A physical picture of superconductivity: Close-shell inversion

摘要

In this paper, we propose a simple and universal physical picture of superconductivity, which is called the "close-shell inversion". With this picture, the basic properties of a superconductor, such as zero-resistance and Meissner effect, are well accounted. The emphasis is placed on the field screening mechanism of a superconductor subject to an external magnetic field.