Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED

• URL: http://arxiv.org/abs/2511.04744v1
• Date: Thu, 06 Nov 2025 19:00:03 GMT
• Title: Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED
• Authors: Gian Marcello Andolina, Zeno Bacciconi, Alberto Nardin, Marco Schirò, Peter Rabl, Daniele De Bernardis,
• Abstract summary: We analyze the recently observed breakdown of the integer quantum Hall effect in a two-dimensional electron gas embedded in a metallic split-ring resonator.<n>We identify a mechanism that could potentially explain this breakdown in terms of non-chiral edge channels arising from electrostatic boundary effects.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We analyze the recently observed breakdown of the integer quantum Hall effect in a two-dimensional electron gas embedded in a metallic split-ring resonator. By accounting for both the quantized vacuum field and electrostatic boundary modifications, we identify a mechanism that could potentially explain this breakdown in terms of non-chiral edge channels arising from electrostatic boundary effects. For experimentally relevant geometries, a minimal single-electron model of this mechanism predicts characteristic signatures and energy scales consistent with those observed in experiments. These predictions can be directly tested against alternative, purely vacuum-induced explanations to shed further light on the origin of this puzzling phenomenon.

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