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The Alpha Magnetic Spectrometer (AMS) is a particle physics detector designed to operate on the International Space Station (ISS). The aim of AMS is the direct detection of charged particles in the rigidity range from 0.5 GV to few TV to…

Astrophysics · Physics 2007-05-23 Carmen Palomares

Space-based gravitational-wave detectors, such as LISA, record interferometric measurements on widely separated satellites. Their clocks are not synced actively. Instead, clock synchronization is performed in on-ground data processing. It…

General Relativity and Quantum Cosmology · Physics 2025-04-16 Jan Niklas Reinhardt , Olaf Hartwig , Gerhard Heinzel

Space-borne gravitational wave detection will open the observation window in the 0.1 mHz$-$1 Hz bandwidth, playing a crucial role in the development of cosmology and physics. Precise clock synchronization among satellites is essential for…

General Relativity and Quantum Cosmology · Physics 2025-07-04 Ming-Yang Xua , Yu-Jie Tan , Ning Ma , Ao-Ting Fang , Yi-Jun Xia , Cheng-Gang Shao

The MICROSCOPE space mission aims at testing the Equivalence Principle (EP) with an accuracy of $10^{-15}$. The test is based on the precise measurement delivered by a differential electrostatic accelerometer on-board a drag-free…

Instrumentation and Methods for Astrophysics · Physics 2017-07-26 Emilie Hardy , Agnès Levy , Gilles Métris , Manuel Rodrigues , Pierre Touboul

MICROSCOPE's space test of the weak equivalence principle (WEP) is based on the minute measurement of the difference of accelerations experienced by two test masses as they orbit the Earth. A detection of a violation of the WEP would appear…

General Relativity and Quantum Cosmology · Physics 2020-12-23 Joel Bergé , Quentin Baghi , Alain Robert , Manuel Rodrigues , Bernard Foulon , Emilie Hardy , Gilles Métris , Sandrine Pires , Pierre Touboul

We discuss perspectives for new tests of general relativity which are based on recent technological developments as well as new ideas. We focus our attention on tests performed with atomic clocks and do not repeat arguments present in the…

Quantum Physics · Physics 2014-11-18 S. Reynaud , C. Salomon , P. Wolf

We propose a Doppler tracking system for gravitational wave detection via Double Optical Clocks in Space (DOCS). In this configuration two spacecrafts (each containing an optical clock) are launched to space for Doppler shift observations.…

General Relativity and Quantum Cosmology · Physics 2018-04-18 Jianfeng Su , Qiang Wang , Qinghua Wang , Philippe Jetzer

Alerts of potentially hazardous coronal mass ejections (CME) are based on the detection of rapid changes in remote observations of the solar atmosphere. This paper presents a method that detects and estimates the central coordinates of CME…

Solar and Stellar Astrophysics · Physics 2022-12-07 Thomas Williams , Huw Morgan

The ALMA Central Molecular Zone Exploration Survey, ACES, has mapped $\gtrsim1000$ square arcminutes at 3 mm toward the center of our Galaxy. ACES provides the first large-scale, high-resolution ($\sim2.5$") view of the central $\sim200$…

The ALICE detector at the LHC (A Large Ion Collider Experiment) will carry out comprehensive measurements of high energy nucleus-nucleus collisions, in order to study QCD matter under extreme conditions and the phase transtion between…

Instrumentation and Detectors · Physics 2019-08-14 Rene Bellwied

Tests of the Weak Equivalence Principle can reveal a new, composition dependent, force of nature or disprove many models of new physics. For the first time such a test is successfully carried out in space by the MICROSCOPE satellite. Early…

General Relativity and Quantum Cosmology · Physics 2018-08-29 Anna M. Nobili , Alberto Anselmi

Clock synchronization between the ground and satellites is a fundamental issue in future quantum telecommunication, navigation, and global positioning systems. Here, we propose a scheme of near-Earth orbit satellite-based quantum clock…

Quantum Physics · Physics 2016-03-08 Jieci Wang , Zehua Tian , Jiliang Jing , Heng Fan

Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based timescale that has a precision comparable to the uncertainties in international atomic timescales. Our ensemble of pulsars…

The AMS is a state of the art detector for extraterrestrial study of antimatter, matter and missing matter. After a precursor flight on STS91 in May 1998, AMS will be installed on the International Space Station where it will operate for…

High Energy Physics - Experiment · Physics 2009-10-30 R. Battiston

ALICE (A Large Ion Collider Experiment) is the CERN LHC experiment optimized for the study of the strongly interacting matter produced in heavy-ion collisions and devoted to the characterization of the Quark-Gluon Plasma. To achieve the…

Instrumentation and Detectors · Physics 2019-12-30 Domenico Colella

ALICE (A Large Ion Collider Experiment) at the LHC is designed for studies of nuclear matter at extreme temperatures and energy densities, so called Quark-Gluon Plasma (QGP). Two detectors for measurements of electromagnetic signals,…

High Energy Physics - Experiment · Physics 2020-04-22 D. Blau

In the next decade or two, extremely accurate tests of general relativity under extreme conditions are expected from gravitational wave observations of binary black hole mergers with a wide range of mass ratios. In addition, major…

General Relativity and Quantum Cosmology · Physics 2011-06-14 Neil Ashby , Peter L. Bender

A Large Ion Collider Experiment (ALICE) is built to study the properties of the strongly interacting matter created in heavy-ion collisions at the LHC. With the upgrade of its Inner Tracking System (ITS), the ALICE experiment is going to…

Instrumentation and Detectors · Physics 2016-11-23 Iouri Belikov

Wide classes of new fundamental physics theories cause apparent variations in particle mass ratios in space and time. In theories that violate the weak equivalence principle (EP), those variations are not uniform across all particles and…