Tootfinder

From stripes to hexagons: strain-induced 2D Pb phases confined between graphene and SiC
Markus Gruschwitz, Sergii Sologub, Chitran Ghosal, Zamin Mamiyev, Yuran Niu, Alexei Zakharov, Christoph Tegenkamp
https://arxiv.org/abs/2506.10791

From stripes to hexagons: strain-induced 2D Pb phases confined between graphene and SiC
The intercalation of metals beneath graphene offers a powerful route to stabilizing and protecting novel two-dimensional (2D) phases. The epitaxial growth of Pb monolayers on SiC(0001), combined with the relatively large spacing of the suspended graphene, makes this system particularly distinctive. Using low-energy electron diffraction (LEED) and various microscopy techniques -- including scanning electron microscopy (SEM), scanning tunneling microscopy (STM), and low-energy electron microscopy…

Improved belief propagation is sufficient for real-time decoding of quantum memory
Tristan M\"uller, Thomas Alexander, Michael E. Beverland, Markus B\"uhler, Blake R. Johnson, Thilo Maurer, Drew Vandeth
https://arxiv.org/abs/2506.01779

Improved belief propagation is sufficient for real-time decoding of quantum memory
We introduce a new heuristic decoder, Relay-BP, targeting real-time quantum circuit decoding for large-scale quantum computers. Relay-BP achieves high accuracy across circuit-noise decoding problems: significantly outperforming BP+OSD+CS-10 for bivariate-bicycle codes and comparable to min-weight-matching for surface codes. As a lightweight message-passing decoder, Relay-BP is inherently parallel, enabling rapid low-footprint decoding with FPGA or ASIC real-time implementations, similar to stan…

This https://arxiv.org/abs/2406.07575 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On the largest prime factor of quadratic polynomials
Let $x$ denote a sufficiently large integer. We show that the recent result of Grimmelt and Merikoski actually yields the largest prime factor of $n^2 +1$ is greater than $x^{1.317}$ infinitely often. As an application, we give a new upper bound for the number of integers $n \leqslant x$ which $n^2 +1$ has a primitive divisor.

Constructive community race: full-density spiking neural network model drives neuromorphic computing
Johanna Senk, Anno Kurth, Steve Furber, Tobias Gemmeke, Bruno Golosio, Arne Heittmann, James C. Knight, Eric M\"uller, Tobias Noll, Thomas Nowotny, Gorka Peraza Coppola, Luca Peres, Oliver Rhodes, Andrew Rowley, Johannes Schemmel, Tim Stadtmann, Tom Tetzlaff, Gianmarco Tiddia, Sacha J. van Albada, Jos\'e Villamar, Markus Diesmann

Constructive community race: full-density spiking neural network model drives neuromorphic computing
The local circuitry of the mammalian brain is a focus of the search for generic computational principles because it is largely conserved across species and modalities. In 2014 a model was proposed representing all neurons and synapses of the stereotypical cortical microcircuit below $1\,\text{mm}^2$ of brain surface. The model reproduces fundamental features of brain activity but its impact remained limited because of its computational demands. For theory and simulation, however, the model was …

Effects of thrust, tip-speed ratio, and time variations on wind-turbine wakes at high Reynolds numbers
Nathaniel J. Wei, Adina Y. Fleisher, John W. Kurelek, Marcus N. Hultmark
https://arxiv.org/abs/2505.22788

Effects of thrust, tip-speed ratio, and time variations on wind-turbine wakes at high Reynolds numbers
The evolution of rotor wakes is an important problem for a wide range of wind-energy and aerodynamic applications, and is of particular relevance to dynamic wake control strategies for wind farms. This study aims to clarify the influence of turbine thrust and tip-speed ratio on tip-vortex breakdown and the evolution of the near wake. Scaling arguments show that these parameters contribute to the wake dynamics in distinct ways, and that neither thrust nor tip-speed ratio are alone sufficient to …