Tootfinder

A Note on the Feynman Lectures on Gravitation
Satoshi Nakajima
https://arxiv.org/abs/2509.11799 https://arxiv.org/pdf/2509.11799

A Note on the Feynman Lectures on Gravitation
Following Feynman's lectures on gravitation, we consider the theory of the gravitational (massless spin-2) field in flat spacetime and present the third- and fourth-order Lagrangian densities for the gravitational field. In particular, we present detailed calculations for the third-order Lagrangian density.

Ich bin überzeugt, dass ein Teil des Problems, das wir mit der Anschlussfähigkeit von rechten Positionen bei Teilen der Bevölkerung haben, ist, dass progressivere Kräfte die Flanke für Framings weit offen lassen.
Das unter anderem, weil Begriffe wie "Patriotismus" dort aus guten Gründen verbrannt sind.
1/10

Nonrelativistic limit of ground states to $L^2$-supercritical nonlinear Dirac equations
Pan Chen, Yanheng Ding, Qi Guo
https://arxiv.org/abs/2507.11203 htt…

Nonrelativistic limit of ground states to $L^2$-supercritical nonlinear Dirac equations
In this paper, we study the existence and nonrelativistic limit of normalized ground states for the following nonlinear Dirac equation with power-type potentials \begin{equation*} \begin{cases} &-i c\sum\limits_{k=1}^3α_k\partial_k u +mc^2 β{u}- |{u}|^{p-2}{u}=ω{u}, \\ &\displaystyle\int_{\mathbb{R}^3}\vert u \vert^2 dx =1. \end{cases} \end{equation*} We demonstrate the existence of ground states for large $c$ and establish the uniqueness of the associated Lagrange multiplier f…

Low-temperature-compatible iron garnet films grown by liquid phase epitaxy
Jamal Ben Youssef, Nathan Beaulieu, Richard Schlitz, Davit Petrosyan, Michaela Lammel, William Legrand
https://arxiv.org/abs/2509.06242

Low-temperature-compatible iron garnet films grown by liquid phase epitaxy
Single-crystalline yttrium iron garnet (YIG) thin films (< 100 nm) form the backbone of magnonics, owing to the record-low losses affecting their magnetization dynamics. However, thin epitaxial YIG has mostly been investigated under ambient temperatures, limited by the paramagnetic losses occurring at low temperatures due to the gadolinium gallium garnet (GGG) substrates required for epitaxial growth. Driven by a growing interest in magnonic devices that can operate in cryogenic conditions and …

KI-generierte Zusammenfassung von Google führt zu Gerüchten:
Vor knapp einer Woche war unser Leitungswasser wegen einer mikrobiologischen Verschmutzung nicht trinkbar. Die Bevölkerung wurde dazu aufgerufen, das Wasser abzukochen.
Nun gehen in lokalen Chats Screenshots rum, die behaupten, es wären PFAS gewesen. Die Google KI-Zusammenfassung spinnt das wohl aus einem Zeitungsartikel zusammen, in dem nebenbei über vergangene PFAS-Verunreinigungen berichtet wurde

Espera lš...
Hš uma coisa nesta notícia...
Para que é que a meta, logo a meta, quer treinar a IA com filmes pornogršficos?
Vão encher o facebook das avozinhas de pornografia, é?
https://masto.pt/@tugatech/114919955157763708

Observation and Control of Chiral Spin Frustration in BiYIG Thin Films
Jinlong Wang, Hanchen Wang, Zhewen Xu, Artim L. Bassant, Junfeng Hu, Wenjie Song, Chaozhong Li, Xiangrui Meng, Mengqi Zhao, Song Liu, Guozhi Chai, Peng Gao, Wanjun Jiang, Desheng Xue, Dapeng Yu, William Legrand, Christian L. Degen, Rembert A. Duine, Pietro Gambardella, Haiming Yu
https://

Observation and Control of Chiral Spin Frustration in BiYIG Thin Films
Chiral interactions within magnetic layers stabilize the formation of noncollinear spin textures, which can be leveraged to design devices with tailored magnetization dynamics. Here, we introduce chiral spin frustration in which energetically degenerate magnetic states frustrate the Dzyaloshinskii-Moriya interaction. We demonstrate magnon-driven switching of the chirally frustrated spin states in Bi-substituted yttrium iron garnet thin films. These states are defined by an in-plane macrospin ne…

The Legendrian Hopf Link has exactly two Lagrangian fillings
Bryce Thomson
https://arxiv.org/abs/2506.15111 https://arxiv.org/pdf/250…

The Legendrian Hopf Link has exactly two Lagrangian fillings
We prove that there are precisely two embedded exact Lagrangian fillings of the standard Legendrian Hopf link, up to compactly supported Hamiltonian isotopy. It was known that the standard Legendrian Hopf link admitted at least two such Lagrangian fillings: we show these are all. Specifically, we use a type of neck-stretching procedure to construct a pseudoholomorphic conic fibration that makes a given arbitrary exact Lagrangian filling fiber over a real curve, under a global pseudoholomorphic …

Non-Lagrangian Construction of Anyons via Flux Quantization in Cohomotopy
Hisham Sati, Urs Schreiber
https://arxiv.org/abs/2509.02577 https://arxiv.org/pdf…

Non-Lagrangian Construction of Anyons via Flux Quantization in Cohomotopy
We provide a brief invitation to the novel understanding of anyonic topological order in fractional quantum (anomalous) Hall systems, via "extraordinary" quantization of effective magnetic flux in Cohomotopy -- following our presentation at ISQS29.

@… just came across your account and thought "this might be someone interested in the UFO house in the next village from where I grew up"
https://www.…