The Possibility of Checking the Equivalence Principle in a Null Gravitational Redshift by a Two-Resonator Laser System

TL;DR

This paper proposes an optical detector scheme using a two-resonator laser system to test Einstein's equivalence principle through null gravitational redshift experiments and to measure resonator length variations in weak gravitational fields.

Contribution

It introduces a novel optical detection method employing a two-resonator laser system for testing the equivalence principle and measuring gravitational effects.

Findings

Potential to verify Einstein's equivalence principle in gravitational redshift experiments.

Method for calculating resonator length variations due to lunisolar geopotential changes.

Feasibility of using a two-resonator laser system for gravitational measurements.

Abstract

A scheme of an optical detector is proposed for checking Einsteins equivalence principle (EEP) in a null gravitational redshift experiment and for testing methods for calculating the length of a resonator in a weak variable gravitational field by recording the variations of the difference frequency of resonators caused by lunisolar variations of the geopotential in a double or a two-resonator laser system.