Tootfinder

Holy fuck this guitar is my goddamn spirit animal
#guitar #gearsquad #PRS

“We spent more than four years in research and development, working closely with Herman to get everything exactly right”: PRS activates total shred mode for the launch of Herman Li’s feature-packed Chleo signature electric
Available in Orchid Dusk and Charcoal Purple Burst, limited to 200 units, we've got 13 unique tone combinations from its HSH Fishman pickups, a Gotoh floating vibrato and Eclipse Dragon inlays too

A very simple code to describe emotions or how does this work in real life?!?? ;)
```rust
#[allow(warnings)]
fn main() {
let mut emo: &str;
match 1 1 == 0b10 {
true => emo = "🤓",
_ => emo = "😵‍💫",
};
println!("Perception: {}", emo);
}
```
Play 🦀:

Super-resolving frequency measurement with mode-selective quantum memory
Shicheng Zhang, Aonan Zhang, Ilse Maillette de Buy Wenniger, Paul M. Burdekin, Steven Sagona-Stophel, Anindya Rastogi, Sarah E. Thomas, Ian A. Walmsley
https://arxiv.org/abs/2506.20514

Super-resolving frequency measurement with mode-selective quantum memory
High-precision optical frequency measurement is indispensable to modern science and technology, yet conventional spectroscopic techniques struggle to resolve spectral features narrower than their bandwidth. Here, we introduce a unique platform for super-resolving frequency estimation utilizing a mode-selective atomic Raman quantum memory implemented in warm cesium vapor. By precisely engineering the light-matter interaction, our memory coherently stores the optimal temporal mode with high fidel…

Characterizing the Observational Properties of the Sun's High-latitude m=1 Inertial Mode
Boyang Ding, Junwei Zhao, Ruizhu Chen, Matthias Waidele, Sushant S. Mahajan, Oana Vesa
https://arxiv.org/abs/2506.19634

Characterizing the Observational Properties of the Sun's High-latitude m=1 Inertial Mode
Low-m inertial modes have been recently discovered in the Sun's high-latitude regions. In this study, we characterize the observational properties of the m = 1 mode by analyzing time-distance subsurface flow maps. Synoptic flow maps, constructed from daily subsurface flow maps using a tracking rate corresponding to the rotation at latitude 65 degrees, are filtered in both the spherical harmonic and Fourier domains to retain only the m = 1 mode and its dominant frequencies. Our analysis reveals …

VFArch\=e: A Dual-Mode Framework for Locating Vulnerable Functions in Open-Source Software
Lyuye Zhang, Jian Zhang, Kaixuan Li, Chong Wang, Chengwei Liu, Jiahui Wu, Sen Chen, Yaowen Zheng, Yang Liu
https://arxiv.org/abs/2506.18050

VFArchē: A Dual-Mode Framework for Locating Vulnerable Functions in Open-Source Software
Software Composition Analysis (SCA) has become pivotal in addressing vulnerabilities inherent in software project dependencies. In particular, reachability analysis is increasingly used in Open-Source Software (OSS) projects to identify reachable vulnerabilities (e.g., CVEs) through call graphs, enabling a focus on exploitable risks. Performing reachability analysis typically requires the vulnerable function (VF) to track the call chains from downstream applications. However, such crucial infor…

$g$-mode oscillations of dark matter admixed neutron stars
Swarnim Shirke, Debarati Chatterjee, Prashanth Jaikumar
https://arxiv.org/abs/2506.18892 https:/…

$g$-mode oscillations of dark matter admixed neutron stars
We investigate $g$-mode oscillations in dark matter admixed neutron stars employing a relativistic mean field model to describe hadronic matter and a model for self-interacting fermionic dark matter motivated by the neutron decay anomaly. Following the construction of such admixed configurations, we derive the equilibrium and adiabatic speeds of sound therein, leading to a computation of the star's $g$-mode spectrum in the Cowling approximation. In particular, we explore the effect of dark matt…

Exploration-Exploitation Tradeoff in Universal Lossy Compression
Nir Weinberger, Ram Zamir
https://arxiv.org/abs/2506.20261 https://a…

Exploration-Exploitation Tradeoff in Universal Lossy Compression
Universal compression can learn the source and adapt to it either in a batch mode (forward adaptation), or in a sequential mode (backward adaptation). We recast the sequential mode as a multi-armed bandit problem, a fundamental model in reinforcement-learning, and study the trade-off between exploration and exploitation in the lossy compression case. We show that a previously proposed "natural type selection" scheme can be cast as a reconstruction-directed MAB algorithm, for sequential lossy co…

My special interest mode on, Genie, the feral child compilation, wild silence, locked memories, strange echoes, quiet chaos, restless shadow, untamed mind.
https://en.wikipedia.org/wiki/Genie_(feral_child)
Source: @…

Sundar Pichai says the Gemini app has 450M MAUs, with daily requests up 50% from Q1, AI Overviews has 2B MAUs, and AI Mode has 100M MAUs in the US and India (Sarah Perez/TechCrunch)
https://techcrunch.com/2025/07/23/googles-a…

Google's AI Overviews have 2B monthly users, AI Mode 100M in the US and India | TechCrunch
Google shared new stats about its AI features' adoption during its Q2 earnings.

Well I still suck at it, but thus far I'm really happy with the 1.0.1 build of FreeCAD. They simplified the build procedure so you don't have to keep bouncing between Sketch mode and Part mode. I even figured out how to cut multiple sketches into a part, and the auto-constraint feature is pretty useful.
Progress on this Heltec case is progressing slowly, but it's coming along.
As a side note, I'm starting to see why folks are installing transistors on their GPS …

FreeCAD: Your own 3D parametric modeler
FreeCAD, the open source 3D parametric modeler

Tails from the Bulk: Gravitational Decay in AdS$_5$
John R. V. Crump, Jorge E. Santos
https://arxiv.org/abs/2506.18991 https://arxiv.…

Tails from the Bulk: Gravitational Decay in AdS$_5$
We study gravitational perturbations of Schwarzschild-AdS black holes in $d = 5$ and identify a regime of late-time power-law decay for smooth initial data. Based on an analysis of the quasinormal mode spectrum, we predict and characterise this decay behaviour. We perform fully nonlinear numerical evolutions with long integration times that support the prediction and exhibit no signs of instability. Remarkably, the decay is modulated by a universal oscillatory pattern, consistent with subleadin…

🇺🇦 #NowPlaying on KEXP's #MorningShow
Depeche Mode:
🎵 The Things You Said
#DepecheMode
https://jeffreytice.bandcamp.com/track/depeche-mode-the-things-you-said-jeffrey-tice-chromatic-mix
https://open.spotify.com/track/5tb8T4WJ5SULuf8lNkVfEp

Enhanced Fault Ride-Through Grid Forming with Transient Synchronisation Stability and Current Saturation
Youcefa Brahim Elkhalil, Nima Tashakor, Davood Keshavarzi, Ehsan Asadi, Stefan Goetz
https://arxiv.org/abs/2506.19444

Enhanced Fault Ride-Through Grid Forming with Transient Synchronisation Stability and Current Saturation
During grid faults, grid-forming converters are typically suggested to switch from a voltage-source to a current-source mode to limit the current and protect the electronics. This transition has the potential for the converter to transiently lose synchronization due to such current saturation. Therefore, this paper proposes an alternative current saturation algorithm to improve transient synchronization stability during mode switching. The algorithm is designed for grid-forming converters to me…

physics_collab: Multilayer physicist collaborations (2015)
Two multiplex networks of coauthorships among the Pierre Auger Collaboration of physicists (2010-2012) and among researchers who have posted preprints on arXiv.org (all papers up to May 2014). Layers represent different categories of publication, and an edge's weight indicates the number of reports written by the authors. These layers are one-mode projections from the underlying author-paper bipartite network.
This n…

Low-Noise Operation of Stepped Frequency-Comb Sources Based on Phase-Code Mode-Locking
Tae-Shik Kim, Danielle J. Harper, Benjamin J. Vakoc
https://arxiv.org/abs/2506.18868

Low-Noise Operation of Stepped Frequency-Comb Sources Based on Phase-Code Mode-Locking
The phase-code mode-locked (PCML) laser provides a configurable frequency comb light source for circular-ranging optical coherence tomography systems (CR-OCT). However, prior implementations of PCML suffered from high relative intensity noise (RIN). In this work, we demonstrate that by configuring the output pulsewidth and pulse separation in relation to the linewidth of the intracavity Fabry-Perot etalon, low-noise operation can be achieved. We observed a more than ten-fold reduction in laser …

Enhanced Velocity-Adaptive Scheme: Joint Fair Access and Age of Information Optimization in Vehicular Networks
Xiao Xu, Qiong Wu, Pingyi Fan, Kezhi Wang, Nan Cheng, Wen Chen, Khaled B. Letaief
https://arxiv.org/abs/2507.18328

Enhanced Velocity-Adaptive Scheme: Joint Fair Access and Age of Information Optimization in Vehicular Networks
In this paper, we consider the fair access problem and the Age of Information (AoI) under 5G New Radio (NR) Vehicle-to-Infrastructure (V2I) Mode 2 in vehicular networks. Specifically, vehicles follow Mode 2 to communicate with Roadside Units (RSUs) to obtain accurate data for driving assistance.Nevertheless, vehicles often have different velocity when they are moving in adjacent lanes, leading to difference in RSU dwelltime and communication duration. This results in unfair access to network re…

Probing the Higgs boson CP properties in vector-boson fusion production in the $H\rightarrow\tau^ \tau^-$ channel with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2506.19395

Probing the Higgs boson CP properties in vector-boson fusion production in the $H\rightarrowτ^+τ^-$ channel with the ATLAS detector
The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two $τ$-leptons using 140 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV collected by the ATLAS experiment at the Large Hadron Collider. Results are obtained using the Optimal Observable method. CP-violating interactions between the Higgs boson and electroweak gauge bosons are considered in the effective field theory framework…

Worked around with DW Edit mode, however the response to a click on Save was unexpected:
> You’ve enabled HTTPS-Only Mode for enhanced security, and a HTTPS version of wiki.bsd.cafe is not available.

Multi-mode feedback cooling of the collective modes of a Bose-Einstein condensate
Ryan J. Thomas, Jordan A. McMahon, Zain Mehdi, Stuart S. Szigeti, Simon A. Haine, Samuel Legge, John D. Close, Joseph J. Hope
https://arxiv.org/abs/2506.19739

Multi-mode feedback cooling of the collective modes of a Bose-Einstein condensate
We experimentally demonstrate cavity-free feedback cooling of the three lowest-lying collective modes of a Bose-Einstein condensate in a prolate harmonic trap. Using shadowgraph imaging as an \textit{in situ} probe of the atomic density, we measure the time-dependent centers-of-mass and widths of the condensate in two dimensions and use these measurements to damp oscillations in the two visible dipole modes and the low-frequency quadrupole mode. By inducing oscillations in the condensate, we sh…

VLM-Empowered Multi-Mode System for Efficient and Safe Planetary Navigation
Sinuo Cheng, Ruyi Zhou, Wenhao Feng, Huaiguang Yang, Haibo Gao, Zongquan Deng, Liang Ding
https://arxiv.org/abs/2506.16703

VLM-Empowered Multi-Mode System for Efficient and Safe Planetary Navigation
The increasingly complex and diverse planetary exploration environment requires more adaptable and flexible rover navigation strategy. In this study, we propose a VLM-empowered multi-mode system to achieve efficient while safe autonomous navigation for planetary rovers. Vision-Language Model (VLM) is used to parse scene information by image inputs to achieve a human-level understanding of terrain complexity. Based on the complexity classification, the system switches to the most suitable naviga…

There’s more: the e-bike means I’m not planning to replace my venerable old car when it finally dies; we’ll become a one-car family.
AFAICT from my research, this is even more important for climate / pollution concerns than the mileage. Just the sunk carbon emissions cost of manufacturing any new car, EV or otherwise, is roughly equivalent to another ~10 years of driving the venerable old gas-powered Civic. 10 years!
If you’re going to be buying a car, buying an EV is better. But unless you’re putting massive mileage on it, there’s a pretty good chance that not buying •any• new car ever — just running the existing one into the ground and shifting primary transportation mode — is the even better choice.

Probing multi-band variability and mode switching in the candidate transitional millisecond pulsar 3FGL J1544.6-1125
Giulia Illiano, Francesco Coti Zelati, Arianna Miraval Zanon, Alessandro Papitto, Maria Cristina Baglio, Domitilla de Martino, Stefano Giarratana, Filippo Ambrosino, Francesco Carotenuto, Sergio Campana, Alessio Marino, Nanda Rea, Diego F. Torres, Marcello Giroletti, Thomas D. Russell, Christian Malacaria, Caterina Ballocco, Enrico Bozzo, Carlo Ferrigno, Riccardo La Plac…

Probing multi-band variability and mode switching in the candidate transitional millisecond pulsar 3FGL J1544.6-1125
We present the most extensive high-time resolution multi-band campaign to date on the candidate transitional millisecond pulsar (tMSP) 3FGL J1544.6-1125 in the sub-luminous disk state, with coordinated observations from the radio to the X-ray band. While XMM-Newton and NuSTAR X-ray light curves exhibit the characteristic high- and low-mode bimodality, the source faintness prevents firm evidence for similar bimodality in the ultraviolet and near-infrared light curves, presented here for the firs…

Detectors and Electronics for the CBM experiment at FAIR
Maksym Teklishyn (for the CBM Collaboration)
https://arxiv.org/abs/2506.20545 https://

Detectors and Electronics for the CBM experiment at FAIR
The Compressed Baryonic Matter (CBM) experiment is a next-generation heavy-ion experiment under development at the future FAIR facility in Darmstadt, Germany. It is designed to explore the QCD phase diagram at high net-baryon densities with unprecedented precision. Operating in fixed-target mode with a continuous beam of up to 11 AGeV for heavy ions and 26 GeV for protons, CBM will investigate rare probes such as multi-strange hyperons, hypernuclei, and dileptons, aiming to identify signatures …

MHD simulation of tilt instability during the dynamic FRC magnetic compression process
Yiming Ma, Ping Zhu, Bo Rao, Haolong Li
https://arxiv.org/abs/2506.20443

MHD simulation of tilt instability during the dynamic FRC magnetic compression process
The nonlinear evolution of the tilt instability in a field reversed configuration (FRC) during the dynamic magnetic compression process has been investigated using magnetohydrodynamic (MHD) simulations with the NIMROD code [C. R. Sovinec \textit{et al.}, J. Comput. Phys. \textbf{195}, 355 (2004)]. The tilt mode induces significant deformations in the linear growth phase and results in complete confinement loss of the FRC in the nonlinear phase, with no evidence of dynamic nonlinear stabilizatio…

Achieving 70 Gb/s Over A VCSEL-Based Optical Wireless Link Using A Multi-Mode Fiber-Coupled Receiver
Hossein Kazemi, Isaac N. O. Osahon, Nikolay Ledentsov Jr., Ilya Titkov, Nikolay Ledentsov, Harald Haas
https://arxiv.org/abs/2506.18864

Achieving 70 Gb/s Over A VCSEL-Based Optical Wireless Link Using A Multi-Mode Fiber-Coupled Receiver
In this paper, we demonstrate a laser-based optical wireless communication (OWC) system employing a 940 nm single-mode (SM) vertical cavity surface emitting laser (VCSEL) and a multi-mode (MM) fiber-coupled receiver, achieving a record data rate beyond 70 Gb/s, while the optical transmit power is below 5 mW. The use of a high speed fiber-optic photoreceiver avoids limiting the communication bandwidth by the receiver, enabling ultra-high capacity and energy-efficient light fidelity (LiFi) links …

Fine-Tuning Lowers Safety and Disrupts Evaluation Consistency
Kathleen C. Fraser, Hillary Dawkins, Isar Nejadgholi, Svetlana Kiritchenko
https://arxiv.org/abs/2506.17209

Fine-Tuning Lowers Safety and Disrupts Evaluation Consistency
Fine-tuning a general-purpose large language model (LLM) for a specific domain or task has become a routine procedure for ordinary users. However, fine-tuning is known to remove the safety alignment features of the model, even when the fine-tuning data does not contain any harmful content. We consider this to be a critical failure mode of LLMs due to the widespread uptake of fine-tuning, combined with the benign nature of the "attack". Most well-intentioned developers are likely unaware that th…

Just got a small space heater and damn it’s so much more comfortable here now
As a @… fan I’d prefer if my AC/heat pump supported heating mode, but welp it was already installed when I moved here so an electric heater will do it for the 2 days a year it’s actually cold enough for that to be useful here. Getting all that heat from the bedroom to the living room would be a problem anyway.
And I didn’t even need to make a fire hazard in order to use it since a 20A outlet was already around due to the coffee thingy, yay!
It’s been on for just around 40mins and it’s already sooo much better in here (the temp sensor is not on the side the heater is pointing to (the sofa) so it’ll take a while for it to reflect the change specially since this is a big room (kitchen dinner living), but just pointing the heater to where I’m at is enough to make it a comfortable temperature (and probably even way too hot in a bit)).
I’ve been wanting this for a while, but it never felt worth it bc we don’t really have many cold days here. Tho this year we got some more I think and today was specially cold (9~11°C) so I decided to just do it. Extra points bc it was available on fucking iFood of all places so it arrived less than an hour after I ordered it lmao.

Wenn ich irgendwo ein Wort lese, welches ich nicht verstehe, dann suche ich nach der Bedeutung. Bei Sachverhalten ist das auch so.
Wann ist das eigentlich aus der Mode gekommen?

Mixed-Mode In-Memory Computing: Towards High-Performance Logic Processing In A Memristive Crossbar Array
Nan Du, Ilia Polian, Christopher Bengel, Kefeng Li, Ziang Chen, Xianyue Zhao, Uwe Huebner, Li-Wei Chen, Feng Liu, Massimiliano Di Ventra, Stephan Menzel, Heidemarie Krueger
https://arxiv.org/abs/2506.19063

Mixed-Mode In-Memory Computing: Towards High-Performance Logic Processing In A Memristive Crossbar Array
In-memory computing is a promising alternative to traditional computer designs, as it helps overcome performance limits caused by the separation of memory and processing units. However, many current approaches struggle with unreliable device behavior, which affects data accuracy and efficiency. In this work, the authors present a new computing method that combines two types of operations,those based on electrical resistance and those based on voltage, within each memory cell. This design improv…

For all the shit I (rightfully) give Apple, I gotta say they deserve praise for how they implemented the new multitasking mode on iPadOS. Even on an iPad Mini you can absolutely do things more flexibly. I did a vertical split with a browser and irc a messenger app at the bottom, and it was perfectly comfortable and UI elements tended to fold away in ways that made sense.
Now, rotating the tablet maintained the orientation of the layout, and that messed a bit with the video that was …

Two years ago, I wrote a piece promoting the Fediverse to a Bosnian (and global) audience. Some of the key players in this movement were there to help me tell that story.
Since then, I feel like the Fediverse is growing. We have exciting new products like loops.
But for this to truly succeed, we need to stop autopilot mode and actually try. Also, I'm posting this on the wrong social network; I need to go to Bluesky :D
Give this article a read and share it with those int…

Fediverse: The archipelago of digital freedom
Something went sour on social media, and it became clear when billionaire Elon Musk took over the microblogging platform Twitter. His moves like firing engineers and teams who worked on ethical matters led to technical issues, a rise in discriminatory policies, denial of scientific achievements and intensified hate speech.

Asteroseismology with PBjam 2.0: measuring dipole mode frequencies in coupling regimes from main sequence to low-luminosity red giant stars
M. B. Nielsen, J. M. J. Ong, E. J. Hatt, G. R. Davies, W. J. Chaplin, G. T. Hookway, A. Stokholm, O. J. Scutt, M. N. Lund, R. A. Garc{\i}a
https://arxiv.org/abs/2506.20382

Asteroseismology with PBjam 2.0: measuring dipole mode frequencies in coupling regimes from main sequence to low-luminosity red giant stars
PBjam is an open-source software package for measuring mode frequencies of solar-like oscillators. These frequencies help constrain stellar evolution models to precisely estimate masses, radii, and ages of stars. The overall aim of PBjam is to simplify this process to the point where it may be done by non-experts or performed on thousands of stars with minimal interaction. The initial release of PBjam was restricted to only identifying modes of $\ell=0$ and $\ell=2$, since these are the simples…

Altruism and energy flow in dynamic beehive models
Zachary Nathan, Daniel DiPietro, Olivia J. Chu
https://arxiv.org/abs/2507.17923 https://arxiv.org/pdf/25…

Altruism and energy flow in dynamic beehive models
This work explores the relationship between altruism and the genetic system of arrhenotoky through an evolutionary game theory (EGT)-inspired lens, using a dynamic model of beehive populations consisting of three castes: workers, drones, and the queen. Arrhenotoky is a form of asexual reproduction in which unfertilized eggs become males while fertilized eggs develop into females, leading to unusual patterns of genetic relatedness between family members. This mode of reproduction occurs in insec…

I've a "old #astronomy software" side project and I'm looking for the early Mac software "StarMap" or "Star Map" from Bruce Webster.
So far my searches came up empty, but I'm not a specialist in old Mac software.
Does anyone have a copy of this app?
It's described in detail in a July 1985 BYTE article: #retrocomputing

Spectral-filtering-induced phase transition in passively mode-locked fiber lasers
Oumaima Ougrige, Florent Bessin, Charles Ciret, Herve Leblond, Fran\c{c}ois Sanchez
https://arxiv.org/abs/2506.18468

Spectral-filtering-induced phase transition in passively mode-locked fiber lasers
We investigate the effect of a tunable spectral filter on the dynamics of a passively mode-locked fiber laser in the anomalous dispersion regime. The results show that noise-like pulse emission evolves toward bound-state regime as the filter bandwidth is reduced. Thanks to the Shannon entropy applied to dispersive Fourier transform signals, it is demonstrated that the system undergoes a phase transition.

Investigation of the effects of superhydrophobic surface treatment on the dynamics of the flow in the near wake of a sphere using spatial dynamic mode decomposition
Shaun Davey, Callum Atkinson, Julio Soria
https://arxiv.org/abs/2507.17091

Investigation of the effects of superhydrophobic surface treatment on the dynamics of the flow in the near wake of a sphere using spatial dynamic mode decomposition
Viscous drag results from the fluid at a surface having zero relative velocity, a phenomenon known as the no-slip condition. Superhydrophobic surfaces, when submerged in water, trap a layer of air in their surface texture, partially replacing the liquid-solid interface with a liquid-gas interface. This air layer, called the plastron, results in partial slip at the surface, thereby reducing the viscous drag. In turbulent flows, large fluctuations in pressure and velocity can deplete or completel…

Imagen 4 is now available in the Gemini API and Google AI Studio, priced at $0.04 per image or $0.06 for "Ultra" mode that "precisely" follows user instructions (Google Developers Blog)
https://developers.googleblog.com/en/i

Imagen 4 is now available in the Gemini API and Google AI Studio- Google Developers Blog
Explore Imagen 4, Google's advanced text-to-image model, now in paid preview via Gemini API and Google AI Studio, offering improved text generation.

Asymptotic stability of the $2D$ temperature-dependent tropical climate model with the sharp decay rates
Hyunjin In, Dong-ha Kim, Junha Kim
https://arxiv.org/abs/2507.17197 http…

Asymptotic stability of the $2D$ temperature-dependent tropical climate model with the sharp decay rates
We investigate the asymptotic stability of a tropical climate model posed on $\bR^2$, with temperature-dependent diffusion in the barotropic mode $u$ and linear damping in the first baroclinic mode $v$. We consider two distinct cases for the barotropic component: one with linear damping and one without. For both cases, we prove the small data global existence of smooth solutions. Furthermore, we establish sharp temporal decay estimates for solutions in arbitrary Sobolev norms $H^m (\bR^2)$, $m …

Wave propagation in a model artery
Pierre Chantelot, Alexandre Delory, Claire Prada, Fabrice Lemoult
https://arxiv.org/abs/2507.17698 https://arxiv.org/pdf…

Wave propagation in a model artery
Fluid filled pipes are ubiquitous in both man-made constructions and living organisms. In the latter, biological pipes, such as arteries, have unique properties as their walls are made of soft, incompressible, highly deformable materials. In this article, we experimentally investigate wave propagation in a model artery: an elastomer strip coupled to a rigid water channel. We measure out-of-plane waves using synthetic Schlieren imaging, and evidence a single dispersive mode which resembles the p…

Importance of Non-Adiabatic Effects on Kohn Anomalies in 1D metals
Enrico Marazzi (IMCN Universit\'e catholique de Louvain Belgium), Samuel Ponc\'e (ETSF Universit\'e catholique de Louvain Belgium, WEL Research Institute Belgium), Jean-Christophe Charlier (IMCN Universit\'e catholique de Louvain Belgium), Gian-Marco Rignanese (ETSF Universit\'e catholique de Louvain Belgium, WEL Research Institute Belgium, School of Materials Science and Engineering Northwestern Pol…

Importance of Non-Adiabatic Effects on Kohn Anomalies in 1D metals
Kohn anomalies are kinks or dips in phonon dispersions which are pronounced in low-dimensional materials. We investigate the effects of non-adiabatic phonon self-energy on Kohn anomalies in one-dimensional metals by developing a model that analyzes how the adiabatic phonon frequency, electron effective mass, and electron-phonon coupling strength influence phonon mode renormalization. We introduce an electron-phonon coupling strength threshold for low-temperature system instability, providing ex…

Study of entanglement in Ne, Mg, and Si isotopic chains
Rohit M. Shinde, Praveen C. Srivastava
https://arxiv.org/abs/2506.19437 https://

Study of entanglement in Ne, Mg, and Si isotopic chains
In this article, we have presented the results for mode entanglement and its evolution in Ne, Mg, and Si isotopic chains. A detailed study has also been conducted on the role of nuclear forces with the assistance of the spin-tensor decomposition of two-body interaction into three components: central, spin-orbit, and tensor. This study can shed light on the high entanglement entropy observed for $N=Z$ nuclei and the importance of the tensor component on the proton-neutron entanglement entropy.

I'm sharing a presentation I gave at my workspace last week: "LLMs, GenAI... should we?"
Just for fun, I converted what was an ODP presentation into Markdown that my Jekyll blog could display as a regular article, then materialized the slides as such, and finally I added a slideshow feature.
I'm thinking of making a presenter mode where one window would display the slideshow, while another would display the presenter's notes, as well as the previous & ne…

On quasi-periodic decameter radio emission from Jupiter related to Ganymede
V. E. Shaposhnikov, V. V. Zaitsev
https://arxiv.org/abs/2506.18581 https://

On quasi-periodic decameter radio emission from Jupiter related to Ganymede
The paper discusses the possibility of implementing a plasma generation mechanism in a source of decameter radio emission associated with Ganymede and an explanation based on this mechanism of forming quasi-periodic sequences of bursts of this radiation. According to the discussed model, the registered quasi-periodic sequences of radiation pulses are a consequence of implementing in the source a pulsating mode of plasma wave conversion into extraordinary electromagnetic waves with a small refra…

I also made a mode where it makes random changes to your “filesystem”. If you set the probability high enough, this is effectively a “forever” mode.
You can do this with the `--modification-probability` flag. You can also speed up or slow down the progression with the `--latency` flag.
https://asciinema.org/a/729027

Uncovering the origin of bound state in the continuum
Zeyu Rao, Changling Zou, Yang Chen, Guangcan Guo, Ming Gong
https://arxiv.org/abs/2506.19678 https://…

Uncovering the origin of bound state in the continuum
Bound state in the continuum (BIC) and quasi-BIC represent a remarkable class of wave functions that disobey conventional intuition by exhibiting spatially localized modes embedded in the continuum spectrum. In recent years, these states have found important applications in interdisciplinary systems as a non-radiating mode with ultra-long lifetime. In these applications, a key question is how to convert a quasi-BIC into an exact BIC, and what the general criterion is for this transition. In thi…

Maximum-likelihood reprojections for reliable Koopman-based predictions and bifurcation analysis of parametric dynamical systems
Pieter van Goor, Robert Mahony, Manuel Schaller, Karl Worthmann
https://arxiv.org/abs/2506.17817

Maximum-likelihood reprojections for reliable Koopman-based predictions and bifurcation analysis of parametric dynamical systems
Koopman-based methods leverage a nonlinear lifting to enable linear regression techniques. Consequently, data generation, learning and prediction is performed through the lens of this lifting, giving rise to a nonlinear manifold that is invariant under the Koopman operator. In data-driven approximation such as Extended Dynamic Mode Decomposition, this invariance is typically lost due to the presence of (finite-data) approximation errors. In this work, we show that reprojections are crucial for …

Residual gauge theory for quanta of surface plasmons
Ken-ichi Sasaki
https://arxiv.org/abs/2506.18280 https://arxiv.org/pdf/2506.1828…

Residual gauge theory for quanta of surface plasmons
We develop a gauge-theoretical framework to investigate the quanta of surface plasmons. Our formulation, based on quantum electrodynamics, highlights the importance of residual gauge symmetry. We emphasize that residual gauge symmetry, which imposes constraint equations on physical states, is fundamentally linked to Joule heating. This framework is applied to metals, semiconductors, and quantum Hall states, suggesting the presence of a latent transverse electric mode and that the quanta have th…

Learning from ASTRI-Horn: products and applications of Variance data
Simone Iovenitti, Silvia Crestan, Teresa Mineo, Giuseppe Leto, Andrea Giuliani, Saverio Lombardi
https://arxiv.org/abs/2507.17392

Learning from ASTRI-Horn: products and applications of Variance data
In the context of the ASTRI MiniArray project (9 dual-mirror air Cherenkov telescopes being installed at the Observatorio del Teide in the Canary Islands), the ASTRI- Horn prototype was previously implemented in Italy (Sicily). It was a crucial test bench for establishing observation strategies, hardware upgrades, and software solutions. Specifically, during the winter 2022/2023 observing campaign, we implemented significant enhancements in using the so-called Variance mode, an auxiliary output…

Taylor-mode automatic differentiation for constructing molecular rovibrational Hamiltonian operators
Andrey Yachmenev, Emil Vogt, \'Alvaro Fern\'andez Corral, Yahya Saleh
https://arxiv.org/abs/2506.20129

Taylor-mode automatic differentiation for constructing molecular rovibrational Hamiltonian operators
We present an automated framework for constructing Taylor series expansions of rovibrational kinetic and potential energy operators for arbitrary molecules, internal coordinate systems, and molecular frame embedding conditions. Expressing operators in a sum-of-products form allows for computationally efficient evaluations of matrix elements in product basis sets. Our approach uses automatic differentiation tools from the Python machine learning ecosystem, particularly the JAX library, to effici…

Okay y'all. I think I could get most Expedition 33 in normal mode. But I just will not enjoy it. Switched to story mode and I can now progress without failing bosses because of one (or several) wrong dodges.
#videogames

Great to see that #TheEternaut it's available at @… !

Simulation of Vibronic Strong Coupling and Cavity-Modified Hydrogen Tunneling Dynamics
Scott M. Garner, Xiaosong Li, Sharon Hammes-Schiffer
https://arxiv.org/abs/2506.18647

Simulation of Vibronic Strong Coupling and Cavity-Modified Hydrogen Tunneling Dynamics
Polaritons have gained significant attention for the tantalizing possibility of modifying chemical properties and dynamics by coupling molecules to resonant cavity modes to create hybrid light-matter quantum states. Herein, we implement the semiclassical nuclear-electronic orbital time-dependent configuration interaction (NEO-TDCI) approach, which treats electrons and specified nuclei on the same quantum mechanical level, while treating the cavity mode classically. This ab initio dynamics appro…

netscience: Scientific collaborations in network science (2006)
A coauthorship network among scientists working on network science, from 2006. This network is a one-mode projection from the bipartite graph of authors and their scientific publications.
This network has 1589 nodes and 2742 edges.
Tags: Social, Collaboration, Weighted, Projection

Input-Driven Pushdown Automata with Translucent Input Letters
Martin Kutrib, Andreas Malcher, Matthias Wendlandt
https://arxiv.org/abs/2507.15310 https://

Input-Driven Pushdown Automata with Translucent Input Letters
Input-driven pushdown automata with translucent input letters are investigated. Here, the use of translucent input letters means that the input is processed in several sweeps and that, depending on the current state of the automaton, some input symbols are visible and can be processed, whereas some other symbols are invisible, and may be processed in another sweep. Additionally, the returning mode as well as the non-returning mode are considered, where in the former mode a new sweep must start …

Limits to Growth was right about collapse.
"This improved parameter set results in a World3 simulation that shows the same overshoot and collapse mode in the coming decade as the original business as usual scenario of the LtG standard run."
https://www.re…

Limits to Growth was right about collapse
The only question is whether we manage degrowth or just let it happen to us. This isn’t a neutral question. I know which one of these is worse.

Replaced article(s) found for cond-mat.supr-con. https://arxiv.org/list/cond-mat.supr-con/new
[1/1]:
- Chirped amplitude mode in photo-excited superconductors
Thomas Blommel, Jason Kaye, Yuta Murakami, Emanuel Gull, Denis Gole\v{z}

Abelian-Higgs vortices in the oscillating axion background
Naoya Kitajima, Shota Nakagawa
https://arxiv.org/abs/2507.16720 https://ar…

Abelian-Higgs vortices in the oscillating axion background
We study the dynamics of Abelian-Higgs vortices in the background of a coherently oscillating axion field. We show that the electric field is induced in the magnetic core of the vortex due to the axion-photon conversion. Moreover, because the electromagnetic field is confined in the vortex and excluded from the superconducting bulk regions due to the Meissner effect, the vortex tube can be regarded as a cylindrical cavity, and our numerical analysis shows that the resonant cavity mode (TM010 mo…

Speeding up thermalization and quantum state preparation through engineered quantum collisions
Sofia Sgroi, Salvatore Lorenzo, Luca Innocenti, Paolo A. Erdman, G. Massimo Palma, Mauro Paternostro
https://arxiv.org/abs/2506.20625

Speeding up thermalization and quantum state preparation through engineered quantum collisions
We realize fast thermalization and state preparation of a single mode cavity field using a collision model-like approach, where a sequence of qubits or three level system ancillae, sequentially interacting with the field, is engineered with a genetic algorithm approach. In contrast to optimal control techniques, there is no time-dependent system Hamiltonian control deployed and, in contrast to reservoir engineering, the engineered full system-environment dynamics is optimized, and the target is…

@… hi, when I save the change pictured below, in source mode, the change does not occur.
This bug is vaguely familiar (not a priority). Control-F5 is not a workaround …
#BSDCafe

Jet-mode Feedback in NGC 5972 - Insights from Resolved MUSE, GMRT, and VLA Observations: #Voorwerp Galaxy: https://aasnova.org/2025/07/18/written-in-the-gas-jet-feedback-in-a-voorwerp-galaxy/

Time-resolved p-mode oscillations for subgiant HD 142091 with NEID at WIYN
Jacob K. Luhn, Paul Robertson, Samuel Halverson, Arvind F. Gupta, Jared C. Siegel, Jason T. Wright, Eric B. Ford, Suvrath Mahadevan, Timothy R. Bedding, Jaime A. Alvarado-Montes, Chad F. Bender, Jiayin Dong, Fred Hearty, Sarah E. Logsdon, Andrew Monson, Michael W. McElwain, Joe P. Ninan, Jayadev Rajagopal, Arpita Roy, Christian Schwab, Gudmundur Stefansson, Daniel J. Stevens, Ryan C. Terrien, Sharon Xuesong Wang…

Time-resolved p-mode oscillations for subgiant HD 142091 with NEID at WIYN
Detections of Earth-analog planets in radial velocity observations are limited by stellar astrophysical variability occurring on a variety of timescales. Current state-of-the-art methods to disentangle potential planet signals from intrinsic stellar signals assume that stellar signals introduce asymmetries to the line profiles that can therefore be separated from the pure translational Doppler shifts of planets. Here, we examine this assumption using a time series of resolved stellar p-mode osc…

A General Framework for Linking Free and Forced Fluctuations via Koopmanism
Valerio Lucarini, Manuel Santos Gutierrez, John Moroney, Niccol\`o Zagli
https://arxiv.org/abs/2506.16446

A General Framework for Linking Free and Forced Fluctuations via Koopmanism
The link between forced and free fluctuations for nonequilibrium systems can be described via a generalized version of the celebrated fluctuation-dissipation theorem. The use of the formalism of the Koopman operator makes it possible to deliver an intepretable form of the response operators written as a sum of exponentially decaying terms, each associated one-to-one with a mode of natural variability of the system. Here we showcase on a stochastically forced version of the celebrated Lorenz '63…

⇢ What I find more surprising is that the 720 was actually a little too slow to run HP-VUE smoothly, which makes me wonder how it ran on 68K-based machines…
So people typically used either twm or HP-VUE Lite. There seems to be hardly any information online about the latter (apart from the documentation

⇢ What I find more surprising is that the 720 was actually a little too slow to run HP-VUE smoothly, which makes me wonder how it ran on 68K-based machines…
So people typically used either twm or HP-VUE Lite. There seems to be hardly any information online about the latter (apart from the documentation

Indirect multiphoton scattering between light and bulk plasmons via ultrafast free electrons
Ruoyu Chen, Jun Li, Qiaofei Pan, Dingguo Zheng, Bin Zhang, Ye Tian, Jianqi Li, Huaixin Yang, Yiming Pan
https://arxiv.org/abs/2507.18091

Indirect multiphoton scattering between light and bulk plasmons via ultrafast free electrons
Efficient coupling between light and bulk plasmons (BPs) remains a central challenge because of their inherent mode mismatch, limited penetration depth, and pronounced resonant energy mismatch between visible-range photons and BPs. In this work, we demonstrate that ultrafast free electrons can coherently mediate an interaction between electromagnetic fields and BPs at the nanoscale. An electron pulse emitted from the photocathode of ultrafast transmission electron microscope, functions as a qua…

From Few to Many Emitters Cavity QED: Energy Levels and Emission Spectra From Weak to Deep-Strong Coupling
Andrea Zappal\'a, Alberto Mercurio, Daniele Lamberto, Samuel Napoli, Omar Di Stefano, Salvatore Savasta
https://arxiv.org/abs/2506.18763

From Few to Many Emitters Cavity QED: Energy Levels and Emission Spectra From Weak to Deep-Strong Coupling
We present a systematic study of the properties of systems composed of $N$ two-level quantum emitters coupled to a single cavity mode, for light-matter interaction strengths ranging from the weak to the ultrastrong and deep-strong coupling regimes. Beginning with an analysis of the energy spectrum as a function of the light-matter coupling strength, we examine systems with varying numbers of emitters, from a pair to large collections, approaching the thermodynamic limit ($N \to \infty$). Additi…

Polarization ratios of turbulent Langmuir/$\mathcal{Z}$-mode waves generated by electron beams in magnetized solar wind plasmas
Francisco Javier Polanco-Rodr\'iguez, Catherine Krafft, Philippe Savoini
https://arxiv.org/abs/2506.18429

Polarization ratios of turbulent Langmuir/$\mathcal{Z}$-mode waves generated by electron beams in magnetized solar wind plasmas
The polarization ratios $F=|E_\perp|^2/|E|^2$ of beam-generated turbulent Langmuir/$\mathcal{Z}$-mode ($\mathcal{LZ}$) waves and electromagnetic emissions radiated at plasma frequency $ω_p$ by such sources are studied in weakly magnetized and randomly inhomogeneous plasmas owing to large-scale and long-term 2D/3V Particle-In-Cell simulations with parameters relevant to type III solar radio bursts. Statistical studies using waveforms recorded by virtual satellites are perfor…

Detecting Multiple Targets with Distributed Sensing and Communication in Cell-Free Massive MIMO
Zinat Behdad, Ozlem Tugfe Demir, Ki Won Sung, Cicek Cavdar
https://arxiv.org/abs/2507.17441

Detecting Multiple Targets with Distributed Sensing and Communication in Cell-Free Massive MIMO
This paper investigates multi-target detection in an integrated sensing and communication (ISAC) system within a cell-free massive MIMO (CF-mMIMO) framework. We adopt a user-centric approach for communication user equipments (UEs) and a distributed sensing approach for multi-target detection. A heuristic access point (AP) mode selection algorithm and a channel-aware distributed sensing scheme are proposed, where local measurements at receive APs (RX-APs) are weighted based on the received signa…

The Bode Plots for Sliding-Mode Control Design
Ulises P\'erez-Ventura
https://arxiv.org/abs/2507.16281 https://arxiv.org/pdf/2507…

The Bode Plots for Sliding-Mode Control Design
This paper develops a unified frequency-domain framework for the analysis of sliding-mode control systems, encompassing both discontinuous and Lipschitz-continuous implementations. Using describing function (DF) theory, closed-form expressions are derived for the amplitude and frequency of chattering oscillations, as well as equivalent gain (EG) models that enable closed-loop sensitivity analysis. The proposed methodology captures the influence of actuator dynamics, control parameters, and dist…

Stationary gravitational modes on Kerr-anti-de Sitter spacetimes
Olivier Graf
https://arxiv.org/abs/2506.18524 https://arxiv.org/pdf/…

Stationary gravitational modes on Kerr-anti-de Sitter spacetimes
We prove that, for any continuous path of Kerr-adS black hole parameters crossing the Hawking-Reall threshold, for all azimuthal number $|m|$ sufficiently large, there exists black hole parameters on the path such that the Teukolsky equations with conformal boundary conditions admit a non-trivial regular stationary (\emph{i.e.} with frequency $ω=mω_+$) mode solution. When $|m|$ goes to infinity, we show that these black hole parameters accumulate at the Hawking-Reall thres…

baseball: Baseball steroid use (2008)
Two networks representing steroid use among baseball players. First, a bipartite network of players and their steroid providers (of illegal performance-enhancing substances). Second, a one-mode projection of players, which are linked if they have a common supplier.
This network has 72 nodes and 1089 edges.
Tags: Social, Offline, Weighted, Projection

A Partially Massless Superconductor
Kurt Hinterbichler, Austin Joyce
https://arxiv.org/abs/2507.15932 https://arxiv.org/pdf/2507.1593…

A Partially Massless Superconductor
We describe a Higgs mechanism for the partially massless graviton. In order to do so, we first construct a covariant fracton-like effective field theory on de Sitter space that linearly realizes a dipolar shift symmetry. The global symmetry of this theory can be gauged by coupling it to a partially massless spin-2 gauge field. When the fractonic matter condenses, the dipole symmetry is spontaneously broken, the resulting Goldstone mode is a galileon and the partially massless graviton combines …

Preselection-Free Fiber-Optic Weak Measurement Sensing Framework with High-sensitivity
Zifu Su, Weiqian Zhao, Wanshou Sun, Hexiang Li, Yafei Yu, Jindong Wang
https://arxiv.org/abs/2507.18596

Preselection-Free Fiber-Optic Weak Measurement Sensing Framework with High-sensitivity
A preselection-free fiber-optic weak measurement sensing framework is proposed and experimentally verified in this paper. In view of the limitation that fiber-optic weak measurement require specific preselection, this scheme innovates theoretically and achieves high sensitivity sensing by optimizing the post-selection when single-mode optical fiber is used to generate random polarization state. The experimental results show that the sensing performance is two to three orders of magnitude higher…

Longitudinal-flexural wave mode conversion via periodically undulated waveguides with constant and graded profiles
Vinicius F. Dal Poggetto, Fabio Nistri, Nicola M. Pugno, Marco Miniaci, Antonio S. Gliozzi, Federico Bosia
https://arxiv.org/abs/2506.17656

Longitudinal-flexural wave mode conversion via periodically undulated waveguides with constant and graded profiles
Wave mode conversion allows to transform energy from one propagating wave type to another at a boundary where a change in material properties or geometry occurs. Converting longitudinal waves to flexural ones is of particular interest in elasticity due to their significant displacement amplitudes, facilitating detection at the surface for practical applications. Typically, the design of wave conversion devices requires (i) the use of locally resonant structures with a spacing much shorter than …

Angular-momentum-selective nanofocusing with Weyl semimetals
Marco Peluso, Alessandro De Martino, Reinhold Egger, Francesco Buccheri
https://arxiv.org/abs/2506.18503

Angular-momentum-selective nanofocusing with Weyl semimetals
We investigate the theory of surface plasmon polaritons on a magnetic Weyl semimetal conical tip. We show that the axion term in the effective electrodynamics modifies the surface plasmon polariton dispersion relation and allows all modes with a given sign of the orbital angular momentum to be focused at the end of the tip. This is in contrast with normal metals, in which only one mode can reach the end. We discuss how this orbital angular momentum nanofocusing expands the potential of technolo…

Leveraging NRTidalv3 to develop gravitational waveform models with higher-order modes for binary neutron star systems
Adrian Abac, Felip Ramis Vidal, Marta Colleoni, Anna Puecher, Alejandra Gonzalez, Tim Dietrich
https://arxiv.org/abs/2507.15426

Leveraging NRTidalv3 to develop gravitational waveform models with higher-order modes for binary neutron star systems
Accurate and reliable gravitational waveform models are crucial in determining the properties of compact binary mergers. In particular, next-generation gravitational-wave detectors will require more accurate waveforms to avoid biases in the analysis. In this work, we extend the recent NRTidalv3 model to account for higher-mode corrections in the tidal phase contributions for binary neutron star systems. The higher-mode, multipolar NRTidalv3 model is then attached to several binary-black-hole ba…

🇺🇦 #NowPlaying on KEXP's #VarietyMix
Depeche Mode:
🎵 Get the Balance Right
#DepecheMode
https://tudoparadjs.bandcamp.com/track/depeche-mode-get-the-balance-right-mix-master-remixes
https://open.spotify.com/track/0wORXH5RaIXOxKnyltuF9e

paris_transportation: Paris Transportation (2016)
A multiplex transportation network of Ile-de-France, jointly representing the road network, train network, and subway network. Nodes are intersections, rail stations or metro stations. Different modes of transportation are given by different layers. Within-layer edges represent direct transference by a particular mode of transportation, and between-layer edges represent the conjunction of those layers at that node.
This network ha…

UPDATES:
1. My site (https://innig.net/) now offers high-contrast theme if the OS / browser is set to high contrast mode. Works in both light and dark mode! Further accessibility improvements to come.

Google rolls out the ability to have back-and-forth voice conversations with AI Mode, available in the Google app by tapping the Live button (Aisha Malik/TechCrunch)
https://techcrunch.com/2025/06/18/googles-ai-mode-can-now-have-b…

Google's AI Mode can now have back-and-forth voice conversations | TechCrunch
Google is rolling out the ability for users to have a back-and-forth voice conversation with AI Mode.

Continuous operation of a coherent 3,000-qubit system
Neng-Chun Chiu, Elias C. Trapp, Jinen Guo, Mohamed H. Abobeih, Luke M. Stewart, Simon Hollerith, Pavel Stroganov, Marcin Kalinowski, Alexandra A. Geim, Simon J. Evered, Sophie H. Li, Lisa M. Peters, Dolev Bluvstein, Tout T. Wang, Markus Greiner, Vladan Vuleti\'c, Mikhail D. Lukin
https://

Continuous operation of a coherent 3,000-qubit system
Neutral atoms are a promising platform for quantum science, enabling advances in areas ranging from quantum simulations and computation to metrology, atomic clocks and quantum networking. While atom losses typically limit these systems to a pulsed mode, continuous operation could significantly enhance cycle rates, remove bottlenecks in metrology, and enable deep-circuit quantum evolution through quantum error correction. Here we demonstrate an experimental architecture for high-rate, continuous…

Observation of a phase transition in KTaO$_3$ induced by residual niobium impurities
Zijun C. Zhao, Jeremy F. Bourhill, Maxim Goryachev, Aleksey Sadekov, Michael E. Tobar
https://arxiv.org/abs/2507.16093

Observation of a phase transition in KTaO$_3$ induced by residual niobium impurities
We report the observation of a phase transition in a KTaO$_3$ crystal, corresponding to a paraelectric-to-ferroelectric transition. The crystal was placed inside a copper cavity to form a dielectric-loaded microwave cavity, and the transition was observed to occur near 134 K. As the cavity was cooled, the frequencies of both transverse electric and transverse magnetic resonant modes decreased (corresponding to an increase in permittivity). The mode frequencies converge at the transition tempera…

Far-field directionality control of coupled InP nanowire lasers
Lukas R. J\"ager (Friedrich Schiller University Jena, Australian National University), Wei Wen Wong (Australian National University), Carsten Ronning (Friedrich Schiller University Jena), Hark Hoe Tan (Australian National University)
https://arxiv.org/abs/2507.18416

Far-field directionality control of coupled InP nanowire lasers
Nanowire (NW) lasers hold great promise as compact, coherent on-chip light sources that are crucial for next-generation optical communication and imaging technologies. However, controlling their emission directionality has been hindered by the complexities of lasing mode engineering and fabrication. Here, we demonstrate spatially-engineered far-field emission from vertically emitting InP NW lasers by establishing precise control over the optical coupling between site-selective NWs, without rely…

Magnetic braking and dynamo evolution of $\beta$ Hydri
A. R. G. Santos, T. S. Metcalfe, O. Kochukhov, T. R. Ayres, R. Gafeira, T. L. Campante
https://arxiv.org/abs/2506.17049

Magnetic braking and dynamo evolution of $β$ Hydri
The evolution of magnetic braking and dynamo processes in subgiant stars is essential for understanding how these stars lose angular momentum. We investigate the magnetic braking and dynamo evolution of $β$ Hydri, a G-type subgiant, to test the hypothesis of weakened magnetic braking and the potential rejuvenation of large-scale magnetic fields. We analyze spectropolarimetric observations from HARPS (HARPSpol; polarimetric mode of High Accuracy Radial velocity Planet Searcher), and combine the…

Derivative-Agnostic Inference of Nonlinear Hybrid Systems
Hengzhi Yu, Bohan Ma, Mingshuai Chen, Jie An, Bin Gu, Naijun Zhan, Jianwei Yin
https://arxiv.org/abs/2507.16426

Derivative-Agnostic Inference of Nonlinear Hybrid Systems
This paper addresses the problem of inferring a hybrid automaton from a set of input-output traces of a hybrid system exhibiting discrete mode switching between continuously evolving dynamics. Existing approaches mainly adopt a derivative-based method where (i) the occurrence of mode switching is determined by a drastic variation in derivatives and (ii) the clustering of trace segments relies on signal similarity -- both subject to user-supplied thresholds. We present a derivative-agnostic appr…

Massless monopole-string-domain wall fermions and polyhedral vacuum fermions
Minoru Eto, Yuito Suzuki
https://arxiv.org/abs/2506.16765 https://

Massless monopole-string-domain wall fermions and polyhedral vacuum fermions
Fermion zero modes of Bogomol'nyi-Prasad-Sommerfield monopole-string-domain wall composites in three spatial dimensions are studied. We analytically solve the Dirac equation and prove the existence of one fermion zero mode. Depending on mass parameters of bosons/fermions in the model, the zero modes are localized either on the monopoles, strings or domain walls, which we call monopole-string-domain wall fermions. We also show that in special cases, the zero modes can be confined within a finite…

Numerical solution of the Lindblad master equation using the Runge-Kutta method implemented in Python
Leonardi Hern\'andez S\'anchez, Iv\'an Alejandro Bocanegra Garay, Ariel Flores Rosas, Ir\'an Ramos Prieto, Francisco Soto Eguibar, H\'ector Manuel Moya Cessa
https://arxiv.org/abs/2506.19238

Numerical solution of the Lindblad master equation using the Runge-Kutta method implemented in Python
The dynamics of open quantum systems is governed by the Lindblad master equation, which provides a consistent framework for incorporating environmental effects into the evolution of the system. Since exact solutions are rarely available, numerical methods become essential tools for analyzing such systems. This article presents a step-by-step implementation of the fourth-order Runge-Kutta method in Python to solve the Lindblad equation for a single quantized field mode subject to decay. A cohere…

Quasinormal modes and grey-body factors of axial gravitational perturbations of regular black holes in asymptotically safe gravity
Qi-Long Shi, Rui Wang, Wei Xiong, Peng-Cheng Li
https://arxiv.org/abs/2506.16217

Quasinormal modes and grey-body factors of axial gravitational perturbations of regular black holes in asymptotically safe gravity
In this paper, we present a detailed study of axial gravitational perturbations of the regular black hole solution in asymptotically safe gravity, as proposed in \cite{Bonanno:2023rzk}. We analyze the quasinormal mode (QNM) spectrum of this black hole using two numerical techniques: the Bernstein spectral method and the asymptotic iteration method (AIM). These approaches allow us to compute QNM frequencies with high accuracy, even for higher overtones. Our results show that the fundamental mode…

🇺🇦 #NowPlaying on KEXP's #DriveTime
Modest Mouse:
🎵 Float On
#ModestMouse
https://jalaya.bandcamp.com/track/modest-mouse-float-on-jalaya-remix
https://open.spotify.com/track/2lwwrWVKdf3LR9lbbhnr6R

Eigenmode-Guided Amplification via Spatiotemporal Active Acoustic Metamaterials
Wai Chun Wong, Greggory Chaplain, Jensen Li
https://arxiv.org/abs/2506.17687

Eigenmode-Guided Amplification via Spatiotemporal Active Acoustic Metamaterials
We present a spatiotemporal gain-loss framework for selective acoustic mode amplification illustrated using coupled Helmholtz resonators. In our scheme, the gain or loss in each resonator is determined by the amplitude in adjacent cavities, forming a non-Hermitian yet energy-conserving system. Our scheme enables the system to collapse toward the eigenstate of an effective linear Hamiltonian with the eigenvalue of largest imaginary part, serving as a fixed-point attractor. In dimer systems, we i…

Spontaneous breaking of baryon symmetry in strongly coupled three-dimensional theories
Ant\'on F. Faedo, Carlos Hoyos, Javier G. Subils
https://arxiv.org/abs/2507.15998

Spontaneous breaking of baryon symmetry in strongly coupled three-dimensional theories
We show that baryon number symmetry is spontaneously broken in a class of three-dimensional, ${\cal N}=1$ supersymmetric theories with a discrete mass spectrum. These models serve as lower-dimensional, less-supersymmetric analogs of the Klebanov-Strassler solution, sharing properties such as the presence of a cascade. The spontaneous symmetry breaking is evidenced by the appearance of a Goldstone mode, which corresponds to a vector fluctuation in the gravity dual.

Replaced article(s) found for eess.SY. https://arxiv.org/list/eess.SY/new
[2/2]:
- Electromagnetically Reconfigurable Fluid Antenna System for Wireless Communications: Design, Mode...
Wang, Zheng, Kotte, Rauf, Yang, Rahman, Al-Naffouri, Shamim

Mistral adds new features to its Le Chat chatbot, including a new "deep research" mode, native multilingual reasoning, and advanced image editing (Rebecca Bellan/TechCrunch)
https://techcrunch.com/2025/07/17/mistrals-…

Mistral's Le Chat chatbot gets a productivity push with new ‘deep research' mode | TechCrunch
French AI lab Mistral introduced a range of new features to its Le Chat chatbot on Thursday that bring it closer to the capabilities of rivals like OpenAI and Google. The new update includes a new “deep research” mode, native multilingual reasoning, and advanced image editing. 

Maximal optical chirality via mode coupling in bilayer metasurfaces
Brijesh Kumar, Ivan Toftul, Anshuman Kumar, Maxim Gorkunov, Yuri Kivshar
https://arxiv.org/abs/2507.17428 htt…

Maximal optical chirality via mode coupling in bilayer metasurfaces
Recent advances in the physics of resonant optical metasurfaces allowed to realize the so-called {\it maximum chirality} of planar structures by engineering their geometric parameters. Here we employ bilayer membrane metasurfaces with a square lattice of rotated C$_4$-symmetric holes and uncover very different scenarios of chirality maximization by virtue of strong coupling of photonic eigenmodes of the membranes supplemented by smart engineering of dissipation losses. Our findings substantiall…

3D fast-mode Wave Propagation from Corona to Chromosphere: Triggering Mechanism for 3D Oscillations of filaments
Yunxue Huang, Qin Feng, Yuhu Miao, Zhining Qu, Ke Yu, Hongfei Liang, Yu Liu, Xinping Zhou
https://arxiv.org/abs/2507.14837

3D fast-mode Wave Propagation from Corona to Chromosphere: Triggering Mechanism for 3D Oscillations of filaments
Moreton waves are widely regarded as the chromospheric counterpart of extreme ultraviolet (EUV) waves propagating in the corona. However, direct observational evidence confirming their simultaneous propagation across multiple atmospheric layers from the corona through the transition region to the chromosphere has been lacking. In this study, we present comprehensive observational evidence of a three-dimensional (3D) fast-mode wave propagating from the corona through the transition region into t…

Reconfigurable qubit states and quantum trajectories in a synthetic artificial neuron network with a process to direct information generation from co-integrated burst-mode spiking under non-Markovianity
Osama M. Nayfeh, Chris S. Horne
https://arxiv.org/abs/2507.16669

Reconfigurable qubit states and quantum trajectories in a synthetic artificial neuron network with a process to direct information generation from co-integrated burst-mode spiking under non-Markovianity
A synthetic artificial neuron network functional in a regime where quantum information processes are co-integrated with spiking computation provides significant improvement in the capabilities of neuromorphic systems in performing artificial intelligence and autonomy tasks. This provides the ability to execute with the qubit coherence states and entanglement as well as in tandem to perform functions such as read out and basic arithmetic with conventional spike-encoding. Ultimately, this enables…

Direct fiber-coupled soliton microcomb system with enhanced stability and reproducibility via high numerical-aperture polarization-maintaining single-mode fibers and temperature control
Miezel Talara, Yu Tokizane, Kodai Yamaji, Yoshihiro Makimoto, Kenji Nishimoto, Yudai Matsumura, Masayuki Higaki, Naoya Kuse, Takeshi Yasui
https://arxiv.or…

Direct fiber-coupled soliton microcomb system with enhanced stability and reproducibility via high numerical-aperture polarization-maintaining single-mode fibers and temperature control
We propose a compact and robust system architecture for soliton microcomb generation, based on two key techniques: direct fiber coupling using high numerical-aperture polarization-maintaining single-mode fibers (high-NA PMFs) and active temperature control of the microresonator. These complementary strategies address two major challenges in microcomb implementation: environmental sensitivity and resonance instability. Building on prior work using single-mode fiber (SMF)-based direct coupling, w…

Spatial mapping and tuning of terahertz modes in a silicon whispering gallery mode resonator
Anna R. Petersen, Pablo Paulsen, Florian Sedlmeir, Nicholas J. Lambert, Harald G. L. Schwefel, Mallika Irene Suresh
https://arxiv.org/abs/2506.17257

Spatial mapping and tuning of terahertz modes in a silicon whispering gallery mode resonator
Identification and subsequent manipulation of resonant modes typically relies on comparison with calculations which require precise knowledge of material parameters and dimensions. For millimetre-sized resonators that support millimetre-wave modes, this is particularly challenging due to the poorly determined physical parameters and additional perturbative effects of nearby dielectric or metallic substrates in experimental setups. Here, we use perturbation from a metal needle to experimentally …

Wavelength-agnostic 3D-Nanoprinted coupler
Huiyu Huang, Zhitian Shi, Chunhui Yao, Richard Penty, Qixiang Cheng
https://arxiv.org/abs/2506.17825 https://

Wavelength-agnostic 3D-Nanoprinted coupler
We present a photonic coupler that exhibits effectively wavelength-agnostic performance for ultra-broadband optical interfacing. By incorporating a dual-ellipsoidal geometry, the design facilitates quasi-free-space optical propagation. We further propose a hybrid modelling workflow employs a matrix optics-based approach as an efficient pre-design tool, capturing critical geometry-to-mode mapping characteristics, significantly narrowing the parameter space required for subsequent full-vectorial …

Simulation of silicon ridge waveguide enhanced two-photon absorption from femtosecond pulses
Cael Warner, Ruoheng Zhang
https://arxiv.org/abs/2506.18098 ht…

Simulation of silicon ridge waveguide enhanced two-photon absorption from femtosecond pulses
Field enhancement of two-photon absorption from a 50-fs pulse on a silicon ridge waveguide is simulated for a varying energy downward propagating 800+/-9.42 nm wavelength plane-wave orthonormal to a waveguide in 2D FDTD using ANSYS Lumerical FDTD. Energy absorbed by the waveguide is enhanced due to mode confinement within the standard 500 nm width, 130 nm height silicon ridge waveguide on 90 nm thick silicon and 3 μm silicon dioxide insulator.