An Abelian Higgs model of pulsed field magnetization in superconductors

TL;DR

This paper develops a one-dimensional Abelian Higgs model to simulate pulsed magnetic field interactions with superconductors, revealing how defects influence magnetic trapping and order parameter behavior.

Contribution

It introduces a novel 1D Maxwell-Ginzburg-Landau model for pulsed fields in superconductors, including defect effects, validated through numerical simulations.

Findings

Defects increase remanent vector potential.

Defects reduce the modulus of the order parameter.

Model aligns with experimental observations.

Abstract

Pulsed field magnetization leads to trapped magnetic field persistent for long times.We present a one-dimensional model of the interaction between an electromagnetic wave and a superconducting slab based on the Maxwell-Ginzburg-Landau (Abelian Higgs) theory. We first derive the model starting from a Lagrangian coupling the electromagnetic field with the Ginzburg-Landau potential for the superconductor. Then we explore numerically its capabilities by applying a Gaussian vector potential pulse and monitoring usual quantities such as the modulus and the phase of the order parameter. We also introduce defects in the computational domain. We show that the presence of defects enhances the remanent vector potential and diminishes the modulus of the order parameter, in agreement with existing experiments.