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Gravitational-wave sources can serve as standard sirens to probe cosmology by measuring their luminosity distance and redshift. Such standard sirens are also useful to probe theories beyond general relativity with a modified…

General Relativity and Quantum Cosmology · Physics 2021-06-30 Nan Jiang , Kent Yagi

The Gamma-Ray Integrated Detectors (GRID) are a space project to monitor the transient gamma-ray sky in the multi-messenger astronomy era using multiple detectors on-board CubeSats. The second GRID detector, GRID-02, was launched in 2020.…

Instrumentation and Methods for Astrophysics · Physics 2021-12-21 Huaizhong Gao , Dongxin Yang , Jiaxing Wen , Xutao Zheng , Ming Zeng , Jirong Cang , Weihe Zeng , Xiaofan Pan , Qimin Zhou , Yihui Liu , Hua Feng , Binbin Zhang , Zhi Zeng , Yang Tian , GRID Collaboration

We demonstrate a portable all-optical intrinsic scalar magnetic gradiometer composed of miniaturized cesium vapor cells and vertical-cavity surface-emitting lasers (VCSELs). Two cells, with an inner dimension of 5 mm x 5 mm x 5 mm and…

Atomic Physics · Physics 2020-04-10 Rui Zhang , Rahul Mhaskar , Ken Smith , Mark Prouty

The Zhaoshan long-baseline Atom Interferometer Gravitation Antenna (ZAIGA) is a new type of underground laser-linked interferometer facility, and is currently under construction. It is in the 200-meter-on-average underground of a mountain…

Quantum magnetometry represents a fundamental component of quantum metrology, where trapped-ion systems have achieved $\rm{pT}/\sqrt{\rm{Hz}}$ sensitivity in single-ion radio-frequency magnetic field measurements via dressed states based…

Quantum Physics · Physics 2025-10-28 Yuxiang Huang , Wei Wu , Qingyuan Mei , Yiheng Lin

We propose a novel laboratory test of gravity combining seismic-wave measurements with cosmic-ray muon detections. Quantum-gravity corrections to the anharmonic Debye model are derived, yielding a modified bulk modulus that encodes…

General Relativity and Quantum Cosmology · Physics 2026-04-09 Aneta Wojnar

The gravimeter based on atom interferometry has potentially wide applications on building the gravity networks, geophysics as well as gravity assisted navigation. Here, we demonstrate experimentally a portable atom gravimeter operating in…

Atomic Physics · Physics 2022-03-22 Bin Chen , Jinbao Long , Hongtai Xie , Chenyang Li , Luokan Chen , Bonan Jiang , Shuai Chen

TITAN (TRIUMF's Ion Traps for Atomic and Nuclear science) is an online facility designed to carry out high-precision mass measurements on singly and highly charged radioactive ions. The TITAN Penning trap has been built and optimized in…

Instrumentation and Detectors · Physics 2015-05-30 M. Brodeur , V. L. Ryjkov , T. Brunner , S. Ettenauer , A. T. Gallant , V. V. Simon , M. J. Smith , A. Lapierre , R. Ringle , P. Delheij , M. Good , D. Lunney , J. Dilling

This document briefly reviews recent short-range gravity experiments that were performed at below laboratory scales to test the Newtonian inverse square law of gravity. To compare sensitivities of these measurements, estimates using the…

High Energy Physics - Experiment · Physics 2015-05-21 Jiro Murata , Saki Tanaka

World models simulate environment dynamics from raw sensory inputs like video. However, using them for planning can be challenging due to the vast and unstructured search space. We propose a robust and highly parallelizable planner that…

Machine Learning · Computer Science 2026-02-03 Michael Psenka , Michael Rabbat , Aditi Krishnapriyan , Yann LeCun , Amir Bar

New generation high-energy physics experiments demand high precision tracking and accurate measurements of a large number of particles produced in the collisions of lementary particles and heavy-ions. Silicon-tungsten (Si-W) calorimeters…

Parameter-efficient fine-tuning (PEFT) provides a scalable alternative to full-model adaptation by updating only a small subset of parameters in large pre-trained models. We introduce GRASP - GRouped Activation Shared Parameterization - a…

Machine Learning · Computer Science 2026-01-01 Malyaban Bal , Abhronil Sengupta

Understanding how granular materials behave in low gravity is crucial for planetary science and space exploration. It can also help us understand granular phenomena usually hidden by gravity. On Earth, gravity dominates granular behavior,…

Soft Condensed Matter · Physics 2025-11-27 Olfa D'Angelo , Qing Yu , Thorsten Pöschel

Low-Gain Avalanche Detectors (LGADs) are a type of thin silicon detector with a highly doped gain layer that provides moderate internal signal amplification. One recent challenge in the use of LGADs, studied by several research groups, is…

Instrumentation and Detectors · Physics 2024-05-07 S. Braun , Q. Buat , J. Ding , P. Kammel , S. M. Mazza , F. McKinney-Martinez , A. Molnar , C. Lansdell , J. Ott , A. Seiden , B. Schumm , Y. Zhao

We use galaxy-galaxy weak lensing data to perform a novel test on general relativity (GR) and $f(T)$ torsional gravity. In particular, we impose strong constraints using the torsional (teleparallel) formulation of gravity in which the…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-25 Zhaoting Chen , Wentao Luo , Yi-Fu Cai , Emmanuel N. Saridakis

It has long been thought that observing distinctive traces of quantum gravity in a laboratory setting is effectively impossible, since gravity is so much weaker than all the other familiar forces in particle physics. But the quantum gravity…

Quantum Physics · Physics 2022-05-19 Nick Huggett , Niels Linnemann , Mike Schneider

The study of nuclei farther from the valley of $\beta$-stability goes hand-in-hand with shorter-lived nuclei produced in smaller abundances than their more stable counterparts. The measurement, to high precision, of nuclear masses therefore…

Einstein's general relativity, as the most successful theory of gravity, is one of the cornerstones of modern physics. However, the experimental tests for gravity in the high energy region are limited. The emerging gravitational-wave…

General Relativity and Quantum Cosmology · Physics 2021-02-19 Yi-Fan Wang , Rui Niu , Tao Zhu , Wen Zhao

We introduce The Novel Probes Project, an initiative to advance the field of astrophysical tests of the dark sector by creating a forum that connects observers and theorists. This review focuses on tests of gravity and is intended to be of…

In this paper, we calculate the gravitational acceleration by using simple pendulums within the designated World Pendulum Alliance: a network constituted by fourteen institutions in eight countries, each provided by a pendulum that can be…