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Inertial sensors based on cold atom interferometry exhibit many interesting features for applications related to inertial navigation, particularly in terms of sensitivity and long-term stability. However, at present the typical atom…

The discovery of gravitational waves (GWs) from merging compact binaries has transformed modern astrophysics, driving innovation in detection methodologies. Whereas matched-filtering techniques have long been the standard, the growing…

General Relativity and Quantum Cosmology · Physics 2025-09-08 Alexandra E. Koloniari , Lazaros Lazaridis , Christos Paschalidis , Nikolaos Stergioulas

We present a single-source dual atom interferometer and utilize it as a gradiometer for precise gravitational measurements. The macroscopic separation between interfering atomic wave packets (as large as 16 cm) reveals the interplay of…

The scope of the paper is to propose different concepts for future space gravity missions using Cold Atom Interferometers (CAI) for measuring the diagonal elements of the gravity gradient tensor, the spacecraft angular velocity and the…

The Advanced Gamma-ray Imaging System (AGIS) is a next-generation ground-based gamma-ray observatory being planned in the U.S. The anticipated sensitivity of AGIS is about one order of magnitude better than the sensitivity of current…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 G. Maier

Mechanical resonators based on low-dimensional materials are promising for force and mass sensing experiments. The force sensitivity in these ultra-light resonators is often limited by the imprecision in the measurement of the vibrations,…

Mesoscale and Nanoscale Physics · Physics 2016-09-22 Peter Weber , Johannes Güttinger , Adrien Noury , Jorge Vergara-Cruz , Adrian Bachtold

We present the characterisation of the most recent parametric transducers designed to enhance the Mario Schenberg Gravitational Wave Detector sensitivity. The transducer is composed of a microwave re-entrant cavity that attaches to the…

Instrumentation and Methods for Astrophysics · Physics 2017-08-16 N. C. Carvalho , O. D. Aguiar , J. Bourhill , M. E. Tobar

The electronic quality of two-dimensional systems is crucial when exploring quantum transport phenomena. In semiconductor heterostructures, decades of optimization have yielded record-quality two-dimensional gases with transport and quantum…

This work presents an experimental design for studying low-velocity collisions into granular surfaces in low-gravity. In the experiment apparatus, reduced-gravity is simulated by releasing a free-falling projectile into a surface container…

Antennas are taking design shapes by the orientation of its material and the final structural design they take. Irrespective of the shape, the function and efficiency they produce does not change and vary to much extent. We are trying to…

Systems and Control · Electrical Eng. & Systems 2023-05-09 Sunit Shantanu Digamber Fulari

Current multi-view indoor 3D object detectors rely on sensor geometry that is costly to obtain (i.e., precisely calibrated multi-view camera poses) to fuse multi-view information into a global scene representation, limiting deployment in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yang Cao , Feize Wu , Dave Zhenyu Chen , Yingji Zhong , Lanqing Hong , Dan Xu

Low Gain Avalanche Detectors (LGADs) are thin silicon detectors with moderate internal signal amplification and time resolution as good as 17 ps for minimum ionizing particles. However, the current major limiting factor in granularity is…

Instrumentation and Detectors · Physics 2023-05-26 M. Nizam , K. W. Shin , S. M. Mazza , J. Ott , A. Seiden , B. Schumm , Y. Zhao

This paper presents a novel approach to vehicle positioning that operates without reliance on the global navigation satellite system (GNSS). Traditional GNSS approaches are vulnerable to interference in certain environments, rendering them…

Robotics · Computer Science 2024-10-28 Barak Or , Nimrod Segol , Areej Eweida , Maxim Freydin

We study a fundamental problem in computational chemistry known as molecular conformation generation, trying to predict stable 3D structures from 2D molecular graphs. Existing machine learning approaches usually first predict distances…

Machine Learning · Computer Science 2021-06-09 Chence Shi , Shitong Luo , Minkai Xu , Jian Tang

High-precision vehicle positioning is key to the implementation of modern driving systems in urban environments. Global Navigation Satellite System (GNSS) carrier phase measurements can provide millimeter- to centimeter-level positioning,…

Robotics · Computer Science 2022-07-22 Junjie Zhang , Amir Khodabandeh , Kourosh Khoshelham

An atom interferometer using a Bose-Einstein condensate of $^{87}$Rb atoms is utilized for the measurement of magnetic field gradients. Composite optical pulses are used to construct a spatially symmetric Mach-Zehnder geometry. Using a…

GRAVITY is the four-beam, near- infrared, AO-assisted, fringe tracking, astrometric and imaging instrument for the Very Large Telescope Interferometer (VLTI). It is requiring the development of one of the most complex instrument software…

Among all forms of routine human activity, the one which produces the strongest gravity-gradient noise in interferometric gravitational-wave detectors (e.g. LIGO) is the beginning and end of weight transfer from one foot to the other during…

General Relativity and Quantum Cosmology · Physics 2009-12-30 Kip S. Thorne , Carolee J. Winstein

We assess the science reach and technical feasibility of a satellite mission based on precision atomic sensors configured to detect gravitational radiation. Conceptual advances in the past three years indicate that a two-satellite…

Instrumentation and Methods for Astrophysics · Physics 2017-11-08 Peter W. Graham , Jason M. Hogan , Mark A. Kasevich , Surjeet Rajendran , Roger W. Romani

Ultrasound detection is one of the most important nondestructive subsurface characterization tools of materials, whose goal is to laterally resolve the subsurface structure with nanometer or even atomic resolution. In recent years, graphene…

Applied Physics · Physics 2018-07-23 G. J. Verbiest , J. N. Kirchhof , J. Sonntag , M. Goldsche , T. Khodkov , C. Stampfer