Tootfinder

Filing: Strava voluntarily dismissed its patent lawsuit against Garmin, for allegedly infringing its heat map and segments features, just 21 days after filing (Ray Maker/DC Rainmaker)
https://www.dcrainmaker.com/2025/10/strava-drops-voluntarily-lawsuit-again…

Strava Voluntarily Drops Lawsuit Against Garmin
 Strava’s multifaceted legal (and social media) attack on Garmin was short-lived. Just 21 days after filing the original patent infringement case, alongside a Reddit post from their executive team attacking Garmin, the company has decided to dismiss the case

The Unwinnable Arms Race of AI Image Detection
Till Aczel, Lorenzo Vettor, Andreas Plesner, Roger Wattenhofer
https://arxiv.org/abs/2509.21135 https://arxi…

The Unwinnable Arms Race of AI Image Detection
The rapid progress of image generative AI has blurred the boundary between synthetic and real images, fueling an arms race between generators and discriminators. This paper investigates the conditions under which discriminators are most disadvantaged in this competition. We analyze two key factors: data dimensionality and data complexity. While increased dimensionality often strengthens the discriminators ability to detect subtle inconsistencies, complexity introduces a more nuanced effect. Usi…

Beyond Copenhagen: Following the Trail of Decoherence in Feynman's Light Microscope
Brian C. Odom
https://arxiv.org/abs/2508.13385 https://arxiv.org/pd…

Beyond Copenhagen: Following the Trail of Decoherence in Feynman's Light Microscope
Feynman's light microscope invites us to reconsider what we thought we knew about quantum reality. Rather than invoking wavefunction collapse to predict the loss of fringes in a monitored interferometer, Feynman analyzes the problem in terms of a disturbance. This approach raises the question of whether the classical world, including its localized particles and definite measurement outcomes, might emerge as the universe evolves smoothly according to ß. Treating the particle and its environment…

Fractional topological insulators at odd-integer filling: Phase diagram of two-valley quantum Hall model
Sahana Das, Glenn Wagner, Titus Neupert
https://arxiv.org/abs/2509.16335

Fractional topological insulators at odd-integer filling: Phase diagram of two-valley quantum Hall model
The fractional quantum Hall effect has recently been shown to exist in heterostructures of van der Waals materials without an externally applied magnetic field, e.g. in twisted bilayers of MoTe$_2$. These fractional Chern insulators break time-reversal symmetry spontaneously through polarization of the electron spins in a quantum spin Hall insulator band structure with flat bands. This prompts the question, which states could be realized if the spins remain unpolarized or polarize partially. Sp…

Genuinely surprised the DoJ is following through on this given its new effort to marginalize disabled people.
“US sues Uber, alleges discrimination against disabled riders”
https://www.reuters.com/sustainability/soc

Trump Is a Weak and Failing President, and It’s Time to Say So
Economy loses jobs for August
Donald Trump understands better than anyone else alive that his hold on his supporters
—and on plenty of swing voters, too
—depends on the mere perception that he’s strong, wins everywhere, always acts boldly, and wields absolute mastery over his eternally feckless, disoriented enemies.
Last month, after an anemic July jobs report, Trump fired the steward of jobs data,

Trump Is a Weak and Failing President, and It’s Time to Say So
It’s possible for Trump to be an inept buffoon—but still extremely dangerous. And it shouldn’t be so hard to make that case.

„Made in Europe”? Bei Batterien ist das meist Fehlanzeige. 🪫🇪🇺
Laut einer Studie der Unternehmensberatung Deloitte war Europas Anteil an der weltweiten Batterieproduktion 2024 verschwindend gering: nur 13 Prozent – und selbst diese entfallen zum überwiegenden Teil auf Fabriken chinesischer und südkoreanischer Hersteller.
Zum Artikel:

Generalized DP-colorings of digraphs
Lucas Picasarri-Arrieta, Michael Stiebitz
https://arxiv.org/abs/2509.17471 https://arxiv.org/pdf/2509.17471

Generalized DP-colorings of digraphs
In this paper we consider the following three coloring concepts for digraphs. First of all, the generalized coloring concept, in which the same colored vertices of a digraph induce a subdigraph that satisfies a given digraph property. Second, the concept of variable degeneracy, introduced for graphs by Borodin, Kostochka and Toft in 2000; this allows to give a common generalization of the point partition number and the list dichromatic number. Finally, the DP-coloring concept as introduced for …

Discriminating scalar ultralight dark matter from quasi-monochromatic gravitational waves in LISA
Jordan Gu\'e, Peter Wolf, Aur\'elien Hees
https://arxiv.org/abs/2508.13847

Discriminating scalar ultralight dark matter from quasi-monochromatic gravitational waves in LISA
A scalar ultralight dark matter (ULDM) candidate would induce oscillatory motion of freely falling test masses via its coupling to Standard Model fields. Such oscillations would create an observable Doppler shift of light exchanged between the test masses, and in particular would be visible in space-based gravitational waves (GW) detectors, such as LISA. While this kind of detection has been proposed multiple times in the recent years, we numerically investigate if it is possible to extract a s…

Spin decoherence dynamics of Er$^{3 }$ in CeO$_2$ film
Sagar Kumar Seth, Jonah Nagura, Vrindaa Somjit, Aneesh Bapat, Xinhao Li, Gregory D. Grant, Ignas Masiulionis, Xu Han, F. Joseph Heremans, Giulia Galli, David D. Awschalom, Supratik Guha, Jiefei Zhang
https://arxiv.org/abs/2508.12429

Spin decoherence dynamics of Er$^{3+}$ in CeO$_2$ film
Developing telecom-compatible spin-photon interfaces is essential towards scalable quantum networks. Erbium ions (Er$^{3+}$) exhibit a unique combination of a telecom (1.5 $μ$m) optical transition and an effective spin-$1/2$ ground state, but identifying a host that enables heterogeneous device integration while preserving long optical and spin coherence remains an open challenge. We explore a new platform of Er$^{3+}$:CeO$_2$ films on silicon, offering low nuclear spin density and the potenti…