Semi-classical understanding of flux quantization in superconductors

Abstract

Like electric charge, magnetic flux is also quantised. Theoretically, one can show that the flux quantum must be h/e, as observed in the quantum Hall effect. However, in the superconducting systems, the flux quantum is experimentally observed as h/2e. There is no fundamental explanation for the empirical result. In this article, we argue that this phenomenon is fundamentally linked to the nonlocality problem of the Aharonov-Bohm effect and present a new semi-classical explanation for the magnetic flux quantum in superconductivity. This work will also show why the flux quantum should be h/e in the case of the quantum Hall effect.

18 pages

References in corpus (4)

• BCS theory of superconductivity: the world's largest Madoff scheme?
• The origin of the Meissner effect in new and old superconductors
• Explanation of the Meissner Effect and Prediction of a Spin Meissner Effect in Low and High $T_c$ Superconductors
• Schroedinger representation of quantum mechanics, Berry connection, and superconductivity