Reverse circling supercurrents along a superconducting ring

TL;DR

This paper challenges traditional explanations of magnetic flux quantum in superconducting rings, proposing a reinterpretation based on pair translations and predicting reverse supercurrents on the surfaces of superconducting tubes.

Contribution

It introduces a new interpretation of magnetic flux quantum and predicts reverse circling supercurrents, which are not explained by the London equation.

Findings

Reinterpretation of magnetic flux quantum based on pair translations.

Prediction of reverse supercurrents on the surfaces of superconducting tubes.

Thicker superconducting tubes can trap more magnetic flux.

Abstract

The reason why high temperature superconductivity has been being debated is that many basic ideas in literatures are wrong. This work shows that the magnetic flux quantum in a superconducting ring have been inaccurately explained in fact, thus we suggest a reinterpretation of the magnetic flux quantum in a superconducting ring on the basis of the translations of pairs. We also predict that the internal and external surface of a superconducting tube have the reverse circling supercurrents. This means that a more thick tube could trap a larger amount of flux. Both the magnetic flux quantum and the reverse circling supercurrents could not be found with the London equation.