Tootfinder

Etwas kurzfristig, weil es aufgrund meiner Gesundheit bisschen Gewurschtel bei der Terminfindung gab: Heute liest @… für mich aus "Zerrissen zwischen Pflicht und Gefühl" im Rahmen von #AllabendlichQueer !
Die Daten sind wie üblich:…

Spatial Filtering with Nonlocal Non-Hermitian Metasurfaces
Biao Chen, Mikael Reichler, Radoslaw Kolkowski, Andriy Shevchenko
https://arxiv.org/abs/2506.21336

Spatial Filtering with Nonlocal Non-Hermitian Metasurfaces
Spatial filtering of optical fields has widespread applications ranging from beam shaping to optical information processing. However, conventional spatial filters are bulky and alignment-sensitive. Here, we present nonlocal non-Hermitian metasurfaces that can act as exceptionally effective optical spatial filters while being highly compact and insensitive to both lateral and longitudinal displacements. The metasurface design is based on a resonant waveguide grating in which radiative losses of …

Hermitian Cubic norm structures and groups of relative rank one
Michiel Smet
https://arxiv.org/abs/2506.14509 https://arxiv.org/pdf/2…

Hermitian Cubic norm structures and groups of relative rank one
Hermitian cubic norm structures were recently introduced in order to study the class of skew-dimension one structurable algebras (which are typically only defined over fields of characteristic different from $2$ and $3$) over arbitrary rings and fields. Here, we generalize the quartic norm for these algebras and show that elements for which the quartic norm is invertible are conjugate invertible. This leads to the notion of a division hermitian cubic norm structure, defined as one in which the …

Holomorphic Unified Field Theory of Gravity and the Standard Model
John. W. Moffat, Ethan. J. Thompson
https://arxiv.org/abs/2506.19161 https://

Holomorphic Unified Field Theory of Gravity and the Standard Model
We present a holomorphic framework in which gravity, gauge interactions, and their couplings to charges and currents emerge from a single geometric action on a four-complex-dimensional manifold. The Hermitian metric yields on the real slice $y^μ= 0$, a real symmetric metric $g_{(μν)}$ giving the vacuum Einstein equations, and an antisymmetric part $g_{[μν]}$ that reproduces Maxwell's equations with sources. A single holomorphic gauge connection for $G_{\text{GUT}}$, such as $SU(5)$ or $SO(…

Progenitor Insights of Type IIP SN 2018pq: A Comprehensive Photometric and Spectroscopic Study
Monalisa Dubey, Kuntal Misra, Raya Dastidar, G\'eza Cs\"ornyei, Naveen Dukiya, Bhavya Ailawadhi, Iair Arcavi, K. Azalee Bostroem, Daichi Hiramatsu, Griffin Hossienzadeh, D. Andrew Howell, Curtis McCully, Ajay Kumar Singh
https://

Progenitor Insights of Type IIP SN 2018pq: A Comprehensive Photometric and Spectroscopic Study
We present high-cadence photometric and low-resolution (R $\sim$ 400--700) optical spectroscopic observations of Type IIP supernova, SN~2018pq, which exploded on the outskirts of the galaxy IC~3896A. The optically thick phase (``plateau'') lasts approximately 97 d, the plateau duration of normal Type IIP supernovae. SN~2018pq has a {\em V}-band absolute magnitude of $-16.42 \pm 0.01$ mag at 50 d, resembles normal-luminous supernova, and the V-band decline rate of 0.42$\pm$0.06 mag 50 d$^{-1}$ d…

#PhantastikPrompts 22.06.:
Wie hältst du es mit der Recherche? Recherchierst du vor dem Schreiben, während des Schreibens, vor dem Überarbeiten?
Kommt auf den jeweiligen Fall an.
Für #DieRosenVonElsett recherchiere ich Themen wie "Neuro-Reha", "Ak…

HARNode: A Time-Synchronised, Open-Source, Multi-Device, Wearable System for Ad Hoc Field Studies
Philipp Lepold, Tobias R\"oddiger, Michael Beigl
https://arxiv.org/abs/2506.03219

HARNode: A Time-Synchronised, Open-Source, Multi-Device, Wearable System for Ad Hoc Field Studies
Research into human activity recognition (HAR) suffers from a lack of comprehensive, freely available field data. Commercial systems are rarely open source, offer little expandability, and have shortcomings in node synchronisation, data throughput, placement clarity, setup complexity, and cost. As a result, only a few intuitively placed sensors are often used, and field trials are generally reduced. HARNode addresses these obstacles as a fully open-source hardware and software platform for rapi…

Massive stars exploding in a He-rich circumstellar medium. XI. Diverse evolution of five Ibn SNe 2020nxt, 2020taz, 2021bbv, 2023utc and 2024aej
Z. -Y. Wang, A. Pastorello, Y. -Z. Cai, M. Fraser, A. Reguitti, W. -L. Lin, L. Tartaglia, D. Andrew Howell, S. Benetti, E. Cappellaro, Z. -H. Chen, N. Elias-Rosa, J. Farah, A. Fiore, D. Hiramatsu, E. Kankare, Z. -T. Li, P. Lundqvist, P. A. Mazzali, C. McCully, J. Mo, S. Moran, M. Newsome, E. Padilla Gonzalez, C. Pellegrino, Z. -H. Peng, S. J. S…

Massive stars exploding in a He-rich circumstellar medium. XI. Diverse evolution of five Ibn SNe 2020nxt, 2020taz, 2021bbv, 2023utc and 2024aej
We present the photometric and spectroscopic analysis of five Type Ibn supernovae (SNe): SN 2020nxt, SN 2020taz, SN 2021bbv, SN 2023utc, and SN 2024aej. These events share key observational features and belong to a family of objects similar to the prototypical Type Ibn SN 2006jc. The SNe exhibit rise times of approximately 10 days and peak absolute magnitudes ranging from $-$16.5 to $-$19 mag. Notably, SN 2023utc is the faintest Type Ibn supernova discovered to date, with an exceptionally low r…

An integrable deformed Landau-Lifshitz model with particle production?
Marius de Leeuw, Andrea Fontanella, Juan Miguel Nieto Garc\'ia
https://arxiv.org/abs/2506.13598

An integrable deformed Landau-Lifshitz model with particle production?
We discuss the continuum limit of a non-Hermitian deformation of the Heisenberg XXX spin chain. This model appeared in the classification of $4\times4$ solutions of the Yang--Baxter equation and it has the particular feature that the transfer matrix is non-diagonalisable. We show that the model is given by a Drinfeld twist of the XXX spin chain and its continuum limit is a non-unitary deformation of the Landau-Lifshitz model. We compute the tower of conserved charges for this deformed Landau-Li…

A Detection of Helium in the Bright Superluminous Supernova SN 2024rmj
Harsh Kumar, Edo Berger, Peter K. Blanchard, Sebastian Gomez, Daichi Hiramatsu, Alex Gagliano, Moira Andrews, K. Azalee Bostroem, Joseph Farah, D. Andrew Howell, Curtis McCully
https://arxiv.org/abs/2506.06417

A Detection of Helium in the Bright Superluminous Supernova SN 2024rmj
We present extensive ultraviolet (UV), optical, and near-infrared (NIR) photometric and spectroscopic observations of the nearby hydrogen-poor superluminous supernova (SLSN-I) SN2024rmj at z = 0.1189. SN 2024rmj reached a peak absolute magnitude of Mg $\approx$ -21.9, placing it at the luminous end of the SLSN-I distribution. The light curve exhibits a pronounced pre-peak bump ($\approx$ 60 d before the main peak) and a post-peak bump ($\approx$ 55 d after the main peak). The bulk of the light …