Tootfinder

Eine Erinnerung auch für den beginnenden OB Wahlkampf in #Kiel:
Man kann bei den aussichtsreichsten Kandidaten geteilter Meinung sein über deren Sozialpolitik, Verkehrspolitik, Erfahrungsstand und deren Eignung für das wichtigste Amt der Stadt, aber wo Einigkeit bestehen muss und woran wir die Kandidaten messen sollten, ist ihre Haltung gegen die AfD, gegen ihren Extremismus und für unsere

QCD-inspired description of multiplicity distributions in jets
Yu. L. Dokshitzer, B. R. Webber
https://arxiv.org/abs/2507.07691 https://

QCD-inspired description of multiplicity distributions in jets
We suggest a universal QCD-motivated expression for the Polyakov-KNO multiplicity distributions of hadrons in jets and compare it with data from $e^+e^-$ annihilation experiments. The moments and overall shape of the distributions in full events and quark and gluon jets, over a range of energies, are described with reasonable quantitative precision. In particular, the scaling violation predicted by QCD is seen clearly in the moments and high-multiplicity fluctuations.

The quantum Ramsey number $QR(2,2)$
Andrew Allen, Andre Kornell
https://arxiv.org/abs/2507.04128 https://arxiv.org/pdf/2507.04128

The quantum Ramsey number $QR(2,2)$
Operator systems of matrices can be viewed as quantum analogues of finite graphs. This analogy suggests many natural combinatorial questions in linear algebra. We determine the quantum Ramsey numbers $QR(2,k)$ and the lower quantum Turán numbers $T^\downarrow(n, m)$ with $n > 3m$. In particular, we conclude that $QR(2,2) = 4$ and confirm Weaver's conjecture that $T^\downarrow(4, 1) = 4$. We also obtain a new result for the existence of anticliques in quantum graphs of low dimension.

Wiecie, czego naprawdę nie znoszę w długie weekendy?
Nawet nie zmian rozkładu, ale tego, że dla mniejszych przewoźników, po prostu nie idzie znaleźć informacji, czy w piątek autobusy kursują według rozkładu dla dni roboczych czy weekendowego. I oczywiście jeden z drugim z reguły różnią się tak bardzo, że nawet nie można wybrać jednego kursu, który na pewno pojedzie.
Tak, pomyślałem, żeby jutro rano pojechać do Kórnika. Pewnie nikt tu przypadkiem nie orientuje się, jak jutro jeżdż…

300 mm Wafer-Scale SiN Platform for Broadband Soliton Microcombs Compatible with Alkali Atomic References
Shao-Chien Ou, Alin Antohe, Lewis G. Carpenter, Gregory Moille, Kartik Srinivasan
https://arxiv.org/abs/2506.20895

300 mm Wafer-Scale SiN Platform for Broadband Soliton Microcombs Compatible with Alkali Atomic References
Chip-integrated optical frequency combs (OFCs) based on Kerr nonlinear resonators are of great significance given their scalability and wide range of applications. Broadband on-chip OFCs reaching visible wavelengths are especially valuable as they address atomic clock transitions that play an important role in position, navigation, and timing infrastructure. Silicon nitride (SiN) deposited via low pressure chemical vapor deposition (LPCVD) is the usual platform for the fabrication of chip-integ…

Resource-efficient Variational Block-Encoding
Leon Rullk\"otter, Sebastian Weber, Vamshi Mohan Katukuri, Christian Tutschku, Bharadwaj Chowdary Mummaneni
https://arxiv.org/abs/2507.17658

Resource-efficient Variational Block-Encoding
Block-encoding operators are one of the essential components in quantum algorithms based on Quantum Signal Processing. Their gate complexity largely determines the overall gate complexity of the full algorithm. Using variational methods, we aim to compile block-encoding unitaries with near-optimal resource requirements for a large range of input matrices. We find that the number of variational parameters in the parameterized quantum circuit approaches the number of free parameters in the input …

A new diffuse reflector filament for additive manufacturing of 3D printing finely-segmented plastic scintillator
S. Berns, E. Boillat, S. Hugon, A. Boyarintsev, B. Grynyov, N. Karavaeva, A. Krech, S. Minenko, T. Sibilieva, M. Sibilyev, A. De Roeck, T. Dieminger, U. Kose, B. Li, A. Rubbia, D. Sgalaberna, T. Weber, J. W\"uthrich, X. Zhao
https://

A new diffuse reflector filament for additive manufacturing of 3D printing finely-segmented plastic scintillator
This study presents the development and characterization of a novel white reflective filament suitable for additive manufacturing of finely segmented plastic scintillators using 3D printing. The filament is based on polycarbonate (PC) and polymethyl methacrylate (PMMA) polymers loaded with titanium dioxide (TiO$_2$) and polytetrafluoroethylene (PTFE) to enhance reflectivity. A range of filament compositions and thicknesses was evaluated through optical reflection and transmittance measurements.…

A new Limit for Axion Dark Matter with SPACE
M. A. Akg\"um\"us, N. Salama, J. Egge, E. Garutti, M. Maroudas, L. H. Nguyen, D. Leppla-Weber
https://arxiv.org/abs/2506.18411

A new Limit for Axion Dark Matter with SPACE
The axion, which has yet to be discovered, is a promising candidate for dark matter that emerges from Peccei-Quinn theory. This article presents the search for axion dark matter with the "Student Project for an Axion Cavity Experiment" (SPACE), which is also the first one in Germany. The hypothetical particle was looked for in the mass range from $16.626~\mathrm{μeV}$ to $16.653~\mathrm{μeV}$, corresponding to a frequency range of 4.020 GHz to 4.027 GHz, using a resonant cavity in a peak magn…

AMLgentex: Mobilizing Data-Driven Research to Combat Money Laundering
Johan \"Ostman, Edvin Callisen, Anton Chen, Kristiina Ausmees, Emanuel G{\aa}rdh, Jovan Zamac, Jolanta Goldsteine, Hugo Wefer, Simon Whelan, Markus Reimeg{\aa}rd
https://arxiv.org/abs/2506.13989

AMLgentex: Mobilizing Data-Driven Research to Combat Money Laundering
Money laundering enables organized crime by allowing illicit funds to enter the legitimate economy. Although trillions of dollars are laundered each year, only a small fraction is ever uncovered. This stems from a range of factors, including deliberate evasion by launderers, the rarity of confirmed cases, and the limited visibility each financial institution has into the global transaction network. While several synthetic datasets are available, they fail to model the structural and behavioral …

Evaporation of a deformable droplet under convection
Faraz Salimnezhad, Metin Muradoglu
https://arxiv.org/abs/2507.17547 https://arxiv.org/pdf/2507.17547…

Evaporation of a deformable droplet under convection
Evaporation of a deformable droplet under convection is investigated and the performance of the classical and Abramzon-Sirignano (A-S) models is evaluated. Using the Immersed Boundary/Front-Tracking (IB/FT) method, interface-resolved simulations are performed to examine droplet evaporation dynamics over a wide range of Reynolds ($20 \leq Re \leq 200$), Weber ($0.65 \leq We \leq 9$), and mass transfer ($1 \leq B_M \leq 15$) numbers. It is shown that flow in the wake region is greatly influenced …