Direct signatures of Anderson orthogonality catastrophe in nonequilibrium quantum dots
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916826388103168 |
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| author | Sankar, Sarath Folk, Joshua Meir, Yigal Sela, Eran |
| author_facet | Sankar, Sarath Folk, Joshua Meir, Yigal Sela, Eran |
| contents | We propose schemes for unambiguous direct observation of Anderson orthogonality catastrophe (AOC) effects in a quantum dot coupled to a charge detector, and to estimate the strength of the AOC exponent $α$. We show that certain easy-to-measure observables have a robust dependence on $α$ in the non-equilibrium regimes of source-drain voltage bias or thermal imbalance. Our results are obtained using a rate equation formalism in which the AOC effects on tunnel rates are incorporated in an exact manner. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_03763 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Direct signatures of Anderson orthogonality catastrophe in nonequilibrium quantum dots Sankar, Sarath Folk, Joshua Meir, Yigal Sela, Eran Mesoscale and Nanoscale Physics We propose schemes for unambiguous direct observation of Anderson orthogonality catastrophe (AOC) effects in a quantum dot coupled to a charge detector, and to estimate the strength of the AOC exponent $α$. We show that certain easy-to-measure observables have a robust dependence on $α$ in the non-equilibrium regimes of source-drain voltage bias or thermal imbalance. Our results are obtained using a rate equation formalism in which the AOC effects on tunnel rates are incorporated in an exact manner. |
| title | Direct signatures of Anderson orthogonality catastrophe in nonequilibrium quantum dots |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2507.03763 |