Proposed experimental test of an alternative electrodynamic theory of superconductors

TL;DR

This paper proposes an experiment to test an alternative electrodynamic theory of superconductors, which could significantly impact the understanding of superconductivity if validated.

Contribution

It introduces a novel experimental approach to verify an alternative London electrodynamic theory predicting equal electrostatic and magnetic screening lengths.

Findings

Current experiments do not rule out the alternative theory

Proposed experiment can distinguish between theories

Potential implications for superconductivity understanding

Abstract

An alternative form of London's electrodynamic theory of superconductors predicts that the electrostatic screening length is the same as the magnetic penetration depth. We argue that experiments performed to date do not rule out this alternative formulation and propose an experiment to test it. Experimental evidence in its favor would have fundamental implications for the understanding of superconductivity.