Next Article in Journal / Special Issue
Quantum Corrected Non-Thermal Radiation Spectrum from the Tunnelling Mechanism
Previous Article in Journal / Special Issue
Perspectives on Gravity-Induced Radiative Processes in Astrophysics
Article Menu

Export Article

Open AccessArticle
Galaxies 2015, 3(2), 84-102;

Sagnac Effect, Ring Lasers and Terrestrial Tests of Gravity

DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, Italy
INFN, Sezione di Torino, Via Pietro Giuria 1, Torino, Italy
Member of the GINGER collaboration.
Academic Editor: Lorenzo Iorio
Received: 2 March 2015 / Revised: 29 April 2015 / Accepted: 6 May 2015 / Published: 21 May 2015
(This article belongs to the Special Issue Advances in Gravitational Research)
View Full-Text   |   Download PDF [460 KB, uploaded 21 May 2015]   |  


Light can be used as a probe to explore the structure of space-time: this is usual in astrophysical and cosmological tests; however, it has been recently suggested that this can be done also in terrestrial laboratories. Namely, the Gyroscopes In General Relativity (GINGER) project aims at measuring post-Newtonian effects, such as the gravito-magnetic ones, in an Earth-based laboratory, by means of a ring laser array. Here, we first review the theoretical foundations of the Sagnac effect, on which ring lasers are based, and then, we study the Sagnac effect in a terrestrial laboratory, emphasizing the origin of the gravitational contributions that GINGER aims at measuring. Moreover, we show that accurate measurements allow one to set constraints on theories of gravity different from general relativity. Eventually, we describe the experimental setup of GINGER. View Full-Text
Keywords: Sagnac effect; ring laser; tests of gravity theories; gravito-magnetism Sagnac effect; ring laser; tests of gravity theories; gravito-magnetism

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Ruggiero, M.L. Sagnac Effect, Ring Lasers and Terrestrial Tests of Gravity. Galaxies 2015, 3, 84-102.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Galaxies EISSN 2075-4434 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top