Time-resolved quantum correlations in electronic noise
Fuente:
arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866913314462760960 |
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| author | Simoneau, Jean-Olivier Jezouin, Sébastien Lupien, Christian Reulet, Bertrand |
| author_facet | Simoneau, Jean-Olivier Jezouin, Sébastien Lupien, Christian Reulet, Bertrand |
| contents | The statistics of quantum transport in nanostructures can be tailored by a time-dependent bias voltage $V(t)$. We demonstrate experimentally how correlations of current fluctuations at two different times $t$ and $t+τ$ depend on the shape of $V(t)$ via the phase accumulated by the electronic wavefunctions between $t$ and $t+τ$. For this we measure the current-current correlation of the shot noise of an ac+dc biased tunnel junction using a 10 GHz bandwidth, time-resolved detection. Our result allows to explore correlations within a single excitation period. It demonstrates the counterpart of the ac Josephson effect in superconducting junctions, to a normal, non-superconducting mesoscopic device. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_09068 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Time-resolved quantum correlations in electronic noise Simoneau, Jean-Olivier Jezouin, Sébastien Lupien, Christian Reulet, Bertrand Mesoscale and Nanoscale Physics Quantum Physics The statistics of quantum transport in nanostructures can be tailored by a time-dependent bias voltage $V(t)$. We demonstrate experimentally how correlations of current fluctuations at two different times $t$ and $t+τ$ depend on the shape of $V(t)$ via the phase accumulated by the electronic wavefunctions between $t$ and $t+τ$. For this we measure the current-current correlation of the shot noise of an ac+dc biased tunnel junction using a 10 GHz bandwidth, time-resolved detection. Our result allows to explore correlations within a single excitation period. It demonstrates the counterpart of the ac Josephson effect in superconducting junctions, to a normal, non-superconducting mesoscopic device. |
| title | Time-resolved quantum correlations in electronic noise |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2404.09068 |