Comment on "Square-well model for superconducting pair-potential"
Fuente:
arXiv
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866913567751536640 |
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| author | Sonin, Edouard |
| author_facet | Sonin, Edouard |
| contents | The current-phase relation for a ballistic SNS junction in a 1D wire at T = 0 was derived by Thuneberg [1] neglecting phase gradients in superconducting leads. This invalidates the derivation, since the charge conservation law is violated. The theory of Ref. [1] predicts an unphysical phase jump in the limit of zero normal-layer thickness. In this limit the SNS junction becomes an ideal uniform superconductor, in which the currentis supported by a constant phase gradient without any phase jump. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_12580 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Comment on "Square-well model for superconducting pair-potential" Sonin, Edouard Superconductivity The current-phase relation for a ballistic SNS junction in a 1D wire at T = 0 was derived by Thuneberg [1] neglecting phase gradients in superconducting leads. This invalidates the derivation, since the charge conservation law is violated. The theory of Ref. [1] predicts an unphysical phase jump in the limit of zero normal-layer thickness. In this limit the SNS junction becomes an ideal uniform superconductor, in which the currentis supported by a constant phase gradient without any phase jump. |
| title | Comment on "Square-well model for superconducting pair-potential" |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2410.12580 |