Skyrmion Liquid in SU(2)-invariant Quantum Hall Systems
A. G. Green, I. I. Kogan, A. M. Tsvelik
TL;DR
This paper develops a theoretical model describing Skyrmion states in quantum Hall systems near specific filling factors, revealing that at zero Zeeman splitting, the Skyrmion plasma behaves as a liquid of massive Dirac fermions.
Contribution
It introduces a new effective model for Skyrmion liquids in quantum Hall systems at zero Zeeman splitting.
Findings
Skyrmion plasma forms a liquid state
Effective model involves massive 2D Dirac fermions
Behavior observed within realistic temperature ranges
Abstract
We report on a theory of the Skyrmion states which occur in quantum Hall regime near certain filling factors. It is shown that in the limit of zero Zeeman splitting in a realistic temperature range the Skyrmion plasma is a liquid described by the effective model of massive two-dimensional Dirac fermions.
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