Engineering the localization transition in a Charge-Kondo circuit
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909930822303744 |
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| author | Ma, Zhanyu Han, Cheolhee Pierre, F. Sela, Eran |
| author_facet | Ma, Zhanyu Han, Cheolhee Pierre, F. Sela, Eran |
| contents | Charge Kondo circuits consist of metallic islands connected by single-mode quantum point contacts (QPCs). The island's charging energy makes these circuits tunable quantum simulators of various strongly interacting models. Here we propose a circuit that realizes the Kondo effect with effective Luttinger-liquid interactions, and show that it undergoes a localization transition in which the QPC transmission is fully suppressed below a critical value. Experimental signatures include a diverging charge susceptibility and an entropy step. Our findings open a path toward realizing localization transitions in more exotic settings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_22577 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Engineering the localization transition in a Charge-Kondo circuit Ma, Zhanyu Han, Cheolhee Pierre, F. Sela, Eran Mesoscale and Nanoscale Physics Strongly Correlated Electrons Charge Kondo circuits consist of metallic islands connected by single-mode quantum point contacts (QPCs). The island's charging energy makes these circuits tunable quantum simulators of various strongly interacting models. Here we propose a circuit that realizes the Kondo effect with effective Luttinger-liquid interactions, and show that it undergoes a localization transition in which the QPC transmission is fully suppressed below a critical value. Experimental signatures include a diverging charge susceptibility and an entropy step. Our findings open a path toward realizing localization transitions in more exotic settings. |
| title | Engineering the localization transition in a Charge-Kondo circuit |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2511.22577 |