Tootfinder

Entweder ist grad mein #Heuschnupfen völlig eskaliert oder ich hab #Rüsselseuche. WAAAAAH!

test test
https://video.wastedalpaca.wtf/watch?v=HJnbmUnNNYo

Powerful (I thought) narrative from Sabine Hossenfelder about why she’s no longer an employed-in-academia scientist and is instead a YouTuber: https://backreaction.blogspot.com/2024/04/how-i-fell-out-of-love-with-academia.html

How I fell out of love with academia
Science News, Physics, Science, Philosophy, Philosophy of Science

That’s not a very sweet solution https://mastodon.social/@chockenberry/111896555391037006

This https://arxiv.org/abs/2402.19079 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Experimental investigation of a multi-photon Heisenberg-limited interferometric scheme: the effect of imperfections
Interferometric phase estimation is an essential tool for precise measurements of quantities such as displacement, velocity and material properties. The lower bound on measurement uncertainty achievable with classical resources is set by the shot-noise limit (SNL) that scales asymptotically as $1/\sqrt{N}$, where $N$ is the number of resources used. The experiment of [S. Daryanoosh et al., Nat. Commun. ${\bf 9}$, 4606 (2018)] showed how to achieve the ultimate precision limit, the exact Heisenb…

Absence of local conserved quantity in the Heisenberg model with next-nearest-neighbor interaction
Naoto Shiraishi
https://arxiv.org/abs/2403.04522 https:/…

Absence of local conserved quantity in the Heisenberg model with next-nearest-neighbor interaction
We rigorously prove that the Heisenberg chain with next-nearest-neighbor interaction, which is anticipated to be non-integrable, is indeed non-integrable in the sense that this system has no nontrivial local conserved quantity. Our result covers two important models, the Majundhar-Ghosh model and the Shastry-Sutherland model, as special cases. These models are shown to be non-integrable while have some solvable energy eigenstates.

Hochempfindlicher Roboter-Berührungssensor reagiert auch auf Abstand
Roboter müssen zur Objektmanipulation diese zunächst erkennen. Statt optischer Verfahren, kann ein Sensor genutzt werden, der auch auf Abstand funktioniert.

On the lattice model of the Weil representation
Chun-Hui Wang
https://arxiv.org/abs/2404.03983 https://arxiv.org/pdf/2404.03983

On the lattice model of the Weil representation
Let F be a local field. In the case of F being the real field, Pierre Cartier constructed Heisenberg-Weil representations of a Heisenberg group in families using non-self-dual lattices. This result was later reformulated by Jae-Hyun Yang in another paper. We extend this family of representations to a representation of a Jacobi subgroup by incorporating a rational Metaplectic group. In the case of F being a non-archimedean local field of odd residual characteristic or a finite unramified extensi…

Musste bei dem Video von Sabine Hossenfelder, deren "no bullshit"-Haltung ich sehr mag, gerade an "What is real?" von Adam Becker (https://bookwyrm.social/book/27179/s/what-is-real) denken. Das fand ich sehr spannend und anregend.

Disorder free many-body localization transition in two quasiperiodically coupled Heisenberg spin chains
K. G. S. H. Gunawardana, Bruno Uchoa
https://arxiv.org/abs/2405.04516

Disorder free many-body localization transition in two quasiperiodically coupled Heisenberg spin chains
Disorder free many-body localization (MBL) can occur in interacting systems that can dynamically generate their own disorder. We address the thermal-MBL phase transition of two isotropic Heisenberg spin chains that are quasi-periodically coupled to each other. The spin chains are incommensurate and are coupled through a short range exchange interaction of the $XXZ$ type that decays exponentially with the distance. Using exact diagonalization, matrix product states and density matrix renormaliza…