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Technologies for the ELGAR large scale atom interferometer array

B. Canuel 1 S. Abend P. Amaro-Seoane F. Badaracco Q. Beaufils 2 A. Bertoldi 1 K. Bongs 3 Philippe Bouyer 1 C. Braxmaier 4 W. Chaibi 5 N. Christensen 5 F. Fitzek G. Flouris N. Gaaloul 6 S. Gaffet C. L. Garrido Alzar R. Geiger 7 S. Guellati-Khelifa 8 K. Hammerer J. Harms 9 J. Hinderer 10 J. Junca S. Katsanevas C. Klempt C. Kozanitis M. Krutzik A. Landragin 7 I. Lazaro Roche 11 B. Leykauf Y. -H. Lien S. Loriani S. Merlet 12 M. Merzougui 5 M. Nofrarias P. Papadakos Franck Pereira dos Santos 7 A. Peters 13 D. Plexousakis 14 M. Prevedelli 15 E. Rasel 16 Y. Rogister 10 S. Rosat 10 A. Roura D. O. Sabulsky V. Schkolnik D. Schlippert C. Schubert 17 L. Sidorenkov J. -N. Siemß C. F. Sopuerta F. Sorrentino 18 C. Struckmann G. M. Tino 18 G. Tsagkatakis A. Vicere 19 W. von Klitzing L. Woerner X. Zou
Abstract : We proposed the European Laboratory for Gravitation and Atom-interferometric Research (ELGAR), an array of atom gradiometers aimed at studying space-time and gravitation with the primary goal of observing gravitational waves (GWs) in the infrasound band with a peak strain sensitivity of 3.3×10−22/Hz‾‾‾√ at 1.7 Hz. In this paper we detail the main technological bricks of this large scale detector and emphasis the research pathways to be conducted for its realization. We discuss the site options, atom optics, and source requirements needed to reach the target sensitivity. We then discuss required seismic isolation techniques, Gravity Gradient Noise reduction strategies, and the metrology of various noise couplings to the detector.
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https://hal-iogs.archives-ouvertes.fr/hal-02989745
Contributor : Philippe Bouyer <>
Submitted on : Thursday, November 5, 2020 - 11:53:43 AM
Last modification on : Monday, November 30, 2020 - 11:18:05 AM

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  • HAL Id : hal-02989745, version 1
  • ARXIV : 2007.04014

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B. Canuel, S. Abend, P. Amaro-Seoane, F. Badaracco, Q. Beaufils, et al.. Technologies for the ELGAR large scale atom interferometer array. 2020. ⟨hal-02989745⟩

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