Tootfinder

EAROL: Environmental Augmented Perception-Aware Planning and Robust Odometry via Downward-Mounted Tilted LiDAR
Xinkai Liang, Yigu Ge, Yangxi Shi, Haoyu Yang, Xu Cao, Hao Fang
https://arxiv.org/abs/2508.14554

EAROL: Environmental Augmented Perception-Aware Planning and Robust Odometry via Downward-Mounted Tilted LiDAR
To address the challenges of localization drift and perception-planning coupling in unmanned aerial vehicles (UAVs) operating in open-top scenarios (e.g., collapsed buildings, roofless mazes), this paper proposes EAROL, a novel framework with a downward-mounted tilted LiDAR configuration (20° inclination), integrating a LiDAR-Inertial Odometry (LIO) system and a hierarchical trajectory-yaw optimization algorithm. The hardware innovation enables constraint enhancement via dense ground point clo…

These little cuties eat any small, unprotected plant in my yard down to the ground. I've tried explaining that if they don't eat ALL of my garden seedlings, there's more for everyone later. But so far it hasn't worked.

Nach dem Spiel der #Razorbacks gegen die #Monarchs werden sich die #Unicorns auf das Match nächste Woche um so akribischer vorbereiten. Gut so!

Tera-Hertz Counterparts to Fast Radio Bursts from Coherent Cherenkov Radiation by Tilted Bunches
Ze-Nan Liu, Wei-Yang Wang, Yu-Chen Huang, Zi-Gao Dai
https://arxiv.org/abs/2508.11736

Tera-Hertz Counterparts to Fast Radio Bursts from Coherent Cherenkov Radiation by Tilted Bunches
Fast radio bursts (FRBs) are millisecond-duration extragalactic transients characterized by ultrahigh brightness temperatures, suggesting coherent emission mechanisms in extreme astrophysical processes. In this paper, we extend the bunched coherent Cherenkov radiation (CChR) framework by incorporating bunch inclination and geometric configuration parameters, enabling it to more rigorously model FRB emission and tera-Hertz (THz) emission from magnetars. When relativistic bunches are injected int…

Tilted Material in an Optical Cavity: Light-Matter Moir\'e Effect and Coherent Frequency Conversion
Arshath Manjalingal, Saeed Rahmanian Koshkaki, Logan Blackham, Arkajit Mandal
https://arxiv.org/abs/2508.11237

Tilted Material in an Optical Cavity: Light-Matter Moiré Effect and Coherent Frequency Conversion
Exciton-polaritons formed inside optical cavities offer a highly tunable platform for exploring novel quantum phenomena. Here, we introduce and theoretically characterize a light-matter moiré effect (LMME) that arises when a 2D material is tilted inside a planar optical cavity, in contrast to stacking multiple layers at a twist angle as is done in forming 2D moiré hetero-structures. We show that this geometric tilt produces emergent periodicity in the light-matter coupling, yielding displaced…

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Low-Cost Wideband Tilted Beam Antenna for Millimeter-wave Vehicle Applications
Jiawang Li
https://arxiv.org/abs/2506.08239 https://ar…

Low-Cost Wideband Tilted Beam Antenna for Millimeter-wave Vehicle Applications
To facilitate vehicle coverage for millimeter-wave applications, this communication presents a low-cost, wideband tilted-beam antenna. A novel design is proposed in which a slot antenna is both directly excited and electromagnetically coupled to a monopole array. This slot-monopole configuration is inherently robust against substrate losses, enabling low-cost fabrication while maintaining high realized gain and compact size. Furthermore, the slot-fed structure effectively excites multiple reson…

Many people do not understand how cooked the German “left” is.

Gravitational Waves from Spectator Scalar Fields
Marcos A. G. Garcia, Sarunas Verner
https://arxiv.org/abs/2506.12126 https://arxiv.o…

Gravitational Waves from Spectator Scalar Fields
We propose a novel mechanism for gravitational wave (GW) production sourced by spectator scalar fields during inflation. These fields, while not driving cosmic expansion, generate blue-tilted isocurvature fluctuations that naturally satisfy current CMB constraints at large scales while producing enhanced power spectra at smaller scales accessible to GW detectors. The resulting GW spectrum spans an exceptionally broad frequency range from $10^{-20}$ to $1$ Hz, with amplitudes ranging from $Ω_{\…

Geometric spin Hall effect of spatiotemporal optical vortices
Chaokai Yang, Weifeng Ding, Zhaoying Wang
https://arxiv.org/abs/2506.15053 https://

Geometric spin Hall effect of spatiotemporal optical vortices
The geometric spin Hall effect of light (GSHEL), which is associated with nonzero transverse angular momentum, has been demonstrated to occur without the need for light-matter interaction and is characterized by a transverse shift. Recently, there has been a surge in research on spatiotemporal optical vortices (STOV) that carry pure transverse angular momentum. In this study, we examine the transverse shift of STOV in a tilted reference frame with respect to the optical axis. Through both theor…