Tootfinder

A Parametric Study on the Pulsation of Burner-Stabilized CH4-O2 Flames Moderated by CO2 Addition -- Frequencies, Modes and Regime Diagrams
Xiangyu Nie, Shuoxun Zhang, Shengkai Wang
https://arxiv.org/abs/2507.10905

A Parametric Study on the Pulsation of Burner-Stabilized CH4-O2 Flames Moderated by CO2 Addition -- Frequencies, Modes and Regime Diagrams
This study investigated the pulsating instability of burner-stabilized premixed CH4-O2 flames at various levels of CO2 dilution. Experiments were conducted using a water-cooled porous-plug burner of 18 mm diameter over a wide range of mixture compositions and flow rates, during which time-resolved measurements of flame chemiluminescence and gas temperature were obtained. The primary oscillation frequencies of the pulsating flames were determined using fast Fourier transform and harmonic power a…

Quantum Advantage in Storage and Retrieval of Isometry Channels
Satoshi Yoshida, Jisho Miyazaki, Mio Murao
https://arxiv.org/abs/2507.10784 https://…

Quantum Advantage in Storage and Retrieval of Isometry Channels
Storage and retrieval refer to the task of encoding a quantum channel $Λ$ into a quantum state, known as the program state, such that the channel can later be retrieved. This task is closely related to quantum channel estimation, where multiple queries to $Λ$ are used to prepare a quantum state $ϕ_Λ$ that encodes information about the channel. The channel can then be retrieved by measuring $ϕ_Λ$, following a measure-and-prepare strategy. In this work, we analyze the asymptotic performance…

Information Field Theory based Event Reconstruction for Cosmic Ray Radio Detectors
Simon Str\"ahnz, Tim Huege, Torsten En{\ss}lin, Karen Terveer, Anna Nelles
https://arxiv.org/abs/2507.10738

Information Field Theory based Event Reconstruction for Cosmic Ray Radio Detectors
Detection of extensive air showers with radio antennas is an appealing technique in cosmic ray physics. However, because of the high level of measurement noise, current reconstruction methods still leave room for improvement. Furthermore, reconstruction efforts typically focus only on a single aspect of the signal, such as the energy fluence or arrival time. Bayesian inference is then a natural choice for a holistic approach to reconstruction, yet, this problem would be ill-posed, since the ele…

Coulomb blockade thermometry based nanocalorimetry
Mari C. Cole, Maximilian T. Pelly, Craig V. Topping, Thomas Reindl, Ulrike Waizmann, J\"urgan Weis, Andreas W. Rost
https://arxiv.org/abs/2507.11327

Coulomb blockade thermometry based nanocalorimetry
Specific heat is a powerful probe offering insights into the entropy and excitation spectrum of the studied material. While it is well established, a key challenge remains the measurements of microcrystals or thin films especially in the sub-Kelvin, high magnetic field regime. Here we present a setup combining the high sensitivity of SiN$_x$ membrane based calorimetry with the absolute accuracy of Coulomb blockade thermometry to realise a nanocalorimeter for such tasks. The magnetic field indep…

On the origin of the E1 electron trap level in GaN and dilute AlxGa1-xN films
Piotr Kruszewski, Jose Coutinho, Vladimir P. Markevich, Pawel Prystawko, Lijie Sun, Jerzy Plesiewicz, Chris A. Dawe, Matthew P. Halsall, Anthony R. Peaker
https://arxiv.org/abs/2506.10566

On the origin of the E1 electron trap level in GaN and dilute AlxGa1-xN films
The results of high-resolution Laplace deep-level transient spectroscopy (L-DLTS) measurements applied to the E1 and FeGa electron traps in dilute AlxGa1-xN films (x = 0.063), grown by metal-organic vapor phase epitaxy (MOVPE) on Ammono-GaN substrates, are presented. It is shown that the electron emission signals associated with the E1 donor and the FeGa acceptor levels split into individual components due to the aluminium fluctuations in the nearest neighbour shells around the E1 and FeGa defe…

Observation of the Shadows of the Moon and Sun Using the Pierre Auger Observatory at an Average Energy of $7\times10^{17}\,$eV
Katar\'ina \v{S}imkov\'a (for the Pierre Auger Collaboration)
https://arxiv.org/abs/2507.08582

Observation of the Shadows of the Moon and Sun Using the Pierre Auger Observatory at an Average Energy of $7\times10^{17}\,$eV
The interaction of cosmic rays with celestial bodies such as the Moon or the Sun produces a shadow in the arrival direction distribution of the cosmic rays reaching the Earth. Such deficits from an isotropic flux have been observed by astroparticle observatories below energies of $10^{15}\,$eV. Above this energy, measurements were limited due to the low number of events as a result of the steeply falling cosmic-ray flux with energy. With more than 10.6 million events recorded during 20 years of…

"..some residents in #Ballymena have started to mark their front doors to indicate their nationality to avoid attack.."
I lived in this town, Ian Paisley's home town and DUP core territory, for 3 years as a teenager. Not been back.
It was characterised by narrow-mindedness and bigotry then in the 60s.
The last place to concentrate migrants, if that is what has happene…

Police injured, houses burned in second night of riots in Northern Ireland
Rioters said to target ‘foreigners’ in Northern Ireland town following alleged sexual assault of local teenage girl.

Generalist Models in Medical Image Segmentation: A Survey and Performance Comparison with Task-Specific Approaches
Andrea Moglia (Politecnico di Milano), Matteo Leccardi (Politecnico di Milano), Matteo Cavicchioli (Politecnico di Milano), Alice Maccarini (Universit\`a di Pavia), Marco Marcon (Politecnico di Milano), Luca Mainardi (Politecnico di Milano), Pietro Cerveri (Politecnico di Milano, Universit\`a di Pavia)

Generalist Models in Medical Image Segmentation: A Survey and Performance Comparison with Task-Specific Approaches
Following the successful paradigm shift of large language models, leveraging pre-training on a massive corpus of data and fine-tuning on different downstream tasks, generalist models have made their foray into computer vision. The introduction of Segment Anything Model (SAM) set a milestone on segmentation of natural images, inspiring the design of a multitude of architectures for medical image segmentation. In this survey we offer a comprehensive and in-depth investigation on generalist models…

Majorana edge reconstruction and the $\nu=5/2$ non-Abelian thermal Hall puzzle
Tev\v{z} Lotri\v{c}, Taige Wang, Michael P. Zaletel, Steven H. Simon, S. A. Parameswaran
https://arxiv.org/abs/2507.07161

Majorana edge reconstruction and the $ν=5/2$ non-Abelian thermal Hall puzzle
Pioneering thermal transport measurements on two-dimensional electron gases in high magnetic fields have demonstrated that the quantized Hall state at filling factor $ν=5/2$ has a thermal Hall conductance $κ$ quantized in half-integer multiples of $κ_0 = {π^2 k_B^2 T}/{3h}$. Half-integer $κ/κ_0$ is a signature of neutral Majorana edge modes, in turn linked to the presence of non-Abelian anyon excitations in the bulk. However, the experimentally observed value of $κ$ corresponds to the 'P…

Generalized measurements for Bell tests in different probability spaces
Alfredo Luis
https://arxiv.org/abs/2506.07496 https://arxiv.o…

Generalized measurements for Bell tests in different probability spaces
Bell tests are of profound statistical nature. Besides physical considerations, the proper understanding of their implications should involve detailed statistical analyses. In this regard, recent works have shown that their consequences and interpretations depend on the probability space adopted. Some other recent works have also shown that generalized measurements may allow to further exploit the statistics of Bell-like tests. Following these ideas, in this work we show that one and the same e…