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Wanda:
🎵 Bologna
#NowPlaying #Wanda
https://milemedeaf.bandcamp.com/track/bologna-english-type-creepy-lounge-version-wanda-cover
https://open.spotify.com/track/0JOwusmP7R2h0faPG9p7SY

Generation of frequency entanglement by rotating Doppler effect
Bolong Yi, Ling Chen, Baocheng Zhang
https://arxiv.org/abs/2506.09488 https://

Generation of frequency entanglement by rotating Doppler effect
We propose a method to generate the frequency entanglement, allowing a continuous generation of entangled two-photon states in a hybrid degree of freedom by post-manipulation. Our method is based on type-II spontaneous parametric down-conversion in a nonlinear crystal and the rotation Doppler effect by rotating the q-plates, without preset discrete frequency entanglement. This allows the arbitrary modification of frequency entangled photons in a wide frequency range at room temperature, offerin…

400 years ago #OTD the astronomer Giovanni Domenico Cassini a.k.a. #Cassini I (because they would become an astro-dynasty) was born: while #meridiana of Bologna: https://en.wikipedia.org/wiki/San_Petronio,_Bologna

This https://arxiv.org/abs/2505.24564 has been replaced.
initial toot: https://mastoxiv.page/@a…

Quantum-Ready Microwave Detection with Scalable Graphene Bolometers in the Strong Localization Regime
Exploiting quantum interference of charge carriers, epitaxial graphene grown on silicon carbide emerges as a game-changing platform for ultra-sensitive bolometric sensing, featuring an intrinsic resistive thermometer response unmatched by any other graphene variant. By achieving low and uniform carrier densities, we have accessed a new regime of strong charge localization that dramatically reduces thermal conductance, significantly enhancing bolometer performance. Here we present scalable graph…

Last preparations for the upcoming International Semantic Web Research Summer School 2025, before traveling the last leg of the journey from Bologna to Bertinoro tomorrow.
@… #semweb #semanticweb

Estimating Bolometric Luminosities of Type 1 Quasars with Self-Organizing Maps
Jie Chen, Linhua Jiang, Shengxiu Sun, Zijian Zhang, Mouyuan Sun
https://arxiv.org/abs/2506.04329

Estimating Bolometric Luminosities of Type 1 Quasars with Self-Organizing Maps
We present a new method to calculate bolometric luminosities for unobscured, type 1 quasars with multi-band photometric data. Bolometric luminosity is a fundamental property to understand quasars and it is commonly estimated from monochromatic luminosities using bolometric corrections that often neglect quasar SED diversity. We take advantage of the fact that most quasars now have multi-band observations from UV to mid-IR, and construct SEDs for a well-defined sample of SDSS quasars at $0.5\leq…

@… I guess that this would be one possible direction. But maybe you don’t even have to go that far; Bologna allows for quite some flexibility, of which some universities/faculties/institutes don’t really take advantage. I'm thinking of module assessments here: instead of assessing courses individually, you could have an exam that covers the whole…

@… I guess that this would be one possible direction. But maybe you don’t even have to go that far; Bologna allows for quite some flexibility, of which some universities/faculties/institutes don’t really take advantage. I'm thinking of module assessments here: instead of assessing courses individually, you could have an exam that covers the whole…

Gravitational Quasinormal Modes and Grey-Body Factors of Bonanno-Reuter Regular Black Holes
S. V. Bolokhov, Milena Skvortsova
https://arxiv.org/abs/2507.07196

Gravitational Quasinormal Modes and Grey-Body Factors of Bonanno-Reuter Regular Black Holes
We study gravitational perturbations of the Bonanno--Reuter quantum-corrected black hole arising in the asymptotic safety scenario, focusing on QNMs and grey-body factors. Assuming the RG parameter $\tildeω$ is fixed to its phenomenologically motivated value, we treat the interpolation parameter $γ$ as free and investigate how it modifies the black hole's response to axial gravitational perturbations. Quasinormal frequencies are computed using the sixth-order WKB method with Padé approximant…

AT2019cmw: A highly luminous, cooling featureless TDE candidate from the disruption of a high mass star in an early-type galaxy
Jacob Wise, Daniel Perley, Nikhil Sarin, Tatsuya Matsumoto, K-Ryan Hinds, Yuhan Yao, Jesper Sollerman, Steve Schulze, Aleksandra Bochenek, Michael W. Coughlin, Kishalay De, Richard Dekany, Sara Frederick, Christoffer Fremling, Suvi Gezari, Matthew J. Graham, Anna Y. Q. Ho, Shrinivas Kulkarni, Russ R. Laher, Conor Omand, Natalya Pletskova, Yashvi Sharma, Kirsty…

AT2019cmw: A highly luminous, cooling featureless TDE candidate from the disruption of a high mass star in an early-type galaxy
We present optical/UV photometric and spectroscopic observations, as well as X-ray and radio follow-up, of the extraordinary event AT2019cmw. With a peak bolometric luminosity of ~$\mathrm{10^{45.6}\,erg\,s^{-1}}$, it is one of the most luminous thermal transients ever discovered. Extensive spectroscopic follow-up post-peak showed only a featureless continuum throughout its evolution. This, combined with its nuclear location, blue colour at peak and lack of prior evidence of an AGN in its host …