light-cone distribution amplitudes ($2π$DAs). A key finding is that charge parity forces the twist-3 $2π$DAs to be asymmetric in the momentum fractions of the quark and antiquark. This proper…

French Court of Auditors publishes report on state-owned nuclear power company EDF. Already facing €53 billion in debt, it will have to invest €460 billion in the coming 15 years: €90 billion in keeping its existing nuclear power plants running, €110 billion in new nuclear for France, €100 billion in grids. Much higher power prices and reducing international investments will be needed.

Le modèle économique d’Électricité de France (EDF)
Issue d’un Épic (Établissement public à caractère commercial) en situation de monopole sur le territoire français, de la production à la fourniture d’électricité, en passant par le transport et la distribution, EDF et ses filiales, exercent aujourd’hui leur activité de façon diversifiée dans le domaine de l’énergie et dans de nombreux pays. La Cour, sollicitée par la commission des finances de l’Assemblée nationale, publie un rapport sur son modèle économique et analys…

Dark Soliton Formation as a Dark-State Phase Transition in a Dissipative Superfluid Chain
Robbe Ceulemans, Samuel E. Begg, Matthew J. Davis, Michiel Wouters
https://arxiv.org/abs/2509.25707

Dark Soliton Formation as a Dark-State Phase Transition in a Dissipative Superfluid Chain
We identify and characterize a first-order dark-state phase transition between a discrete dark soliton and a uniform superfluid in a Bose-Hubbard chain with a single lossy site. Using classical-field (truncated-Wigner) simulations together with a Bogoliubov stability analysis, we show that the dark-state nature of the soliton suppresses fluctuations and shifts the critical point relative to the comparable phenomenon of optical bistability in driven-dissipative Kerr resonators. We then demonstra…

Untangling the Complex Nature of AGN Variability with Fairall 9
Scott Hagen (Durham-CEA), Chris Done (Durham-CEA), Edward M. Cackett (Wayne State), Ethan R. Partington (IA-FORTH), Rick Edelson (Eureka Scientific), Collin Lewin (MIT), Erin Kara (MIT), Jonathan Gelbord (Spectral Sciences Inc)
https://arxiv.org/abs/2509.25324

Untangling the Complex Nature of AGN Variability with Fairall 9
The accretion flow in AGN is not well understood, motivating intensive monitoring campaigns of multiwavelength variability to probe its structure. One of the best of these is the 3 year optical/UV/X-ray approximately daily monitoring campaign on Fairall\,9, a fairly typical moderate accretion rate AGN. The UV lightcurve shows a clear increase over $\sim 50$ days between years 1 and 2, strongly coherent with the X-ray lightcurve rise. This changes the average spectral energy distribution such th…

Today I went to Swift Creek Bluffs State Nature Preserve, just a few miles from my house, and stumped up to the ridge for some #POTA #HamRadio therapy. Tossed a 40m EFHW into the twigs and a 13' counterpoise wire over a branch of a nearby sapling, connected to my tiny QRP unun, and hoo…

Topical review: the nature of the ground state and possibility of a quantum spin liquid in 1T metal dichalcogenides
C. J. Butler, M. Naritsuka, T. Hanaguri
https://arxiv.org/abs/2509.17419

Topical review: the nature of the ground state and possibility of a quantum spin liquid in 1T metal dichalcogenides
The compounds 1T-TaX2 (X = S, Se) and 1T-NbSe2 have been considered as potential hosts of a quantum spin liquid phase. This is based on the widely held view that the Mott-Hubbard mechanism drives the insulating behaviour of its charge density wave ground state, resulting in localized spins, interacting antiferromagnetically, on a geometrically frustrated lattice. However this assumes layer-wise independent behaviour. A growing body of evidence shows not only that inter-layer interactions are ve…

Probing the Ground State of the Antiferromagnetic Heisenberg Model on the Kagome Lattice using Geometrically Informed Variational Quantum Eigensolver
Abdellah Tounsi, Nacer Eddine Belaloui, Abdelmouheymen Rabah Khamadja, Takei Eddine Fadi Lalaoui, Mohamed Messaoud Louamri, David E. Bernal Neira, Mohamed Taha Rouabah
https://arxiv.org/abs/2…

Probing the Ground State of the Antiferromagnetic Heisenberg Model on the Kagome Lattice using Geometrically Informed Variational Quantum Eigensolver
This work investigates the nature of the ground state of the antiferromagnetic Heisenberg model on minimal kagome cells -- a triangle and a star -- using the variational quantum eigensolver (VQE) algorithm on real quantum hardware. We demonstrate that the ground state preparation is achievable using a shallow hardware-efficient quantum circuit with a naturally Euclidean parameter space. Our custom ansatz is capable of accurately recovering essential properties such as the spin correlation terms…

An Automated Framework for Assessing Electric Vehicle Charging Impacts on a Campus Distribution Grid
Mohammadreza Iranpour, Sammy Hamed, Mohammad Rasoul Narimani, Silvia Carpitella, Kourosh Sedghisigarchi, Xudong Jia
https://arxiv.org/abs/2509.16218

An Automated Framework for Assessing Electric Vehicle Charging Impacts on a Campus Distribution Grid
This paper introduces a unified and automated framework designed to dynamically assess the impact of electric vehicle (EV) charging on distribution feeders and transformers at California State University, Northridge (CSUN). As EV adoption accelerates, the resulting increase in charging demand imposes additional stress on local power distribution systems. Moreover, the evolving nature of EV load profiles throughout the day necessitates detailed temporal analysis to identify peak loading conditio…

MARS: A Malignity-Aware Backdoor Defense in Federated Learning
Wei Wan, Yuxuan Ning, Zhicong Huang, Cheng Hong, Shengshan Hu, Ziqi Zhou, Yechao Zhang, Tianqing Zhu, Wanlei Zhou, Leo Yu Zhang
https://arxiv.org/abs/2509.20383

MARS: A Malignity-Aware Backdoor Defense in Federated Learning
Federated Learning (FL) is a distributed paradigm aimed at protecting participant data privacy by exchanging model parameters to achieve high-quality model training. However, this distributed nature also makes FL highly vulnerable to backdoor attacks. Notably, the recently proposed state-of-the-art (SOTA) attack, 3DFed (SP2023), uses an indicator mechanism to determine whether the backdoor models have been accepted by the defender and adaptively optimizes backdoor models, rendering existing def…

Shortcut Flow Matching for Speech Enhancement: Step-Invariant flows via single stage training
Naisong Zhou, Saisamarth Rajesh Phaye, Milos Cernak, Tijana Stojkovic, Andy Pearce, Andrea Cavallaro, Andy Harper
https://arxiv.org/abs/2509.21522

Shortcut Flow Matching for Speech Enhancement: Step-Invariant flows via single stage training
Diffusion-based generative models have achieved state-of-the-art performance for perceptual quality in speech enhancement (SE). However, their iterative nature requires numerous Neural Function Evaluations (NFEs), posing a challenge for real-time applications. On the contrary, flow matching offers a more efficient alternative by learning a direct vector field, enabling high-quality synthesis in just a few steps using deterministic ordinary differential equation~(ODE) solvers. We thus introduce …

Effective linear response in non-equilibrium anyonic systems
Gu Zhang, Igor Gornyi, Yuval Gefen
https://arxiv.org/abs/2510.03985 https://arxiv.org/pdf/2510…

Effective linear response in non-equilibrium anyonic systems
Linear response theory serves as a fundamental tool in the study of quantum transport, extensively employed to elucidate fundamental mechanisms related to the nature of the particles involved and the underlying symmetries. This framework is, however, limited to equilibrium or near-equilibrium conditions. Here, we develop an effective linear response theory designed to describe charge and thermal quantum transport, where the reference far-from-equilibrium stationary state comprises anyons formin…

Fluorescence-detected Wavepacket Interferometry reveals time-varying Exciton Relaxation Pathways in single Light-Harvesting Complexes
Stephan Wiesneth, Paul Recknagel, Alastair T. Gardiner, Richard Cogdell, Richard Hildner, J\"urgen K\"ohler
https://arxiv.org/abs/2509.14916

Fluorescence-detected Wavepacket Interferometry reveals time-varying Exciton Relaxation Pathways in single Light-Harvesting Complexes
Photosynthesis relies on efficient energy relaxation within the excited-state manifold of pigment-protein complexes. Since the protein scaffold is rather flexible, the resulting energetic and structural disorder gives rise to a complex excited-state energy level structure that fluctuates on all time scales. Although the impact of such fluctuations on relaxation processes is known, the precise exciton states involved in relaxation as well as the nature of the vibrational modes driving relaxation…

Polar Mounds on Strangeon Stars: the Neutrino Emission from Ultraluminous X-ray Pulsars
Hong-Bo Li, Shi-Jie Gao, Xiang-Dong Li, Ren-Xin Xu
https://arxiv.org/abs/2509.13732 https…

Polar Mounds on Strangeon Stars: the Neutrino Emission from Ultraluminous X-ray Pulsars
Ultraluminous X-ray pulsars (ULXPs) serve as unique astrophysical laboratories, offering critical insights into accretion physics under extreme conditions, such as strong magnetic fields and super-Eddington accretion rates. Additionally, the nature of pulsars, i.e., the equation of state of supranuclear matter, is still a matter of intense debate, basing on either conventional neutron stars or strange stars in the litterateurs. In this work, we investigate accretion columns of ULXPs based on th…

Deploying UDM Series in Real-Life Stuttered Speech Applications: A Clinical Evaluation Framework
Eric Zhang (SSHealth Team, AI for Healthcare Laboratory), Li Wei (SSHealth Team, AI for Healthcare Laboratory), Sarah Chen (SSHealth Team, AI for Healthcare Laboratory), Michael Wang (SSHealth Team, AI for Healthcare Laboratory)
https://arxiv.o…

Deploying UDM Series in Real-Life Stuttered Speech Applications: A Clinical Evaluation Framework
Stuttered and dysfluent speech detection systems have traditionally suffered from the trade-off between accuracy and clinical interpretability. While end-to-end deep learning models achieve high performance, their black-box nature limits clinical adoption. This paper looks at the Unconstrained Dysfluency Modeling (UDM) series-the current state-of-the-art framework developed by Berkeley that combines modular architecture, explicit phoneme alignment, and interpretable outputs for real-world clini…