Sensitivity limit investigation of a Sagnac gyroscope through linear regression analysis

Angela D. Di Virgilio; Carlo Altucci; Francesco Bajardi; Andrea Basti; Nicolò Beverini; Salvatore Capozziello; Giorgio Carelli; Donatella Ciampini; Francesco Fuso; Umberto Giacomelli; Enrico Maccioni; Paolo Marsili; Antonello Ortolan; Alberto Porzio; Andrea Simonelli; Giuseppe Terreni; Raffaele Velotta

doi:10.1140/epjc/s10052-021-09199-1

2022 Impact factor 4.4

Particles and Fields

Open Access

This article has an erratum: [https://doi.org/10.1140/epjc/s10052-021-09231-4]

Eur. Phys. J. C (2021) 81: 400
https://doi.org/10.1140/epjc/s10052-021-09199-1

Regular Article - Experimental Physics

Sagnac gyroscope sensitivity limit

Angela D. Di Virgilio¹^a, Carlo Altucci², Francesco Bajardi², Andrea Basti¹^,3, Nicolò Beverini³, Salvatore Capozziello², Giorgio Carelli³, Donatella Ciampini³, Francesco Fuso³, Umberto Giacomelli¹, Enrico Maccioni¹^,3, Paolo Marsili³, Antonello Ortolan⁴, Alberto Porzio⁵, Andrea Simonelli¹, Giuseppe Terreni¹ and Raffaele Velotta²

¹ INFN Sez. di Pisa, Largo B. Pontecorvo 3, Pisa, Italy
² Dipartimento di Fisica Ettore Pancini, Università di Napoli Federico II and INFN, Complesso Univ. Monte Sant’Angelo, Via Cintia, Naples, Italy
³ Dipartimento di Fisica Enrico Fermi, Università di Pisa, Largo B. Pontecorvo 3, Pisa, Italy
⁴ INFN-National Laboratories of Legnaro, viale dell’Università 2, 35020, Legnaro, PD, Italy
⁵ CNR-SPIN and INFN, Napoli, Complesso Univ. Monte Sant’Angelo, Via Cintia, Naples, Italy

^a angela.divirgilio@pi.infn.it

Received: 21 January 2021
Accepted: 30 April 2021
Published online: 8 May 2021

Abstract

The sensitivity to angular rotation of the top class Sagnac gyroscope GINGERINO is carefully investigated with standard statistical means, using 103 days of continuous operation and the available geodesic measurements of the Earth angular rotation rate. All features of the Earth rotation rate are correctly reproduced. The unprecedented sensitivity of fractions of frad/s is attained for long term runs. This excellent sensitivity and stability put Sagnac gyroscopes at the forefront for fundamental physics, in particular for tests of general relativity and Lorentz violation, where the sensitivity plays the key role to provide reliable data for deeper theoretical investigations.

Erratum to this article: https://doi.org/10.1140/epjc/s10052-021-09231-4

© The Author(s) 2021

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