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arXiv · 2102.03886

Extended Nappi-Witten Geometry for the Fractional Quantum Hall Effect

Patricio Salgado-Rebolledo·Giandomenico Palumbo
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Abstract

Motivated by the recent progresses in the formulation of geometric theories for the fractional quantum Hall states, we propose a novel non-relativistic geometric model for the Laughlin states based on an extension of the Nappi-Witten geometry. We show that the U(1) gauge sector responsible for the fractional Hall conductance, the gravitational Chern-Simons action and Wen-Zee term associated to the Hall viscosity can be derived from a single Chern-Simons theory with a gauge connection that takes values in the extended Nappi-Witten algebra. We then provide a new derivation of the chiral boson associated to the gapless edge states from the Wess-Zumino-Witten model that is induced by the Chern-Simons theory on the boundary.

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Patricio Salgado-Rebolledo, Giandomenico Palumbo. 2021-02-07. Extended Nappi-Witten Geometry for the Fractional Quantum Hall Effect. https://doi.org/10.1103/physrevd.103.125006

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