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Comptes Rendus Physique
Volume 15, n° 10
pages 866-874 (décembre 2014)
Doi : 10.1016/j.crhy.2014.10.005
A ring lasers array for fundamental physics
Un réseau de lasers en anneaux pour la physique fondamentale
 

Angela Di Virgilio a, , Maria Allegrini b, Alessandro Beghi c, Jacopo Belfi a, Nicolò Beverini b, Filippo Bosi a, Bachir Bouhadef a, Massimo Calamai b, Giorgio Carelli b, Davide Cuccato c, d, Enrico Maccioni b, Antonello Ortolan d, Giuseppe Passeggio e, Alberto Porzio e, f, Matteo Luca Ruggiero g, Rosa Santagata h, Angelo Tartaglia g
a INFN Sezione di Pisa, Pisa, Italy 
b Department of Physics, University of Pisa, Pisa, Italy 
c DEI, University of Padua, Padua, Italy 
d INFN Legnaro National Laboratory, Legnaro (Padua), Italy 
e INFN Sezione di Napoli, Naples, Italy 
f CNR-SPIN, Naples, Italy 
g Polytechnic of Turin, Turin, Italy 
h Department of Physics, University of Siena, Siena, Italy 

Corresponding author.
Abstract

After reviewing the importance of light as a probe for testing the structure of space-time, we describe the GINGER project. GINGER will be a three-dimensional array of large-size ring-lasers able to measure the de Sitter and Lense–Thirring effects. The instrument will be located at the underground laboratory of Gran Sasso, in Italy. We describe the preliminary actions and measurements already under way and present the full road map to GINGER. The intermediate apparatuses GP2 and GINGERino are described. GINGER is expected to be fully operating in few years.

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Résumé

Après avoir passé en revue l'importance de la lumière comme sonde pour évaluer la structure de l'espace-temps, nous décrivons le projet GINGER. GINGER sera un réseau tridimensionnel de lasers en anneaux de grandes tailles capable de mesurer les effets de Sitter et Lense–Thirring. Cet instrument sera localisé dans le laboratoire souterrain du Gran Sasso, en Italie. Nous décrivons les actions préliminaires et les mesures déjà en cours, puis nous présentons la feuille de route complète de GINGER. Les équipements intermédiaires GP2 et GINGERino sont décrits. GINGER devrait être complètement opérationnel d'ici quelques années.

The full text of this article is available in PDF format.

Keywords : Sagnac effect, Ring-laser, Inertial sensor, Gravito-magnetism, Lense–Thirring effect, Length of the day

Mots-clés : Effet Sagnac, Laser à anneaux, Capteur inertiel, Magnétisme gravitationnel, Effet Lense–Thirring, Longueur du jour




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