Tootfinder

The Influence of Uniform Magnetic Fields on Strong Field Gravitational Lensing by Kerr Black Holes
Amnish Vachher, Arun Kumar, Sushant G. Ghosh
https://arxiv.org/abs/2508.21100 …

The Influence of Uniform Magnetic Fields on Strong Field Gravitational Lensing by Kerr Black Holes
We investigate strong gravitational lensing using magnetized Kerr black holes (MKBHs), which are accurate Kerr-Bertotti-Robinson solutions for Kerr black holes in a uniform magnetic field with additional magnetic field strength $B$ apart from mass $M$ and spin $a$. Unlike previous magnetized spacetimes, the MKBH geometry is Petrov type D, devoid of conical singularities, allowing photons to reach asymptotic infinity and making the concept astrophysically feasible. We use the strong deflection l…

Static magnetic control of light emission in plasmonic nanojunctions
Shusen Liao, Jaime Abad-Arredondo, Ken W. Ssennyimba, Qian Ye, Alessandro Alabastri, Antonio I. Fern\'andez-Dom\'inguez, Francisco J Garc\'ia-Vidal, Douglas Natelson
https://arxiv.org/abs/2509.25333

Static magnetic control of light emission in plasmonic nanojunctions
Localized surface plasmon resonances (LSPRs) in metal nanoparticles have been studied extensively through scattering and absorption. Static magnetic field-induced changes in plasmonic far-field response stem from the classical Hall effect and are generally very small in noble metals within the visible frequency range at readily accessible magnetic fields. Planar plasmonic tunnel junctions allow the study of nanogap LSPRs through current-driven light emission. We find that the electroluminescenc…

Development of a microwave SQUID multiplexer for magnetic microbolometers
N. M\"uller, J. Bonilla-Neira, J. Geria, M. Garc\'ia Redondo, L. Ferreyro, M. Hampel, M. Wegner, A. Almela, S. Kempf
https://arxiv.org/abs/2509.23507

Development of a microwave SQUID multiplexer for magnetic microbolometers
The search for primordial B-modes in the cosmic microwave background (CMB) requires highly sensitive and scalable detector systems. The magnetic microbolometer (MMB) is an emerging detector concept that exploits the magnetic properties of paramagnetic materials at sub-kelvin temperatures, offering bolometers with a high dynamic range and low intrinsic noise. In recent years, the microwave SQUID multiplexer ($μ$MUX) has become a key technology to efficiently read large low temperature detector …

Electron neural closure for turbulent magnetosheath simulations: energy channels
George Miloshevich, Luka Vranckx, Felipe Nathan de Oliveira Lopes, Pietro Dazzi, Giuseppe Arr\`o, Giovanni Lapenta
https://arxiv.org/abs/2510.00282

Electron neural closure for turbulent magnetosheath simulations: energy channels
In this work, we introduce a non-local five-moment electron pressure tensor closure parametrized by a Fully Convolutional Neural Network (FCNN). Electron pressure plays an important role in generalized Ohm's law, competing with electron inertia. This model is used in the development of a surrogate model for a fully kinetic energy-conserving semi-implicit Particle-in-Cell simulation of decaying magnetosheath turbulence. We achieve this by training FCNN on a representative set of simulations with…

Importance of localized dilatation and distensibility in identifying determinants of thoracic aortic aneurysm with neural operators
David S. Li, Somdatta Goswami, Qianying Cao, Vivek Oommen, Roland Assi, Jay D. Humphrey, George E. Karniadakis
https://arxiv.org/abs/2509.26576

Importance of localized dilatation and distensibility in identifying determinants of thoracic aortic aneurysm with neural operators
Thoracic aortic aneurysms (TAAs) arise from diverse mechanical and mechanobiological disruptions to the aortic wall that increase the risk of dissection or rupture. Evidence links TAA development to dysfunctions in the aortic mechanotransduction axis, including loss of elastic fiber integrity and cell-matrix connections. Because distinct insults create different mechanical vulnerabilities, there is a critical need to identify interacting factors that drive progression. Here, we use a finite ele…

The Rosario Dataset v2: Multimodal Dataset for Agricultural Robotics
Nicolas Soncini, Javier Cremona, Erica Vidal, Maximiliano Garc\'ia, Gast\'on Castro, Taih\'u Pire
https://arxiv.org/abs/2508.21635

The Rosario Dataset v2: Multimodal Dataset for Agricultural Robotics
We present a multi-modal dataset collected in a soybean crop field, comprising over two hours of recorded data from sensors such as stereo infrared camera, color camera, accelerometer, gyroscope, magnetometer, GNSS (Single Point Positioning, Real-Time Kinematic and Post-Processed Kinematic), and wheel odometry. This dataset captures key challenges inherent to robotics in agricultural environments, including variations in natural lighting, motion blur, rough terrain, and long, perceptually alias…

Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk
A. Dutrey, O. Denis-Alpizar, S. Guilloteau, C. Foucher, S. Gavino, D. Semenov, V. Pietu, E. Chapillon, L. Testi, E. Dartois, E. DiFolco, K. Furuya, U. Gorti, N. Grosso, Th. Henning, J. M. Hur\'e, \'A. K\'osp\'al, F. Le Petit, L. Majumdar, R. Meshaka, H. Nomura, N. T. Phuong, M. Ruaud, Y. W. Tang, S. Wolf

Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk
Context: Investigating the vertical distribution of molecular content in protoplanetary disks remains difficult in most disks mildly inclined along the line of sight. In contrast, edge-on disks provide a direct (tomographic) view of the 2D molecular brightness. Aims: We study the radial and vertical molecular distribution as well as the gas temperature and density by observing the Keplerian edge-on disk surrounding the Flying Saucer, a Class II object located in Ophiuchus. Methods: We use new a…

Black Hole Polarimetry II: The Connection Between Spin and Polarization
George N. Wong, Andrew Chael, Alexandru Lupsasca, Eliot Quataert
https://arxiv.org/abs/2509.22639 https:/…

Black Hole Polarimetry II: The Connection Between Spin and Polarization
We study synchrotron polarization in spatially resolved horizon-scale images, such as those produced by the Event Horizon Telescope (EHT). In both general relativistic magnetohydrodynamic (GRMHD) simulations as well as simplified models of the black hole magnetosphere, the polarization angle, quantified by the complex observable arg(beta_2), depends strongly and systematically on the black hole spin. This relationship arises from the coupling between spin and the structure of the magnetic field…

Self-organization mechanism in Bridgman-grown MnBi2Te4/(Bi2Te3)n: influence on layer sequence and magnetic properties
Pawe{\l} Skupi\'nski, Kamil Sobczak, Katarzyna Gas, Anna Reszka, Yadhu K. Edathumkandy, Jakub Majewski, Krzysztof Grasza, Maciej Sawicki, Agnieszka Wo{\l}o\'s
https://arxiv.org/abs/2509.22303

Self-organization mechanism in Bridgman-grown MnBi2Te4/(Bi2Te3)n: influence on layer sequence and magnetic properties
The growth of high-quality magnetic topological insulator crystals by the Bridgman method remains challenging due to thermodynamic limitations inherent to this technique. Nevertheless, this approach continues to provide bulk materials with significantly reduced free carrier concentrations compared to epitaxial methods. Here, we investigate the Inverted Vertical Bridgman growth of MnBi2Te4/(Bi2Te3)n crystals, with particular emphasis on the structural ordering of MnBi2Te4 septuple layers within …

Magnetic order tuning of excitons in the magnetic semiconductor CrCl$_3$ through strain
Ali Ebrahimian, Francisco J. Garc\'ia-Vidal, Juan J. Palacios
https://arxiv.org/abs/2509.20761

Magnetic order tuning of excitons in the magnetic semiconductor CrCl$_3$ through strain
Magnon-exciton coupling provides an unprecedented opportunity for the optical tunability of spin information and, viceversa, for the magnetic control of the optical response. Few-layered magnets are an ideal platform for the experimental study of this coupling, in part due to the strong excitonic character of the optical response in (quasi-)two dimensions. Here, we demonstrate a strong dependence of the excitonic oscillator strength on the magnetic order in a monolayer of chromium trichloride C…