Superconducting Diode Effect due to Chiral Meissner Currents in a Hollow Superconducting Helix
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866911324265512960 |
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| author | Deenen, Axel J. M. Grundler, Dirk |
| author_facet | Deenen, Axel J. M. Grundler, Dirk |
| contents | The superconducting diode effect (SDE) is a key nonreciprocal phenomenon with broad relevance for superconducting electronics. Using time-dependent Ginzburg-Landau simulations, we predict and quantify a superconducting diode effect arising solely from geometric chirality imposed to a conventional superconductor. The helical geometry and magnetic-field-induced screening currents produce inequivalent critical currents for opposite polarities. The diode efficiency reaches a maximum when one current direction first nucleates vortices, revealing a chirality-controlled crossover between screening- and vortex-dominated nonreciprocity. These results establish mesoscopic geometric chirality as a robust mechanism for supercurrent rectification in an achiral superconductor. They suggest an experimentally accessible route towards 3D superconducting diodes for multi-level integrated quantum circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_15304 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Superconducting Diode Effect due to Chiral Meissner Currents in a Hollow Superconducting Helix Deenen, Axel J. M. Grundler, Dirk Superconductivity The superconducting diode effect (SDE) is a key nonreciprocal phenomenon with broad relevance for superconducting electronics. Using time-dependent Ginzburg-Landau simulations, we predict and quantify a superconducting diode effect arising solely from geometric chirality imposed to a conventional superconductor. The helical geometry and magnetic-field-induced screening currents produce inequivalent critical currents for opposite polarities. The diode efficiency reaches a maximum when one current direction first nucleates vortices, revealing a chirality-controlled crossover between screening- and vortex-dominated nonreciprocity. These results establish mesoscopic geometric chirality as a robust mechanism for supercurrent rectification in an achiral superconductor. They suggest an experimentally accessible route towards 3D superconducting diodes for multi-level integrated quantum circuits. |
| title | Superconducting Diode Effect due to Chiral Meissner Currents in a Hollow Superconducting Helix |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2512.15304 |