Josephson AC effect induced by weak gravitational field

TL;DR

This paper explores the theoretical possibility of observing a Josephson AC effect caused by Earth's gravitational field using gravito-Maxwell formalism, proposing an experimental setup and discussing measurement challenges.

Contribution

It introduces a novel theoretical approach linking gravitational effects to Josephson junction physics through gravito-Maxwell formalism.

Findings

Theoretical prediction of a gravitationally induced Josephson AC effect.

Proposed experimental setup for detecting the effect.

Analysis of measurement difficulties and potential solutions.

Abstract

In this paper we examine the possibility of a Josephson AC effect between two superconductors induced by the Earth's gravitational field, making use of the gravito-Maxwell formalism. The theoretical framework exploits the symmetry between the weak field expansion of the gravitational field and the standard Maxwell formulation, combined with the Josephson junction physics. We also suggest a suitable experimental setup, analysing also the related possible difficulties in measurements.