The Zhaoshan long-baseline Atom Interferometer Gravitation Antenna (ZAIGA) is an underground laser-linked interferometer facility under construction near Wuhan, China. It has an equilateral triangle configuration with two 1-km-apart atom interferometers in each arm, a 300-meter vertical tunnel equipped with an atom fountain and atomic clocks, and 1-km-arm-length optical clocks linked by...
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) Experiment aims at demonstrating precision measurements of gravity with cold atom sensors in a large-scale instrument and at studying associated applications in geosciences and fundamental physics. In particular, it will assess future potential applications of atom interferometry to gravitational wave detection in the...
The MAGIA-Advanced Experiment is a project funded by the Italian Ministry for Research and Istituto Nazionale Fisica Nucleare for a large scale atom interferometer based on ultracold Rb and Sr atoms. In additions to lab R&D activity, the team is investigating the possibility of a 100-300 m atom interferometer to be installed in a vertical shaft on Sardinia island. Main goals are GW observation...
The Matter-wave Atomic Gradiometer Interferometric Sensor (MAGIS) project in the US plans a series of interferometers using cold atoms with progressively increasing baselines of 10m, 100m, and 1km. The first step is funded and under construction at Stanford, the second step is being prepared at Fermilab, and the third step is planned for the Sanford Underground Research Facility....
The UK Atom Interferometry Observatory and Network (AION) project in the UK proposes a series of atom interferometers with baselines of 10m, 100m, and 1km, similar to MAGIS. The first stage would be located in Oxford, with sites for the subsequent steps awaiting study. http://www.hep.ph.ic.ac.uk/AION-Project/
ELGAR is a European initiative to build a terrestrial infrastructure for cold atoms for gravitational wave detection with potential applications also for dark matter. Configurations similar to MAGIS/AION are included in the proposal, and a White Paper about this infrastructure is being prepared [https://indico.obspm.fr/event/58/contributions/214/attachments/88/98/Slides-bouyer2018_06_21_MIGA_GDR.pdf]
The Space Atomic Gravity Explorer (SAGE) mission was proposed to the European Space Agency in 2016 in response to a Call for “New Ideas” (https://www.cosmos.esa.int/web/new-scientific-ideas). It has the scientific objective to investigate Gravitational Waves, Dark Matter, and other fundamental aspects of gravity as well as the connection between gravitational physics and quantum physics...
