Tootfinder

Twist-Angle-Controlled Anomalous Gating in Bilayer Graphene/BN Heterostructures
G. Maffione, L. S. Farrar, M. Kapfer, K. Watanabe, T. Taniguchi, H. Aubin, D. Mailly, R. Ribeiro-Palau
https://arxiv.org/abs/2506.05548

Twist-Angle-Controlled Anomalous Gating in Bilayer Graphene/BN Heterostructures
Anomalous gating effects-such as gate ineffectiveness and pronounced hysteresis-have been observed in graphene-based systems encapsulated in boron nitride (BN) and linked to a possible ferroelectric state. However, their origin, stability, and reproducibility remain under debate. Here, we present charge transport experiments in dual-gated, dynamically rotatable van der Waals heterostructures based on bilayer graphene encapsulated in BN. Remarkably, the angular degree of freedom acts as an ON/OF…

This https://arxiv.org/abs/2410.22882 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+ e^-$ collisions
We present the results of Phase I of an ongoing review of Monte Carlo tools relevant for low-energy hadronic cross sections. This includes a detailed comparison of Monte Carlo codes for electron-positron scattering into a muon pair, pion pair, and electron pair, for scan and radiative-return experiments. After discussing the various approaches that are used and effects that are included, we show differential cross sections obtained with AfkQed, BabaYaga@NLO, KKMC, MCGPJ, McMule, Phokhara, and S…

This https://arxiv.org/abs/2408.12585 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

A fluctuation-dissipation theorem perspective on radiative responses to temperature perturbations
Radiative forcing drives warming in the Earth system, leading to changes in sea surface temperatures (SSTs) and associated radiative feedbacks. The link between changes in the top-of-the-atmosphere (TOA) net radiative flux and SST patterns, known as the "pattern effect", is typically diagnosed by studying the response of atmosphere-only models to SST perturbations. In this work, we diagnose the pattern effect through response theory, by performing idealized warming perturbation experiments from…

Adjusting Tissue Puncture Omnidirectionally In Situ with Pneumatic Rotatable Biopsy Mechanism and Hierarchical Airflow Management in Tortuous Luminal Pathways
Botao Lin, Tinghua Zhang, Sishen Yuan, Tiantian Wang, Jiaole Wang, Wu Yuan, Hongliang Ren
https://arxiv.org/abs/2506.03017

Adjusting Tissue Puncture Omnidirectionally In Situ with Pneumatic Rotatable Biopsy Mechanism and Hierarchical Airflow Management in Tortuous Luminal Pathways
In situ tissue biopsy with an endoluminal catheter is an efficient approach for disease diagnosis, featuring low invasiveness and few complications. However, the endoluminal catheter struggles to adjust the biopsy direction by distal endoscope bending or proximal twisting for tissue sampling within the tortuous luminal organs, due to friction-induced hysteresis and narrow spaces. Here, we propose a pneumatically-driven robotic catheter enabling the adjustment of the sampling direction without t…

This https://arxiv.org/abs/2501.06125 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Low-rank variance reduction for uncertain radiative transfer with control variates
The radiative transfer equation models various physical processes ranging from plasma simulations to radiation therapy. In practice, these phenomena are often subject to uncertainties. Modeling and propagating these uncertainties requires accurate and efficient solvers for the radiative transfer equations. Due to the equation's high-dimensional phase space, fine-grid solutions of the radiative transfer equation are computationally expensive and memory-intensive. In recent years, dynamical low-r…

#RettetdieBerge
„Rettet die Berge – kein Rückschritt beim Alpenschutz!“
Unter diesem Namen hat sich ein breites Bündnis aus Umweltverbänden und politischen Akteur:innen zusammengeschlossen, um gegen das geplante "Dritte Modernisierungsgesetz" der Bayerischen Staatsregierung zu protestieren. Unter dem Vorwand des Bürokratieabbaus sollen Umweltauflagen beim Bau von Skipisten, Beschneiungsanlagen und Seilbahnen deutlich gelockert werden. Dies soll durch die Anhebung der Schwellenwerte für Umweltverträglichkeitsprüfungen (UVP) in drei verschiedenen Gesetzen erfolgen.
Ihr könnt hier für die Berge und gegen das Modernisierungsgesetz unterschreiben (und bitte teilen):
#Alpen #Berge #Bayern #xp

Using the Coolest Ae Stars to Constrain Circumstellar Disk Viscosity
R. Anusha, T. A. A. Sigut
https://arxiv.org/abs/2506.04486 https://

Using the Coolest Ae Stars to Constrain Circumstellar Disk Viscosity
Classical Ae (CAe) stars are main sequence, A-type stars with Hα emission but no signature of dust. They are thought to be the cool extension of the classical Be stars to lower masses. Recent surveys based on Hα spectroscopy have significantly increased the number of known CAe stars, with the population extending to spectral types as cool as A4 (Teff approx. 8500 K). We compute the temperature structure of gaseous, circumstellar disks around A-type stars, including both radiative heating from…

AGNI: A radiative-convective model for lava planet atmospheres
Harrison Nicholls, Raymond Pierrehumbert, Tim Lichtenberg
https://arxiv.org/abs/2506.00091 h…

AGNI: A radiative-convective model for lava planet atmospheres
It is important that we are able to accurately model the atmospheres of (exo)planets. This is because atmospheres play a central role in setting a planet's thermochemical environment at a given point in time, and also in regulating how it evolves over geological timescales. Additionally, it is primarily by observation of their atmospheres that we are able to characterise exoplanets. There is particular demand for accurate models in the context of so-called lava worlds: planets with molten inter…

Exciton-Exciton Annihilation Mediated by Many-Body Coulomb and Phonon Interactions: An Ab Initio Study
Guy Vosco, Sivan Refaely-Abramson
https://arxiv.org/abs/2506.05223

Exciton-Exciton Annihilation Mediated by Many-Body Coulomb and Phonon Interactions: An Ab Initio Study
Exciton-exciton annihilation (EEA), in which two excitons interact to generate high-energy excitations, is an important non-radiative channel in light-induced excited-state relaxation. When efficient, this process offers an alternative route to exciton emission, potentially allowing extended energetically excited particles' lifetime and coherence. These properties are significant in designing and understanding materials-based quantum devices, particularly for low-dimensional semiconductors. Her…

Modelling shadows in scattered light observations as signals from companions in protoplanetary discs
Deniz Akansoy, Helen C. Petrou, Giulia Ballabio, Anna B. T. Penzlin
https://arxiv.org/abs/2506.04415

Modelling shadows in scattered light observations as signals from companions in protoplanetary discs
Over the past decade, SPHERE scattered light observations of protoplanetary discs have revealed previously unseen features with unprecedented resolution. One such feature are radial streaks of reduced brightness that are commonly interpreted as shadows. A possible cause for these shadows is an embedded companion within the disc. In this work, we use 3D radiative transfer simulations with RADMC-3D to investigate the shadowing effects of embedded companions across a range of orbital distances (5-…