Tootfinder

Distribution of non-Gaussian states in a deployed telecommunication fiber channel
Casper A. Breum, Xueshi Guo, Mikkel V. Larsen, Shigehito Miki, Hirotaka Terai, Ulrik L. Andersen, Jonas S. Neergaard-Nielsen
https://arxiv.org/abs/2509.18080

Distribution of non-Gaussian states in a deployed telecommunication fiber channel
Optical non-Gaussian states hold great promise as a pivotal resource for advanced optical quantum information processing and fault-tolerant long-distance quantum communication. Establishing their faithful transmission in a real-world communication channel, therefore, marks an important milestone. In this study, we experimentally demonstrate the distribution of such non-Gaussian states in a functioning telecommunication channel that connects separate buildings within the DTU campus premises. We …

Android makes it hard to run background processes, but one hack to work around it is to display a notification. So my entire phone's notifications screen is now filled with notifications that allow background jobs to run. GPS tracker, fitness tracker, web messages access, syncthing, doze stopper (itself to fix another Android bug). This is a very bad user experience.

Adiabatic Klein-Gordon Dynamics for the Renormalized Nelson Model
Morris Brooks, David Mitrouskas
https://arxiv.org/abs/2509.14226 https://arxiv.org/pdf/25…

Adiabatic Klein-Gordon Dynamics for the Renormalized Nelson Model
We study the renormalized Nelson model in a semiclassical regime where the field becomes classical while the particle remains quantum. The degree of classicality is measured by a small parameter $\varepsilon \ll 1$. In this scaling the particle evolves on microscopic times, whereas the field exhibits nontrivial dynamics only on the macroscopic scale $t=\mathcal{O}(\varepsilon^{-2})$. The natural semiclassical model is the coupled Schrödinger-Klein-Gordon (SKG) system, which encodes the time-sc…

Skyrmion Lattice Domain Formation in a Non-Flat Energy Landscape
Raphael Gruber, Jan Roth\"orl, Simon M. Fr\"ohlich, Maarten A. Brems, Tobias Sparmann, Fabian Kammerbauer, Maria-Andromachi Syskaki, Elizabeth M. Jefremovas, Sachin Krishnia, Asle Sudb{\o}, Peter Virnau, Mathias Kl\"aui
https://arxiv.org/abs/2508.12988

Skyrmion Lattice Domain Formation in a Non-Flat Energy Landscape
Magnetic skyrmions are chiral spin structures with non-trivial topology that comprise two-dimensional quasi-particles and are promising information carriers for data storage and processing devices. Skyrmion lattices in magnetic thin films exhibit Kosterlitz-Thouless-Halperin-Nelson-Young (KTHNY) phase transitions and have garnered significant interest for studying emergent 2D phase behavior. In experimental skyrmion lattices, the main factor limiting the quasi-long-range order in thin films has…

Ok, San Francisco, let's get our act together. Spritzes are 6 euro flat around these parts.

JADES Dark Horse: demonstrating high-multiplex observations with JWST/NIRSpec dense-shutter spectroscopy in the JADES Origins Field
Francesco D'Eugenio, Erica J. Nelson, Daniel J. Eisenstein, Roberto Maiolino, Stefano Carniani, Jan Scholtz, Mirko Curti, Christopher N. A. Willmer, Andrew J. Bunker, Jakob M. Helton, Ignas Juod\v{z}balis, Fengwu Sun, Sandro Tacchella, Santiago Arribas, Alex J. Cameron, St\'ephane Charlot, Emma Curtis-Lake, Kevin Hainline, Benjamin D. Johnson, Bran…

JADES Dark Horse: demonstrating high-multiplex observations with JWST/NIRSpec dense-shutter spectroscopy in the JADES Origins Field
We present JWST/NIRSpec dense-shutter spectroscopy (DSS). This novel observing strategy with the NIRSpec micro-shutter assembly (MSA) deliberately permits a high number of controlled spectral overlaps to reach extreme multiplex while retaining the low background of slit spectroscopy. In a single configuration over the JADES Origins Field we opened shutters on all faint (F444W<30 mag) z$_{\rm phot}$>3 candidates in the MSA, prioritising emission-line science and rejecting only bright continuum s…

Geometrically expanding the BPS vortex of a non-canonical multi-field theory
F. C. E. Lima
https://arxiv.org/abs/2510.03237 https://arxiv.org/pdf/2510.0323…

Geometrically expanding the BPS vortex of a non-canonical multi-field theory
Considering a non-canonical multi-field theory, we propose a mechanism of geometric expansion for Abrikosov-Nielsen-Olesen (ANO) vortices. One builds the general setup adopting a non-canonical O(3)-sigma model, non-minimally coupled through an anomalous magnetic dipole interaction to a gauge and real scalar field. By embracing a hyperbolic non-canonical extension, one finds that self-dual vortex configurations undergo geometric expansion, deforming ANO-like vortices into disk-like structures, m…

Beyond the Algorithm: A Field Guide to Deploying AI Agents in Clinical Practice
Jack Gallifant, Katherine C. Kellogg, Matt Butler, Amanda Centi, Patrick F. Doyle, Sayon Dutta, Joyce Guo, Matthew J. Hadfield, Esther H. Kim, David E. Kozono, Hugo JWL Aerts, Adam B. Landman, Raymond H. Mak, Rebecca G. Mishuris, Tanna L. Nelson, Guergana K. Savova, Elad Sharon, Benjamin C. Silverman, Umit Topaloglu, Jeremy L. Warner, Danielle S. Bitterman

Beyond the Algorithm: A Field Guide to Deploying AI Agents in Clinical Practice
Large language models (LLMs) integrated into agent-driven workflows hold immense promise for healthcare, yet a significant gap exists between their potential and practical implementation within clinical settings. To address this, we present a practitioner-oriented field manual for deploying generative agents that use electronic health record (EHR) data. This guide is informed by our experience deploying the "irAE-Agent", an automated system to detect immune-related adverse events from clinical …

The loss tolerance of cat breeding for fault-tolerant grid state generation
Olga Solodovnikova, Ulrik L. Andersen, Jonas S. Neergaard-Nielsen
https://arxiv.org/abs/2508.06193 ht…

The loss tolerance of cat breeding for fault-tolerant grid state generation
The development of a continuous-variable photonic quantum computer depends on the reliable preparation of high-quality Gottesman-Kitaev-Preskill states. The most promising GKP preparation scheme is the cat breeding protocol, which can generate GKP states deterministically given a source of squeezed cat states, using beam splitters, homodyne detectors and a feedforward displacement. However, analyzing the performance of the protocol under loss is cumbersome due to the exponential scaling of the …

Bumblebee vector-tensor dark energy
Carsten van de Bruck, Mohammad Ali Gorji, Nils A. Nilsson, Masahide Yamaguchi
https://arxiv.org/abs/2509.11647 https://…

Bumblebee vector-tensor dark energy
Bumblebee models, a class of vector-tensor theories in which a vector field acquires a nonzero vacuum expectation value that spontaneously breaks spacetime symmetries, are ubiquitous in the literature. In this paper, we highlight several often-overlooked properties of these models by analyzing their cosmological perturbations. We show that a non-minimal coupling to gravity is essential for the stability of the setup. However, avoiding propagation of a ghost mode then requires imposing a relatio…