# GINGER

## TL;DR

GINGER is a proposed ground-based experiment using large ring laser gyroscopes to measure subtle relativistic effects predicted by General Relativity, such as the De Sitter and Lense-Thirring effects.

## Contribution

This paper discusses the design and potential sensitivity of GINGER, a novel experiment aiming to detect relativistic effects with large ring laser gyroscopes.

## Key findings

- Sensitivity of ~1 frad/s with 40m cavities and 1 day integration.
- Feasibility of measuring gravito-electric and gravito-magnetic effects.
- Construction of GINGER is currently under discussion.

## Abstract

GINGER (Gyroscopes IN GEneral Relativity), based on an array of large dimension ring laser gyroscopes, is aiming at measuring in a ground laboratory the gravito-electric and gravito-magnetic effects (also known as De Sitter and Lense-Thirrings effect), foreseen by General Relativity. The sensitivity depends on the size of the RLG cavities and the cavity losses, considering the present sensitivity, and assuming the total losses of 6 ppm, with 40m perimeter and 1 day of integration time sensitivity of the order of frad/s is attainable. The construction of GINGER is at present under discussion.