Terrestrial very-long-baseline atom interferometry: Workshop summary
Sven Abend, Baptiste Allard, Iván Alonso, John Antoniadis, H. M. Araújo, G. Arduini, Aidan S. Arnold, Tobias Asano, Nadja Augst, Leonardo Badurina, Antun Balaž, Hannah Banks, M. Barone, Michele Barsanti, Angelo Bassi, Baptiste Battelier, Charles F. A. Baynham, Quentin Beaufils, A. Belić, Ankit Beniwal, J. Bernabéu, F. Bertinelli, Andréa Bertoldi, Ikbal Ahamed Biswas, Diego Blas, Patrick Boegel, Aleksandar Bogojević, Jonas Böhm, Samuel Böhringer, Kai Bongs, Philippe Bouyer, Christian Brand, Apostolos Brimis, O. L. Buchmueller, L. Cacciapuoti, S. Calatroni, B. Canuel, Chiara Caprini, A. Caramete, L. Caramete, Matteo Carlesso, J.S. Carlton, Mateo Casariego, V. Charmandaris, Yu-Ao Chen, Maria Luisa Chiofalo, Alessia Cimbri, J. P. Coleman, Florin Lucian Constantin, Carlo Contaldi, Yanou Cui, Elisa Da Ros, G. Davies, E. del Pino Rosendo, Christian Deppner, Andrei Derevianko, Claudia de Rham, A. De Roeck, Daniel Derr, Fabio Di Pumpo, Goran S. Djordjević, Babette Döbrich, P. Domokos, P.J. Dornan, M. Doser, Giannis Drougakis, Jacob Dunningham, Alisher Duspayev, S. Easo, Joshua Eby, Maxim A. Efremov, T. Ekelöf, Gedminas Elertas, John Ellis, David Evans, Pavel Fadeev, Mattia Fanì, F. Fassi, M. Fattori, P. Fayet, Daniel Felea, J. H. Feng, Alexander Friedrich, Elina Fuchs, Naceur Gaaloul, D. Gao, Susan Gardner, B. M. Garraway, A. Gauguet, Sandra Gerlach, Matthias Gersemann, V. Gibson, Enno Giese, Gian F. Giudice, Eric P. Glasbrenner, Mustafa Gündoğan, Martin G. Haehnelt, T. Hakulinen, Klemens Hammerer, Ekim Taylan Hanımeli
Abstract
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves. The primary objective of the workshop was to lay the groundwork for an international TVLBAI proto-collaboration. This collaboration aims to unite researchers from different institutions to strategize and secure funding for terrestrial large-scale AI projects. The ultimate goal is to create a roadmap detailing the design and technology choices for one or more kilometer--scale detectors, which will be operational in the mid-2030s. The key sections of this report present the physics case and technical challenges, together with a comprehensive overview of the discussions at the workshop together with the main conclusions.