Tootfinder

Stark Tuning and Charge State Control in Individual Telecom C-Band Quantum Dots
N. J. Martin, A. J. Brash, A. Tomlinson, E. M. Sala, E. O. Mills, C. L. Phillips, R. Dost, L. Hallacy, P. Millington-Hotze, D. Hallett, K. A. O'Flaherty, J. Heffernan, M. S. Skolnick, A. M Fox, L. R. Wilson
https://arxiv.org/abs/2506.07951…

Stark Tuning and Charge State Control in Individual Telecom C-Band Quantum Dots
Telecom-wavelength quantum dots (QDs) are emerging as a promising solution for generating deterministic single-photons compatible with existing fiber-optic infrastructure. Emission in the low-loss C-band minimizes transmission losses, making them ideal for long-distance quantum communication. In this work, we present the first demonstration of both Stark tuning and charge state control of individual InAs/InP QDs operating within the telecom C-band. These QDs are grown by droplet epitaxy and emb…

The latest salvo in Trump's fight to remake America’s elite cultural institutions:
This time, the attack has foundered!
So far, Sajet, a 60-year-old Dutch art historian with a long career in American and Australian art museums who became the National Portrait Gallery’s first female director in 2013, is still at her desk.
Trump lacks the legal authority to dismiss Sajet or hire her replacement
—although you can bet that administration lawyers are looking for legal …

Why Is Trump Trying to Fire This Museum Director?
If he succeeds, it could put the whole Smithsonian under his thumb.

Wie retten wir unsere Städte?
Das fragt Christian Sievers und fragt in Städten, die sich ihere Schönheit lebenswert erhalten haben, ist unter anderem in Freiburg und im spanischen Santander. Und er ist in Ludwigshafen, der schönsten Stad aus Beton für alle, die Autobahnen und Bundesstraßen lieben.

Am Puls mit Christian Sievers - Wie retten wir unsere Städte? Leben statt Leere!
Viele deutsche Innenstädte wirken wie Orte, die man lieber meidet. Woran liegt das? ZDF-Moderator Christian Sievers will das herausfinden.

Was Merz' Grenzkontrollen in der Realität der zusammenwachsenden Städte im Grenzgebiet DE-FR bedeuten: https://www.spiegel.de/politik/deutschland

Kehls Oberbürgermeister über Grenzkontrollen: »Etwas mehr Fingerspitzengefühl hätte ich Friedrich Merz schon zugetraut«
Staus, Umwege, klagende Händler: Die verschärften Grenzkontrollen belasten deutsche Grenzstädte. Hier spricht Kehls Oberbürgermeister Wolfram Britz über seinen Frust – und einen Brief an Kanzler Merz.

Fifty Years of CAK
Jorick S. Vink (Armagh Observatory,Planetarium)
https://arxiv.org/abs/2506.06421 https://arxiv.org/pdf/2506.06421

Fifty Years of CAK
We present a new framework for massive star evolution that is no longer driven by Dutch or other mass-loss rate Recipes, but which take the physics of Gamma or L/M dependent mass loss consistently into account. We first discuss the hot-star mass-loss kink and the transition mass loss rate between optically thin and thick winds, before discussing vertical stellar evolution, mass evaporation, and the maximum black hole (BH) mass. We end with a suggestion that a recently uncovered red supergiant (…

This https://arxiv.org/abs/2302.03912 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

An interpolation of discrete rough differential equations and its applications to analysis of error distributions
We consider the solution $Y_t$ $(0\le t\le 1)$ and several approximate solutions $\hat{Y}^m_t$ of a rough differential equation driven by a fractional Brownian motion $B_t$ with the Hurst parameter $1/3

Vacancy-Controlled Superconductivity in Rock-Salt Carbides: Towards Predictive Modelling of Real-World Superconductors
Simone Di Cataldo, William Cursio, Lilia Boeri
https://arxiv.org/abs/2506.07768

Vacancy-Controlled Superconductivity in Rock-Salt Carbides: Towards Predictive Modelling of Real-World Superconductors
We critically reexamine the superconducting properties of rock-salt transition-metal carbides (TMCs), often regarded as textbook conventional superconductors, combining first-principles electron-phonon calculations with variable-composition evolutionary structure prediction. Studying superconducting trends across the entire transition-metal series, we find that, when the rock-salt stoichiometric phase is dynamically or thermodynamically unstable, carbon-vacant structures identified through unbi…

After hanging around in Dutch parliament for 35 years (8 years as assistant and speech writer for VVD, 27 years as MP), far-right Wilders just blew up his first own coalition, because the other parties didn't sign up for his new list of anti-refugee/asylumseeker ideas.

Was looking for a trash can in this Black Forest town, searched in @…, no results, so I walked around and added all trash cans I could find and other stuff I found useful 🗑️
#OpenStreetMap

"Malgré des semaines de couverture médiatique négative, des déportations très médiatisées de migrants et d'étudiants munis de visas, et une décision négative de la Cour suprême, l'immigration reste le dossier le plus populaire de M. Trump : 47 % l'approuvent, tandis que 51 % le désapprouvent, selon un sondage New York Times/Siena College réalisé ce mois-ci."
#Trump