Tootfinder

Effective uniaxial dielectric function tensor and optical phonons in ($\bar{2}01$)-plane oriented $\beta$-Ga$_2$O$_3$ films with equally-distributed six-fold rotation domains
Alyssa Mock, Steffen Richter, Alexis Papamichail, Vallery Stanishev, Misagh Ghezellou, Jawad Ul-Hassan, Andreas Popp, Saud Bin Anooz, Daniella Gogova, Praneeth Ranga, Sriram Krishnamoorthy, Rafal Korlacki, Mathias Schubert, Vanya Darakchieva

Effective uniaxial dielectric function tensor and optical phonons in ($\bar{2}01$)-plane oriented $β$-Ga$_2$O$_3$ films with equally-distributed six-fold rotation domains
Monoclinic $β$-Ga$_2$O$_3$ films grown on $c$-plane sapphire have been shown to exhibit six $(\bar{2}01)$-plane oriented domains, which are equally-spaced-by-rotation around the surface normal and equally-sized-by-volume that render the film optical response effectively uniaxial. We derive and discuss an optical model suitable for ellipsometry data analysis of such films. We model mid- and far-infrared ellipsometry data from undoped and electrically insulating films with an effective uniaxial …

Drift-Energy Replacement Effect in Multi-Ion Magnetized Plasmas
M. E. Mlodik, E. J. Kolmes, N. J. Fisch
https://arxiv.org/abs/2405.05829 https://

Drift-Energy Replacement Effect in Multi-Ion Magnetized Plasmas
Fast rotation can improve the stability and confinement of fusion plasmas. However, to maintain a rapidly rotating fusion plasma in steady state, significant energy must be invested in spinning up each incoming fuel ion. We show here that, under the right circumstances, collisional cross-field radial fueling can directly transfer drift energy between outgoing and incoming ions without the need for external power recirculation, thereby reducing the energy costs of maintaining the rotation.

Irrational rotations and 2-filling rays
Lvzhou Chen, Alexander J. Rasmussen
https://arxiv.org/abs/2403.00097 https://arxiv.org/pdf/24…

Irrational rotations and 2-filling rays
We study a skew product transformation associated to an irrational rotation of the circle [0,1]/~. This skew product keeps track of the number of times an orbit of the rotation lands in the two complementary intervals of {0,1/2} in the circle. We show that under certain conditions on the continued fraction expansion of the irrational number defining the rotation, the skew product transformation has certain dense orbits. This is in spite of the presence of numerous non-dense orbits. We use this …

I just found a crowdfunding project for a paintball security system - a camera that shoots with paint balls if the AI doesn't recognize the intruder.
But it's quite pricey, I think I'll wait for a FOSS / Maker project that does the same.
https://www.

Haldane graphene billiards versus relativistic neutrino billiards
Dung Xuan Nguyen, Barbara Dietz
https://arxiv.org/abs/2404.07679 https://

Haldane graphene billiards versus relativistic neutrino billiards
We study fluctuation properties in the energy spectra of finite-size honeycomb lattices, graphene billiards, subject to the Haldane-model onsite potential and next-nearest neighbor interaction at critical points, referred to as Haldane graphene billiards in the following. The billiards had the shapes of a rectangular billiard with integrable dynamics, one with chaotic dynamics, and one whose shape has, in addition, threefold rotational symmetry. It had been shown that the spectral properties of…

Nanometer thick magneto-optical iron garnet films
Nika Gribova (Russian Quantum Center, Moscow Institute of Physics and Technology), Sebastyan Osmanov (V.I. Vernadsky Crimean Federal University), Sergey Lyashko (V.I. Vernadsky Crimean Federal University), Polina Shilina (Russian Quantum Center), Tatiana Mikhailova (V.I. Vernadsky Crimean Federal University), Sergey Polulyakh (V.I. Vernadsky Crimean Federal University), Vladimir Berzhansky (V.I. Vernadsky Crimean Federal University), Xi…

Nanometer thick magneto-optical iron garnet films
Here we demonstrate nanometer thick iron garnet films suitable for the magneto-optical applica-tions. Bismuth-substituted iron garnet films of compositions Bi{_1}Y{_2}Fe{_5}O{_{12}} and Bi{_1}Tm{_2}Fe{_5}O{_{12}} deposited on gadolinium gallium garnet substrate are fabricated and characterized. Their thicknesses range from 2 to 10 nm, which corresponds to just a few crystal lattice constants. Faraday rotation of the nanofilms reaches 29.7 deg/μm at 420 nm which is comparable and even a bit bet…

Woah! Yesterday I was actually good in Really Bad Chess for a change!
#Puzzmo

Higher-order topology protected by latent crystalline symmetries
L. Eek, M. R\"ontgen, A. Moustaj, C. Morais Smith
https://arxiv.org/abs/2405.02704 ht…

Higher-order topology protected by latent crystalline symmetries
We demonstrate that rotation symmetry is not a necessary requirement for the existence of fractional corner charges in Cn-symmetric higher-order topological crystalline insulators. Instead, it is sufficient to have a latent rotation symmetry, which may be revealed upon performing an isospectral reduction on the system. We introduce the concept of a filling anomaly for latent crystalline symmetric systems, and propose modified topological invariants. The notion of higher- order topology in two d…

Shape of 12C
Masaaki Kimura, Yasutaka Taniguchi
https://arxiv.org/abs/2403.05287 https://arxiv.org/pdf/2403.05287

Shape of 12C
We have examined the hypothesis by Bijker and Iachello who asserted that 12C has an internal structure with three alpha particles arranged in a triangular shape, leading to the formation of the ground rotational band consisting of 0+, 2+, 3-, 4$^\pm$ and 5- states. Following this idea, we reconstructed the intrinsic shape of 12C using experimental electron scattering data with minimal theoretical assumption. Our sole assumption was that the observed 0+, 2+, 3-, and 4+ states share a common inte…