Tunneling of a Quantized Vortex: Roles of Pinning and Dissipation

TL;DR

This paper presents a theoretical analysis of how pinning and dissipation influence vortex tunneling in superconductors, revealing their suppressive effects on vortex dynamics related to the Magnus force.

Contribution

It provides analytical results on vortex tunneling considering pinning and dissipation, advancing understanding of their roles in superconductor vortex behavior.

Findings

Pinning and dissipation suppress vortex tunneling effects.

Analytical results applicable to experimental conditions.

Magnus force influence is reduced by pinning and dissipation.

Abstract

We have performed a theoretical study of the effects of pinning potential and dissipation on vortex tunneling in superconductors. Analytical results are obtained in various limits relevant to experiment. In general we have found that pinning and dissipation tend to suppress the effect of the vortex velocity dependent part of the Magnus force on vortex tunneling.