Tootfinder

AEOS: Active Environment-aware Optimal Scanning Control for UAV LiDAR-Inertial Odometry in Complex Scenes
Jianping Li, Xinhang Xu, Zhongyuan Liu, Shenghai Yuan, Muqing Cao, Lihua Xie
https://arxiv.org/abs/2509.09141

AEOS: Active Environment-aware Optimal Scanning Control for UAV LiDAR-Inertial Odometry in Complex Scenes
LiDAR-based 3D perception and localization on unmanned aerial vehicles (UAVs) are fundamentally limited by the narrow field of view (FoV) of compact LiDAR sensors and the payload constraints that preclude multi-sensor configurations. Traditional motorized scanning systems with fixed-speed rotations lack scene awareness and task-level adaptability, leading to degraded odometry and mapping performance in complex, occluded environments. Inspired by the active sensing behavior of owls, we propose A…

the Times being too Interesting is a trap that risks distracting one from doing anything of consequence
Monitoring The Situation precludes other activities
I think it may be time to stop

Me sitting in on an important coordination meeting for the team I moved to last week and have little context for:

High Purcell enhancement in all-TMDC nanobeam resonator designs with optically active monolayers for nanolasers
Felix Binkowski, Aris Koulas-Simos, Fridtjof Betz, Matthias Plock, Ivan Sekulic, Phillip Manley, Martin Hammerschmidt, Philipp-Immanuel Schneider, Lin Zschiedrich, Battulga Munkhbat, Stephan Reitzenstein, Sven Burger
https://arxi…

High Purcell enhancement in all-TMDC nanobeam resonator designs with optically active monolayers for nanolasers
We propose a nanobeam resonator incorporating an optically active monolayer, designed to achieve a high Purcell enhancement. The resonator is fully composed of transition metal dichalcogenide (TMDC) materials and intended to operate as a high-beta-factor nanolaser. A theoretical framework that models and optimizes the Purcell enhancement associated with the emission from atomically thin layers is developed. This framework is based on a resonance expansion, enabling spectral resolution of physic…

Observation of hierarchy of Hilbert space ergodicities in the quantum dynamics of a single spin
Wenquan Liu, Zouwei Pan, Yue Fu, Wei Cheng, Wen Wei Ho, Xing Rong, Jiangfeng Du
https://arxiv.org/abs/2507.05706

Observation of hierarchy of Hilbert space ergodicities in the quantum dynamics of a single spin
Ergodicity, the property that all allowed configurations are explored over time, plays a pivotal role in explaining the equilibrium behavior of classical dynamical systems. Yet, such a property is typically precluded in quantum systems owing to the presence of energy eigenstates, which are stationary states in dynamics. However, recent theoretical works have argued that ergodic explorations of the Hilbert space, occurring at varying levels as measured by statistical pseudorandomness of the time…

A self- proclaimed leader of an online group linked to the violent extremist network "The Com"
tells WIRED he is responsible for the
flurry of 💥hoax active-shooter alerts at universities across the US in recent days
as students return to school.
https://www.wired.com/story/…

This Is the Group That's Been Swatting US Universities
WIRED spoke to a self-proclaimed leader of an online group called Purgatory, which charged as little as $20 to call in fake threats against schools.

Critical and quasicritical behavior in a three-species dynamical model of semi-directed percolation
C K Jasna, V Sasidevan
https://arxiv.org/abs/2508.21560 https://

Critical and quasicritical behavior in a three-species dynamical model of semi-directed percolation
We investigate a three-species dynamical model whose dynamics naturally generate the semi-directed percolation cluster and show a non-equilibrium absorbing state phase transition from an active to inactive state. The critical threshold and exponents associated with the dynamic process are determined using Monte Carlo simulations. Critical behavior observed shows that the model belongs to the directed percolation (DP) universality class. Further, we consider the effect of spontaneous activity ge…

Activated random walk on the comb
Matthew Junge, Josh Meisel, Aldo Morelli
https://arxiv.org/abs/2508.14977 https://arxiv.org/pdf/2508.14977

Activated random walk on the comb
The density conjecture for activated random walk on the interval was recently resolved using a new tool called layer percolation. As a step towards understanding how layer percolation extends to activated random walk on more complex graphs, we develop its analog for the comb graph and use it to prove bounds on the critical density. Additionally, we provide simulation evidence suggesting that the comb has different critical densities on its spine and teeth, both of which are smaller than the cri…

SmartFlow: A CFD-solver-agnostic deep reinforcement learning framework for computational fluid dynamics on HPC platforms
Maochao Xiao, Yuning Wang, Felix Rodach, Bernat Font, Marius Kurz, Pol Su\'arez, Di Zhou, Francisco Alc\'antara-\'Avila, Ting Zhu, Junle Liu, Ricard Montal\`a, Jiawei Chen, Jean Rabault, Oriol Lehmkuhl, Andrea Beck, Johan Larsson, Ricardo Vinuesa, Sergio Pirozzoli

SmartFlow: A CFD-solver-agnostic deep reinforcement learning framework for computational fluid dynamics on HPC platforms
Deep reinforcement learning (DRL) is emerging as a powerful tool for fluid-dynamics research, encompassing active flow control, autonomous navigation, turbulence modeling and discovery of novel numerical schemes. We introduce SmartFlow, a CFD-solver-agnostic framework for both single- and multi-agent DRL algorithms that can easily integrate with MPI-parallel CPU and GPU-accelerated solvers. Built on Relexi and SmartSOD2D, SmartFlow uses the SmartSim infrastructure library and our newly develope…

On Friday, Right Wing Watch reported that President Donald Trump's religious-right activists have been nearly unanimous in their demand that the Trump administration lend its full support to Israel in its growing conflict with Iran because they believe that it is key to bringing about the End Times and the return of Jesus Christ.
On Saturday, after Trump ordered U.S. airstrikes on Iranian nuclear facilities, MAGA cultist and self-proclaimed Christian nationalist Lance Wallnau immed…

Lance Wallnau Says Trump's Strike On Iran Is Setting The Stage For 'The Antichrist Emerging'
Christian nationalist Lance Wallnau is excited about Trump's military strikes on Iran because it is setting the stage for "the Antichrist emerging."