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arXiv · 2306.15603

Status of the GINGER project

Carlo Altucci·Francesco Bajardi·Andrea Basti·Nicolò Beverini·Giorgio Carelli·Salvatore Capozziello·Simone Castellano·Donatella Ciampini·Fabrizio Davì·Francesco dell'Isola·Gaetano De Luca·Roberto Devoti·Giuseppe Di Somma·Angela D. V. Di Virgilio·Francesco Fuso·Ivan Giorgio·Aladino Govoni·Enrico Maccioni·Paolo Marsili·Antonello Ortolan·Alberto Porzio·Matteo Luca Ruggiero·Raffaele Velotta
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Abstract

Large frame Ring laser gyroscopes, based on the Sagnac effect, are top sensitivity instrumentation to measure angular velocity with respect to the fixed stars. GINGER (Gyroscopes IN GEneral Relativity) project foresees the construction of an array of three large dimension ring laser gyroscopes, rigidly connected to the Earth. GINGER has the potentiality to measure general relativity effects and Lorentz Violation in the gravity sector, once a sensitivity of $10^{-9}$, or better, of the Earth rotation rate is obtained. Being attached to the Earth crust, the array will also provide useful data for geophysical investigation. For this purpose, it is at present under construction as part of the multi-components observatory called Underground Geophysics at Gran Sasso (UGSS). Sensitivity is the key point to determine the relevance of this instrument for fundamental science. The most recent progress in the sensitivity measurement, obtained on a ring laser prototype called GINGERINO, indicates that GINGER should reach the level of 1 part in $10^{11}$ of the Earth rotation rate.

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Carlo Altucci, Francesco Bajardi, Andrea Basti, Nicolò Beverini, Giorgio Carelli, Salvatore Capozziello, Simone Castellano, Donatella Ciampini, Fabrizio Davì, Francesco dell'Isola, Gaetano De Luca, Roberto Devoti, Giuseppe Di Somma, Angela D. V. Di Virgilio, Francesco Fuso, Ivan Giorgio, Aladino Govoni, Enrico Maccioni, Paolo Marsili, Antonello Ortolan, Alberto Porzio, Matteo Luca Ruggiero, Raffaele Velotta. 2023-07-12. Status of the GINGER project. https://arxiv.org/abs/2306.15603

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