Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909891576201216 |
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| author | Andolina, Gian Marcello Bacciconi, Zeno Nardin, Alberto Schirò, Marco Rabl, Peter De Bernardis, Daniele |
| author_facet | Andolina, Gian Marcello Bacciconi, Zeno Nardin, Alberto Schirò, Marco Rabl, Peter De Bernardis, Daniele |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_04744 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED Andolina, Gian Marcello Bacciconi, Zeno Nardin, Alberto Schirò, Marco Rabl, Peter De Bernardis, Daniele Mesoscale and Nanoscale Physics Quantum Physics 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. |
| title | Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2511.04744 |