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We generate a tabletop pulsed relativistic electron beam at 100 Hz repetition rate from vacuum laser acceleration (VLA) by tightly focusing a radially polarized beam into a low-density gas. We demonstrate that strong longitudinal electric…

During the interaction of intense femtosecond laser pulses with various targets, the natural mechanisms of laser energy transformation inherently lack temporal control and thus commonly do not provide opportunities for a controlled…

Plasma Physics · Physics 2018-05-25 Joel Magnusson , Felix Mackenroth , Mattias Marklund , Arkady Gonoskov

As an alternative to visibly pushdown automata, we introduce visibly recursive automata (VRAs), composed of a set of classical automata that can call each other. VRAs are a strict extension of so-called systems of procedural automata, a…

Formal Languages and Automata Theory · Computer Science 2026-05-12 Kévin Dubrulle , Véronique Bruyère , Guillermo A. Pérez , Gaëtan Staquet

Optimizing accelerator control is a critical challenge in experimental particle physics, requiring significant manual effort and resource expenditure. Traditional tuning methods are often time-consuming and reliant on expert input,…

Accelerator Physics · Physics 2026-01-27 Anwar Ibrahim , Denis Derkach , Alexey Petrenko , Fedor Ratnikov , Maxim Kaledin

Run Time Assurance (RTA) systems are online safety verification techniques that filter the output of a primary controller to assure safety. RTA approaches are used in safety-critical control to intervene when a performance-driven primary…

Systems and Control · Electrical Eng. & Systems 2023-03-28 Kyle Dunlap , Michael Hibbard , Mark Mote , Kerianne Hobbs

The conceptual design of a Variable-Phase Asynchronous Cyclotron (VPAC) is describe, which provides longitudinal bunch compression of accelerated proton or ion beams, and thus, permits high current acceleration at higher accelerator…

Accelerator Physics · Physics 2009-11-07 A. Tumanyan , E. Sargsyan , Z. Guiragossian

The displacement-actuated continuum robot as an abstraction has been shown as a key abstraction to significantly simplify and improve approaches due to its relation to the Clarke transform. To highlight further potentials, we revisit and…

Robotics · Computer Science 2025-03-24 Reinhard M. Grassmann , Jessica Burgner-Kahrs

Vision-Language-Action (VLA) models have recently achieved remarkable progress in robotic perception and control, yet most existing approaches primarily rely on VLM trained using 2D images, which limits their spatial understanding and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Zhifeng Rao , Wenlong Chen , Lei Xie , Xia Hua , Dongfu Yin , Zhen Tian , F. Richard Yu

In this paper, we propose GTA-VLA(Guide, Think, Act), an interactive Vision-Language-Action (VLA) framework that enables spatially steerable embodied reasoning by allowing users to guide robot policies with explicit visual cues. Existing…

Robotics · Computer Science 2026-05-14 Yiran Ling , Qing Lian , Jinghang Li , Qing Jiang , Tianming Zhang , Xiaoke Jiang , Chuanxiu Liu , Jie Liu , Lei Zhang

Jumping poses a significant challenge for quadruped robots, despite being crucial for many operational scenarios. While optimisation methods exist for controlling such motions, they are often time-consuming and demand extensive knowledge of…

Robotics · Computer Science 2026-05-19 Riccardo Bussola , Michele Focchi , Giulio Turrisi , Claudio Semini , Luigi Palopoli

Connected and automated vehicles (CAVs) provide the most intriguing opportunity to reduce pollution, energy consumption, and travel delays. In earlier work, we addressed the optimal coordination of CAVs using Hamiltonian analysis. In this…

Optimization and Control · Mathematics 2020-03-17 A M Ishtiaque Mahbub , Andreas A. Malikopoulos

In the last decades, visual target tracking has been one of the primary research interests of the Robotics research community. The recent advances in Deep Learning technologies have made the exploitation of visual tracking approaches…

Robotics · Computer Science 2020-09-29 Alessandro Devo , Alberto Dionigi , Gabriele Costante

Recent advances in FlowMatching-based Vision-Language-Action (VLA) frameworks have demonstrated remarkable advantages in generating high-frequency action chunks, particularly for highly dexterous robotic manipulation tasks. Despite these…

Robotics · Computer Science 2026-03-03 Yang Chen , Xiaoguang Ma , Bin Zhao

Unplanned extubation (UE) remains a critical patient safety concern in intensive care units (ICUs), often leading to severe complications or death. Real-time UE detection has been limited, largely due to the ethical and privacy challenges…

Artificial Intelligence · Computer Science 2025-11-18 Junhyuk Seo , Hyeyoon Moon , Kyu-Hwan Jung , Namkee Oh , Taerim Kim

The Random Phase Approximation (RPA) for correlation energy in the grid-based projector augmented wave (gpaw) code is accelerated by porting to the Graphics Processing Unit (GPU) architecture. The acceleration is achieved by grouping…

Computational Physics · Physics 2013-07-31 Jun Yan , Lin Li , Christopher O'Grady

Vision-Language-Action (VLA) models benefit from chain-of-thought (CoT) reasoning, but existing approaches incur high inference overhead and rely on discrete reasoning representations that mismatch continuous perception and control. We…

In this paper, we introduce a novel kinematics-rich vision-language-action (VLA) task, in which language commands densely encode diverse kinematic attributes (such as direction, trajectory, orientation, and relative displacement) from…

Robotics · Computer Science 2026-03-19 Gaoge Han , Zhengqing Gao , Ziwen Li , Jiaxin Huang , Shaoli Huang , Fakhri Karray , Mingming Gong , Tongliang Liu

Vision-Language-Action (VLA) models build a token-domain robot control paradigm, yet suffer from low speed. Speculative Decoding (SD) is an optimization strategy that can boost inference speed. Two key issues emerge when integrating VLA and…

Robotics · Computer Science 2026-04-28 Zihao Zheng , Zhihao Mao , Maoliang Li , Jiayu Chen , Xinhao Sun , Zhaobo Zhang , Donggang Cao , Hong Mei , Xiang Chen

Recently in robotics, Vision-Language-Action (VLA) models have emerged as a transformative approach, enabling robots to execute complex tasks by integrating visual and linguistic inputs within an end-to-end learning framework. Despite their…

The introduction of remote attestation (RA) schemes has allowed academia and industry to enhance the security of their systems. The commercial products currently available enable only the validation of static properties, such as…

Cryptography and Security · Computer Science 2019-04-04 Flavio Toffalini , Eleonora Losiouk , Andrea Biondo , Jianying Zhou , Mauro Conti
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