Tootfinder

Google advises some employees on visas, including H-1B visas, not to travel outside the US due to processing delays, following new social media screening rules (Business Insider)
https://www.businessinsider.com/google-tells-visa-holders-stamp-le…

Google warns some visa employees not to leave the US due to 'significant' return delays of up to a year
The US State Department said it was "prioritizing thoroughly vetting" each visa case, which could cause delays.

A paradox I think about:
If advertising doesn’t work - why is that the business model nearly every internet business defaults to?
If advertising online is so lucrative, why are marketing departments all over failing to meet targets and struggling to show any results?
Everything is ads and none of it is working. And I’m just a lone marketer screaming in this forest of nonsense hoping some tree falls and hears me.

The least frightening films ever – ranked! https://www.theguardian.com/film/2025/oct/30/the-least-frightening-films-ever-ranked?CMP=Share_iOSApp_Other

Energy minimization for skyrmions on planar thin films
Giovanni Di Fratta, Michael Innerberger, Dirk Praetorius, Valeriy Slastikov
https://arxiv.org/abs/2509.23495 https://

Energy minimization for skyrmions on planar thin films
We consider an energy functional that arises in micromagnetic and liquid crystal theory on thin films. In particular, our energy comprises a non-convex term that models anti-symmetric exchange as well as an anisotropy term. We devise an algorithm for energy minimization in the continuous case and show weak convergence of a subsequence towards a solution of the corresponding Euler--Lagrange equation. Furthermore, an algorithm for numerical energy minimization is presented. We show empirically th…

Second ac screening step as a probe for the first-order melting transition in layered vortex matter at intermediate temperatures
Gonzalo Rumi, Pablo Pedrazzini, Hern\'an Pastoriza, Marcin Konczykowski, Yanina Fasano
https://arxiv.org/abs/2510.01518

Second ac screening step as a probe for the first-order melting transition in layered vortex matter at intermediate temperatures
We present a new probe for the first-order transition for layered vortex matter: A second step in the screening of an ac field that is independent of the frequency and amplitude of the excitation. This second step is observed in the intermediate temperature and field ranges where detecting the jump in induction associated with the transition is rather elusive with standard magnetometry techniques. We observe this second step following a novel experimental protocol where the screening of a local…

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@… https://typo.social/@nicksherman/115318421396987657

Imaging of Gate-Controlled Suppression of Superconductivity via the Meissner Effect
P. J. Scheidegger, K. J. Knapp, U. Ognjanovic, L. Ruf, S. Diesch, E. Scheer, A. Di Bernardo, C. L. Degen
https://arxiv.org/abs/2510.09044

Imaging of Gate-Controlled Suppression of Superconductivity via the Meissner Effect
It was recently discovered that supercurrents flowing through thin superconducting nanowires can be quenched by a gate voltage. This gate control of supercurrents, known as the GCS effect, could enable superconducting transistor logic. Here, we report that the GCS also manifests in a suppression of Meissner screening, establishing the phenomenon as a genuine feature of superconductivity that is not restricted to transport. Using a scanning nitrogen-vacancy magnetometer at sub-Kelvin temperature…

On the contribution of galaxies to the magnetic field in cosmic voids
K\'aroly Seller, G\"unter Sigl
https://arxiv.org/abs/2510.08025 https://arxi…

On the contribution of galaxies to the magnetic field in cosmic voids
Astrophysical processes can contribute to magnetic fields within cosmic voids either through magnetized outflows from the astrophysical large-scale structure or through superposition of dipolar contributions from individual galaxies. Such astrophysical magnetic fields represent a foreground to possible space-filling primordial magnetic fields seeded in the early Universe. In this paper, we provide a qualitative description of the screening of magnetic fields by intergalactic plasmas. We find th…

Anisotropy by design in superconducting Nb thin films via ultrashort pulse laser irradiation
Javier Frechilla (Instituto de Nanociencia y Materiales de Arag\'on), Nicolas Lejeune (D\'epartement de Physique, Q-MAT, CESAM, Universit\'e de Li\`ege, B-4000, Belgium), Elena Mart\'inez (Instituto de Nanociencia y Materiales de Arag\'on), Emile Fourneau (D\'epartement de Physique, Q-MAT, CESAM, Universit\'e de Li\`ege, B-4000, Belgium), Alejandro Frechilla (Institu…

Anisotropy by design in superconducting Nb thin films via ultrashort pulse laser irradiation
The ability to fabricate anisotropic superconducting layers a la carte is desired in technologies such as fluxon screening or removal in field-resilient devices, flux lensing in ultra-sensitive sensors, or in templates for imprinting magnetic structures in hybrid magnetic/superconducting multilayers. In this work, we demonstrate tailored superconductivity in polycrystalline niobium thin films exposed to femtosecond ultraviolet laser pulses. The samples exhibit significant changes in their super…