Detector-tuned overlap catastrophe in quantum dots
Fuente:
arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866909295498493952 |
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| author | Sankar, Sarath Bertrand, Corentin Georges, Antoine Sela, Eran Meir, Yigal |
| author_facet | Sankar, Sarath Bertrand, Corentin Georges, Antoine Sela, Eran Meir, Yigal |
| contents | The Anderson overlap catastrophe (AOC) is a many-body effect arising as a result of a shakeup of a Fermi sea due to an abrupt change of a local potential, leading to a power-law dependence of the density of states on energy. Here we demonstrate that a standard quantum-dot detector can be employed as a highly tuneable probe of the AOC, where the power law can be continuously modified by a gate voltage. We show that signatures of the AOC have already appeared in previous experiments, and give explicit predictions allowing to tune and pinpoint their non-perturbative aspects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_04207 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Detector-tuned overlap catastrophe in quantum dots Sankar, Sarath Bertrand, Corentin Georges, Antoine Sela, Eran Meir, Yigal Mesoscale and Nanoscale Physics The Anderson overlap catastrophe (AOC) is a many-body effect arising as a result of a shakeup of a Fermi sea due to an abrupt change of a local potential, leading to a power-law dependence of the density of states on energy. Here we demonstrate that a standard quantum-dot detector can be employed as a highly tuneable probe of the AOC, where the power law can be continuously modified by a gate voltage. We show that signatures of the AOC have already appeared in previous experiments, and give explicit predictions allowing to tune and pinpoint their non-perturbative aspects. |
| title | Detector-tuned overlap catastrophe in quantum dots |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2402.04207 |