Tootfinder

Observing the launch of an Eddington wind in the luminous Seyfert galaxy PG1211 143: #BlackHole shows high velocity sign of over-eating: https://le.ac.uk/news/2025/june/distant-supermassive-black-hole-high-velocity-over-eating-770

#BlueShellThe1Percent
#FreeLuigi

Relativistic implications of entropy and purity
Joseph Balsells, Martin Bojowald
https://arxiv.org/abs/2506.14705 https://arxiv.org/p…

Relativistic implications of entropy and purity
A quantum object is extended by virtue of quantum uncertainty. Subjected to gravity, it therefore experiences tidal forces and other relativistic effects. As a result, entropy and purity affect geodesic motion and acquire weight, an observation that has broad implications from free-fall experiments to Hawking radiation. If the object's position is quantum correlated in at least two directions, a complete description of its geodesic motion requires non-Riemannian geometry of a form controlled by…

Viscoplastic flows in narrow channels: Herschel-Bulkley models versus its regularizations
Benedetta Calusi, Angiolo Farina, Lorenzo Fusi, Luigi Vergori
https://arxiv.org/abs/2506.12934

Viscoplastic flows in narrow channels: Herschel-Bulkley models versus its regularizations
We investigated the two-dimensional flows of a viscoplastic fluid in symmetric channels with impermeable walls under no-slip boundary conditions. As response functions for the Cauchy stress tensor of the viscoplastic fluid, we considered both the celebrated Herschel-Bulkley model and a very general class $\mathcal{C}$ of its regularizations that depend on a positive parameter with the same physical dimensions as the strain rate and known as the \emph{regularization parameter}. Within this class…

🇺🇦 #NowPlaying on #KEXP's #DriveTime
Black Whales:
🎵 New Astrology
#BlackWhales
https://blackwhales.bandcamp.com/track/new-astrology
https://open.spotify.com/track/28nQjsidmpkqEhqRhRlLI3

A Grauert-Riemenschneider vanishing theorem for Witt canonical sheaves
Jefferson Baudin
https://arxiv.org/abs/2506.14647 https://arxi…

A Grauert-Riemenschneider vanishing theorem for Witt canonical sheaves
We prove a Witt vector version of the usual Grauert-Riemenschneider vanishing theorem over fields of positive characteristic, solving a question raised by Blickle, Esnault, Chatzistamatiaou and Rülling. We then deduce some rationality consequences for $F$-rational singularities.

Shadow and strong-field lensing effects of quantum-corrected RN blackhole
Nikko John Leo S. Lobos, Virginia C. Fernandez
https://arxiv.org/abs/2506.13091 h…

Shadow and strong-field lensing effects of quantum-corrected RN blackhole
We investigate the effects of a quantum-corrected RN black hole on the shadow using Perlick methodology and strong-field gravitational lensing using Tsukamoto's approach. Our analysis shows that even at extreme charge, the predicted shadow remains within the observational bounds set by the Event Horizon Telescope for both M87* and Sgr A*. The charge significantly influences the deflection angle near the photon sphere, while its effect diminishes at larger distances. In contrast, the quantum cor…

Blocklet concatenation: Low-overhead fault-tolerant protocols for fusion-based quantum computation
Daniel Litinski
https://arxiv.org/abs/2506.13619 https:/…

Blocklet concatenation: Low-overhead fault-tolerant protocols for fusion-based quantum computation
We introduce a construction for protocols for fault-tolerant quantum computing based on code concatenation and transversal gates. These protocols can be interpreted as families of quantum circuits of low-weight stabilizer measurements without strict locality constraints, effectively implementing concatenated codes. However, we primarily study these protocols in the context of photonic fusion-based quantum computing (FBQC), where they yield families of fusion networks with constant-sized resourc…

Understanding Community-Level Blocklists in Decentralized Social Media
Owen Xingjian Zhang, Sohyeon Hwang, Yuhan Liu, Manoel Horta Ribeiro, Andr\'es Monroy-Hern\'andez
https://arxiv.org/abs/2506.05522

Understanding Community-Level Blocklists in Decentralized Social Media
Community-level blocklists are key to content moderation practices in decentralized social media. These blocklists enable moderators to prevent other communities, such as those acting in bad faith, from interacting with their own -- and, if shared publicly, warn others about communities worth blocking. Prior work has examined blocklists in centralized social media, noting their potential for collective moderation outcomes, but has focused on blocklists as individual-level tools. To understand h…

🇺🇦 #NowPlaying on KEXP's #Early
Black Whales:
🎵 New Astrology
#BlackWhales
https://blackwhales.bandcamp.com/track/new-astrology
https://open.spotify.com/track/28nQjsidmpkqEhqRhRlLI3