# Microscopic theory of fractional excitations in gapless quantum Hall states: semi-quantized quantum Hall states

@article{Turker2019MicroscopicTO,
title={Microscopic theory of fractional excitations in gapless quantum Hall states: semi-quantized quantum Hall states},
author={Ouguz Turker and Tobias Meng},
journal={SciPost Physics},
year={2019}
}
• Published 23 October 2019
• Physics
• SciPost Physics
We derive the low-energy theory of semi-quantized quantum Hall states, a recently observed class of gapless bilayer fractional quantum Hall states. Our theory shows these states to feature gapless quasiparticles of fractional charge coupled to an emergent Chern-Simons gauge field. These gapless quasiparticles can be understood as composites of electrons and Laughlin-like quasiparticles. We show that semi-quantized quantum Hall states exhibit perfect interlayer drag, host non-Fermi liquid…

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