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We present in this paper the results of a comprehensive GEANT simulation of the Gamma-Ray Imaging Detector (GRID) being developed for the AGILE space astrophysics mission. The GRID is designed to be sensitive in the 30 MeV - 50 GeV energy…

Astrophysics · Physics 2015-06-24 Francesco Longo , Veronica Cocco , Marco Tavani

We investigate and analyze site specific systematics for the MAGIS-100 atomic interferometry experiment at Fermi National Accelerator Laboratory. As atom interferometers move out of the laboratory environment passive and active mitigation…

Atomic Physics · Physics 2022-02-11 Jeremiah Mitchell , Timothy Kovachy , Steve Hahn , Phil Adamson , Swapan Chattopadhyay

We present the first direct measurement of the gravity-field curvature based on three conjugated atom interferometers. Three atomic clouds launched in the vertical direction are simultaneously interrogated by the same atom interferometry…

Atomic Physics · Physics 2015-01-08 G. Rosi , L. Cacciapuoti , F. Sorrentino , M. Menchetti , M. Prevedelli , G. M. Tino

In this paper, we investigate the problem of weakly supervised 3D vehicle detection. Conventional methods for 3D object detection need vast amounts of manually labelled 3D data as supervision signals. However, annotating large datasets…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Yi Wei , Shang Su , Jiwen Lu , Jie Zhou

Flight height is a fundamental parameter for correcting the gamma signal produced by terrestrial radionuclides measured during airborne surveys. The frontiers of radiometric measurements with UAV require light and accurate altimeters flying…

We propose a laboratory-scale experiment to locally measure the general relativistic frame-dragging effect on Earth using the macroscopic quantum properties of a novel superfluid $^4$He single Josephson junction gyrometer. We derive the…

Quantum Physics · Physics 2025-10-24 Kai-Isaak Ellers , Marios Christodoulou , K. C. Schwab , K. Birgitta Whaley

Recent advances in atom interferometry have led to the development of quantum inertial sensors with outstanding performance in terms of sensitivity, accuracy, and long-term stability. For ground-based implementations, these sensors are…

Materials and devices used in space and advanced energy systems are continuously exposed to high-energy photons and particles, leading to gradual changes in their structural and electronic properties. Gamma-ray exposure is particularly…

LIGO interferometer is considered the most sensitive and complicated gravitational experimental equipment ever built. Its main objective is to detect the gravitational wave from the strongest events in the universe by observing if the…

General Relativity and Quantum Cosmology · Physics 2022-05-10 Reymond Mesuga , Brian James Bayanay

Since its early phases of operation, the AGILE satellite is observing Gamma Ray Bursts (GRBs) over an energy range potentially spanning six orders of magnitude. In the hard X-ray band the SuperAGILE imager provides localization of about one…

EMG-based gesture recognition shows promise for human-machine interaction. Systems are often afflicted by signal and electrode variability which degrades performance over time. We present an end-to-end system combating this variability…

Enabling robots to grasp objects specified through natural language is essential for effective human-robot interaction, yet it remains a significant challenge. Existing approaches often struggle with open-form language expressions and…

Robotics · Computer Science 2025-09-11 Houjian Yu , Zheming Zhou , Min Sun , Omid Ghasemalizadeh , Yuyin Sun , Cheng-Hao Kuo , Arnie Sen , Changhyun Choi

Wasserstein distance (WD) and the associated optimal transport plan have been proven useful in many applications where probability measures are at stake. In this paper, we propose a new proxy of the squared WD, coined min-SWGG, that is…

Machine Learning · Statistics 2023-10-31 Guillaume Mahey , Laetitia Chapel , Gilles Gasso , Clément Bonet , Nicolas Courty

In order to investigate the speed of gravitational signals travelling in air or through a different medium two experiments were designed. One of the experiments contains 2 masses rotating at very high speed and in the other experiment a…

Instrumentation and Detectors · Physics 2022-05-02 Carlos Frajuca , Fabio da Silva Bortoli , Nadja Simão Magalhaes

We propose a tunable resonant sensor to detect gravitational waves in the frequency range of 50-300 kHz using optically trapped and cooled dielectric microspheres or micro-discs. The technique we describe can exceed the sensitivity of…

General Relativity and Quantum Cosmology · Physics 2015-06-05 Asimina Arvanitaki , Andrew A. Geraci

This paper introduces GRAD, a real-time anomaly detection method for autonomous vehicle sensors that integrates statistical analysis and deep learning to ensure the reliability of sensor data. The proposed approach combines the Reinforced…

Machine Learning · Computer Science 2025-10-28 Mohammad Hossein Jafari Naeimi , Ali Norouzi , Athena Abdi

A simple method has been proposed to determine acoustic-gravity wave (AGW) properties at mesosphere heights from measurements of VLF radio signals. For relatively short paths (less than $\sim$ 2000 km long), simple relations are obtained…

Atmospheric and Oceanic Physics · Physics 2020-11-11 A. K. Fedorenko , E. I. Kryuchkov , O. K. Cheremnykh , A. D. Voitsekhovska , Yu. O. Klymenko

A single-seed, module-based compact laser system is demonstrated on a transportable $^{87}\text{Rb}$-based high-precision atomic gravimeter. All the required laser frequencies for the atom interferometry are provided by free-space…

Atomic Physics · Physics 2022-10-24 Fong En Oon , Rainer Dumke

The optical structure of several AGN has been studied using the Fine Guidance Sensors (FGS) on the Hubble Space Telescope (HST). The FGSs are interferometric devices which can resolve structure on scales of 20 milliarcsecs or less and hence…

Astrophysics · Physics 2007-05-23 Richard N. Hook , Ethan J. Schreier , George Miley
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