Goldstone mode kink-solitons in double layer quantum Hall systems

TL;DR

This paper demonstrates that in charge unbalanced double layer quantum Hall systems, Goldstone mode kink-solitons form moving localized charge-density waves that could be observed experimentally and influence charge transport.

Contribution

It introduces the concept of Goldstone mode kink-solitons in double layer quantum Hall systems and describes their properties and potential experimental observation.

Findings

Kink-solitons form in charge unbalanced systems with zero tunneling.

These solitons move with the gapless spin-wave velocity.

They influence diffusionless charge transport.

Abstract

It is shown that in charge unbalanced double layer quantum Hall system with zero tunneling pseudospin Goldstone mode excitations form moving kink-soliton in weakly nonlinear limit. This charge-density localization moves with a velocity of gapless linear spin-wave mode and could be easily observed experimentally. We claim that mentioned Goldstone mode kink-solitons define diffusionless charge transport properties in double layer quantum Hall systems.