Thermoelectric Signatures of Kondo Physics in Geometry-Tunable Double Quantum Dots
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866908719792521216 |
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| author | Daroca, Diego Perez Roura-Bas, Pablo |
| author_facet | Daroca, Diego Perez Roura-Bas, Pablo |
| contents | The equilibrium thermoelectric and spectral properties of a double quantum dot system are investigated, with the geometry continuously tuned from series to parallel via a parameter $ p $. Within the non-crossing approximation in the infinite-$ U $ limit, the Kondo peak remains robust, while satellite features and the Kondo temperature show strong sensitivity to the geometry. The Seebeck coefficient exhibits sign reversals and non-monotonic behavior as a result of the interplay between Kondo and satellite peaks. These findings underscore the role of interference and coupling asymmetry in governing transport properties, suggesting routes for geometry-based optimization in nanoscale devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_15910 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Thermoelectric Signatures of Kondo Physics in Geometry-Tunable Double Quantum Dots Daroca, Diego Perez Roura-Bas, Pablo Mesoscale and Nanoscale Physics Strongly Correlated Electrons The equilibrium thermoelectric and spectral properties of a double quantum dot system are investigated, with the geometry continuously tuned from series to parallel via a parameter $ p $. Within the non-crossing approximation in the infinite-$ U $ limit, the Kondo peak remains robust, while satellite features and the Kondo temperature show strong sensitivity to the geometry. The Seebeck coefficient exhibits sign reversals and non-monotonic behavior as a result of the interplay between Kondo and satellite peaks. These findings underscore the role of interference and coupling asymmetry in governing transport properties, suggesting routes for geometry-based optimization in nanoscale devices. |
| title | Thermoelectric Signatures of Kondo Physics in Geometry-Tunable Double Quantum Dots |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2512.15910 |