Charged Pseudospin Textures in Double-Layer Quantum Hall Systems with Spontaneous Interlayer Coherence

TL;DR

This paper investigates meron pseudospin textures in double-layer quantum Hall systems with spontaneous interlayer coherence, estimating core energies, sizes, and the charge gap to understand dissipation mechanisms.

Contribution

It provides a Hartree-Fock analysis of meron pseudospin textures, including core energies and sizes, in the context of broken-symmetry quantum Hall states at filling factor one.

Findings

Calculated meron core energies and sizes.

Estimated charge gap related to dissipation.

Insights into pseudospin textures in quantum Hall systems.

Abstract

We report on a Hartree-Fock approximation study of the meron pseudospin-texture excitations of the broken-symmetry incompressible ground states of double-layer quantum Hall states at $\nu =1$. We have obtained results for meron core energies and core sizes. We use these to estimate the charge gap which determines the activation energy for dissipation in the quantum Hall effect.