Tootfinder

Spin and thermal current scaling at a $Y$-junction of XX spin chains
Domenico Giuliano, Francesco Buccheri
https://arxiv.org/abs/2508.10267 https://arxiv.o…

Spin and thermal current scaling at a $Y$-junction of XX spin chains
We study the boundary phase diagram and the low-temperature heat and magnetization transport at a $Y$-junction of XX spin chains. Depending on the magnetization axis anisotropy between the magnetic exchange interactions at the junction, the system exhibits two different strong-coupling regimes at low energies/temperatures, similar to the overscreened (topological) four- and to the two-channel Kondo fixed points. Using renormalization group arguments combined with boundary conformal field theo…

Special Cycle on Shtukas and Categorical Trace
Zeyu Wang
https://arxiv.org/abs/2509.05526 https://arxiv.org/pdf/2509.05526…

Special Cycle on Shtukas and Categorical Trace
In this article, we relate the fake special cycle classes $z_{\mathbb{L}_σ,r}$ attached to a Hecke eigensheaf $\mathbb{L}_σ\in\mathrm{Shv}_{\mathrm{Nilp}}(\mathrm{Bun}_G)$ introduced in the author's previous work to the isotypic part of special cycles on Shtukas. As an application, we relate the self-intersection number of the isotypic part of special cycles arising from Rankin--Selberg period to higher derivatives of Rankin--Selberg $L$-functions.

Oh fun find, there was actually something called Oxide in the history of #Rust already - a formalization attempt:
https://arxiv.org/abs/1903.00982 🦀
cc @…

Oxide: The Essence of Rust
Rust claims to advance industrial programming by bridging the gap between low-level systems programming and high-level application programming. At the heart of the argument that this enables programmers to build more reliable and efficient software is the borrow checker - a novel approach to ownership that aims to balance type system expressivity with usability. And yet, to date there is no core type system that captures Rust's notion of ownership and borrowing, and hence no foundation for rese…

Das Facebook, TikTok und Co. auch Propaganda-Plattformen sind ist allgemein bekannt. Doch deren Einsatz scheint auch von Russland für Propaganda anzuwenden wie andere auch. Ein Argument mehr diese abzuraten. (mal noch nett gesagt)
📺 SRF Tagesschau: »Wahlen in Moldau mit russischer Einflussnahme«

Tagesschau vom 26.09.2025: Hauptausgabe - Play SRF
Trump verhängt Pharma-Zölle von 100 Prozent, Bundesrat bleibt hart in Sachen Eigenkapital der UBS, Rösti plant neue Steuer für E-Autos ab 2030, Kirchenstatistik 2024: Der Mitgliederschwund geht weiter

https://techcrunch.com/2025/09/18/ice-unit-signs-new-3-million-contract-for-phone-hacking-tech/
ICE unit signs new $3M contract for phone-hacking tech

ICE unit signs new $3M contract for phone-hacking tech | TechCrunch
Homeland Security Investigations, the law enforcement arm of ICE, adds phone-unlocking tech made by Magnet Forensics to its arsenal of technology used to power the Trump administration’s deportation crackdown.

High-spin magnetic ground states of neutral dopant clusters in semiconductors
Rhine Samajdar, Haonan Zhou, R. N. Bhatt
https://arxiv.org/abs/2510.03575 https://

High-spin magnetic ground states of neutral dopant clusters in semiconductors
High-spin states hold significant promise for classical and quantum information storage and emerging magnetic memory technologies. Here, we present a systematic framework for engineering such high-spin magnetic states in dopant clusters formed from substitutional impurities in semiconductors. In single-valley materials such as gallium arsenide, impurity states are hydrogenic and exchange interactions generally favor low-spin configurations, except in special geometries. In contrast, multivalley…

Diamond-loaded polyimide aerogel scattering filters and their applications in astrophysical and planetary science observations
Kyle R. Helson, Carol Yan Yan Chan, Stefan Arseneau, Alyssa Barlis, Charles L. Bennett, Thomas M. Essinger-Hileman, Haiquan Guo, Tobias Marriage, Manuel A. Quijada, Ariel E. Tokarz, Stephanie L. Vivod, Edward J. Wollack
https://

Diamond-loaded polyimide aerogel scattering filters and their applications in astrophysical and planetary science observations
Infrared-blocking, aerogel-based scattering filters have a broad range of potential applications in astrophysics and planetary science instruments in the far-infrared, sub-millimeter, and microwave regimes. This paper demonstrates the ability of conductively-loaded, polyimide aerogel filters to meet the mechanical and science instrument requirements for several experiments, including the Cosmology Large Angular Scale Surveyor (CLASS), the Experiment for Cryogenic Large-Aperture Intensity Mappin…

The European Union Deforestation Regulation: The Impact on Argentina
Pablo de la Vega
https://arxiv.org/abs/2508.11796 https://arxiv.org/pdf/2508.11796

The European Union Deforestation Regulation: The Impact on Argentina
We analyze the potential economic impacts in Argentina of the European Union Deforestation Regulation (EUDR), which as of January 2026 will prohibit the export to the European Union of certain raw materials and related products if they involve the use of deforested land. We estimate that the EUDR would cover around 6 billion US dollars in exported value, but only 2.84% is not compliant with the EUDR, with soy and cattle being the most affected production chains. We use a dynamic computable gene…