Tootfinder

Quasinormal Modes in Noncommutative Schwarzschild Black Holes: A Spectral Analysis
Davide Batic, Denys Dutykh
https://arxiv.org/abs/2406.03353 https://

Quasinormal Modes in Noncommutative Schwarzschild Black Holes: A Spectral Analysis
We present a comprehensive analysis of quasinormal modes (QNMs) for noncommutative geometry-inspired Schwarzschild black holes, encompassing both non-extreme and extreme cases. By employing a spectral method, we calculate the QNMs in the context of scalar, electromagnetic, and gravitational perturbations. Our findings not only challenge previous claims in the literature regarding the instability of these black holes but also reveal remarkable stability for both non-extreme and extreme Schwarzsc…

Listening to this episode of 99% Invisible with Kid2 who's seriously annoyed with the Anglo journalists' French accent and the fact that they keep cutting off the Congolese interviewees to translate to English. "Why can't they just let them speak?" It's hard for the 8yo kid to understand that not everyone else is bilingual.

The Society of Ambiance Makers and Elegant Persons - 99% Invisible
Hailing from central African cities of Brazzaville and Kinshasa, sapeurs have become increasingly recognizable around the world. Since the 1970s, sapeurs (from: le sape, short for “Société des Ambianceurs et des Personnes Élégantes”) have been known for donning technicolored three-piece suits with flamboyant accessories like golden walking sticks and leopard-print fedoras, and then cat-walking through

Slack seems to have gotten worse at handling high packet loss connections. Has anyone else noticed that?
Sometimes a received message takes minutes before it shows up even after a notification, sometimes a sent message disappears never to be seen again, and sometimes when changing channels I get stuck with blank windows until I restart

More music that I code by... beware, it gets seriously loud - all of those people in the background will be singing at the top of their lungs towards the end.
https://youtu.be/l-6z-ow6H1c

Orbits of particles with magnetic dipole moment around magnetized Schwarzschild black holes: Applications to S2 star orbit
Uktamjon Uktamov, Mohsen Fathi, Javlon Rayimbaev, Ahmadjon Abdujabbarov
https://arxiv.org/abs/2406.03371

Orbits of particles with magnetic dipole moment around magnetized Schwarzschild black holes: Applications to S2 star orbit
This study provides a comprehensive analytical investigation of the bound and unbound motion of magnetized particles orbiting a Schwarzschild black hole immersed in an external asymptotically uniform magnetic field, which includes all conceivable types of bounded and unbounded orbits. In particular, for planetary orbits, we perform a comparative analysis of our findings with the observed position of the S2 star carrying magnetic dipole moment around Sagittarius A* (Sgr A*). We found maximum and…

This https://arxiv.org/abs/2406.02116 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

A clock is just a way to tell the time: gravitational algebras in cosmological spacetimes
We study the algebra of observables in semiclassical quantum gravity for cosmological backgrounds, focusing on two key examples: slow-roll inflation and evaporating Schwarzschild-de Sitter black holes. In both cases, we demonstrate the existence of a nontrivial algebra of diffeomorphism-invariant observables \emph{without} the introduction of an external clock system or the presence of any asymptotic gravitational charges. Instead, the rolling inflaton field and the evaporating black hole act a…

This https://arxiv.org/abs/2106.00273 has been replaced.
link: https://scholar.google.com/scholar?q=a

Improving the Adversarial Robustness for Speaker Verification by Self-Supervised Learning
Previous works have shown that automatic speaker verification (ASV) is seriously vulnerable to malicious spoofing attacks, such as replay, synthetic speech, and recently emerged adversarial attacks. Great efforts have been dedicated to defending ASV against replay and synthetic speech; however, only a few approaches have been explored to deal with adversarial attacks. All the existing approaches to tackle adversarial attacks for ASV require the knowledge for adversarial samples generation, but …

This https://arxiv.org/abs/2310.04600 has been replaced.
link: https://scholar.google.com/scholar?q=a

Black hole interior quantization: a minimal uncertainty approach
In a previous work we studied the interior of the Schwarzschild black hole implementing an effective minimal length, by applying a modification to the Poisson brackets of the theory. In this work we perform a proper quantization of such a system. Specifically, we quantize the interior of the Schwarzschild black hole in two ways: once by using the standard quantum theory, and once by following a minimal uncertainty approach. Then, we compare the obtained results from the two approaches. We show …

SRE Weekly Issue #429 is out! https://sreweekly.com/sre-weekly-issue-429/

SRE Weekly Issue #429 is out! https://sreweekly.com/sre-weekly-issue-429/