Tootfinder

Deterministic single-photon source over the terahertz regime
Caspar Groiseau, Miguel \'A. Mart\'inez-Garc\'ia, Diego Mart\'in-Cano, Carlos S\'anchez Mu\~noz
https://arxiv.org/abs/2509.26486

Deterministic single-photon source over the terahertz regime
We propose a deterministic single-photon source in the terahertz (THz) regime, triggered by a sequence of coherent optical pulses. The scheme leverages the permanent dipole moment of a single-polar quantum emitter to induce THz transitions between optically dressed states, enhanced by a resonant coupling to a hybrid THz cavity. We present a cavity design that delivers high efficiency, purity, and indistinguishability while also enabling easy tunability of the emission frequency across the THz r…

LST-1 observations of GRB 221009A: Insights into its late-time VHE afterglow
Arnau Aguasca-Cabot (for the CTAO-LST Project), Susumu Inoue (for the CTAO-LST Project), Monica Seglar-Arroyo (for the CTAO-LST Project), Kenta Terauchi (for the CTAO-LST Project), Pol Bordas (for the CTAO-LST Project), Marc Rib\'o (for the CTAO-LST Project)
https://

LST-1 observations of GRB 221009A: Insights into its late-time VHE afterglow
Gamma-ray bursts (GRBs) originate from explosions at cosmological distances, generating collimated jets. GRB 221009A, exploded on 9 October 2022, has been established as the brightest GRB to date. Its bright and long emission was extensively followed up from radio to gamma rays. LHAASO firmly detected the onset of the afterglow emission at energies up to $\sim$13 TeV within about an hour after the burst, starting just a few minutes after the trigger. While this VHE emission component can be acc…

Whom We Trust, What We Fear: COVID-19 Fear and the Politics of Information
Daniele Baccega, Paolo Castagno, Antonio Fern\'andez Anta, Juan Marcos Ramirez, Matteo Sereno
https://arxiv.org/abs/2508.20146

Whom We Trust, What We Fear: COVID-19 Fear and the Politics of Information
The COVID-19 pandemic triggered not only a global health crisis but also an infodemic, an overload of information from diverse sources influencing public perception and emotional responses. In this context, fear emerged as a central emotional reaction, shaped by both media exposure and demographic factors. In this study, we analyzed the relationship between individuals' self-reported levels of fear about COVID-19 and the information sources they rely on, across nine source categories, including…

Far-infrared lines hidden in archival deep multi-wavelength surveys: Limits on [CII]-158$\mu$m at $z \sim 0.3-2.9$
Shubh Agrawal, James Aguirre, Ryan Keenan
https://arxiv.org/abs/2509.24211

Far-infrared lines hidden in archival deep multi-wavelength surveys: Limits on [CII]-158$μ$m at $z \sim 0.3-2.9$
Singly-ionized carbon is theorized to be the brightest emission line feature in star-forming galaxies, and hence an excellent tracer of the evolution of cosmic star formation. Archival maps from far-infrared and sub-millimeter surveys potentially contain the redshifted [CII]-158$μ$m, hidden in the much brighter continuum emission. We present a search for aggregate [CII]-158$μ$m line emission across the predicted peak of star formation history by tomographically stacking a high-completeness ga…

Capita given record £14 million fine over ransomware attack security failings https://therecord.media/capita-record-fine-uk-ico-ransomware-attack

CDC upheaval triggers global concern amid ongoing US vaccine policy debate:
https://www.cidrap.umn.edu/covid-19/cdc-upheaval-triggers-global-concern-amid-ongoing-us-vaccine-policy-debate

Los enfermos con cara de póker. Columna de Paula Escobar.
https://wallabag.altgr.xyz/share/6898c6b941dee0.92094674
Original 🔗: …

Towards a DSL to Formalize Multimodal Requirements
Marcos Gomez-Vazquez, Jordi Cabot
https://arxiv.org/abs/2508.14631 https://arxiv.org/pdf/2508.14631

Towards a DSL to Formalize Multimodal Requirements
Multimodal systems, which process multiple input types such as text, audio, and images, are becoming increasingly prevalent in software systems, enabled by the huge advancements in Machine Learning. This triggers the need to easily define the requirements linked to these new types of user interactions, potentially involving more than one modality at the same time. This remains an open challenge due to the lack of languages and methods adapted to the diverse nature of multimodal interactions, wi…

Unilateral Criticality and Phase Transition in the Cavity-Ising Model
Zeyu Rao, Xiaoshui Lin, Xiwang Luo, Guangcan Guo, Han Pu, Ming Gong
https://arxiv.org/abs/2509.04391 https:…

Unilateral Criticality and Phase Transition in the Cavity-Ising Model
Superradiant phase transitions from cavity light-matter coupling have been widely explored across platforms. Here, we report a unilateral critical endpoint (UCEP) and a tricritical point (TCP) in the phase diagram of the cavity-coupled transverse Ising model with $\mathbb{Z}_2$ symmetry. At zero temperature, we demonstrate that this model hosts three phases separated by two second-order and one first-order transitions. These lines intersect at a TCP and a UCEP, the latter not captured by existi…