Superconducting Photocurrent and Light Enriched Supercurrent Phase Relation
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908441081020416 |
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| author | Matsyshyn, Oles Song, Justin C. W. |
| author_facet | Matsyshyn, Oles Song, Justin C. W. |
| contents | Noncentrosymmetric superconductors are expected to exhibit DC photocurrents even for irradiation frequencies below the superconducting gap. Such superconducting photocurrent are non-dissipative and track the quantum geometry of the superconducting state. Here we argue that superconducting photocurrent drives changes to the constitutive superconducting current phase relation (CPR) manifesting in a light controlled inductive response as well as altering the critical current. For chiral incident light, we find that superconducting photocurrent can transform reciprocal CPR into a non-reciprocal CPR producing a non-reciprocal inductance and light-controlled superconducting diode effect. These provide a protocol for measuring superconducting photocurrent and new tools for mapping the quantum geometry and order parameter of superconductors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_06290 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Superconducting Photocurrent and Light Enriched Supercurrent Phase Relation Matsyshyn, Oles Song, Justin C. W. Superconductivity Mesoscale and Nanoscale Physics Noncentrosymmetric superconductors are expected to exhibit DC photocurrents even for irradiation frequencies below the superconducting gap. Such superconducting photocurrent are non-dissipative and track the quantum geometry of the superconducting state. Here we argue that superconducting photocurrent drives changes to the constitutive superconducting current phase relation (CPR) manifesting in a light controlled inductive response as well as altering the critical current. For chiral incident light, we find that superconducting photocurrent can transform reciprocal CPR into a non-reciprocal CPR producing a non-reciprocal inductance and light-controlled superconducting diode effect. These provide a protocol for measuring superconducting photocurrent and new tools for mapping the quantum geometry and order parameter of superconductors. |
| title | Superconducting Photocurrent and Light Enriched Supercurrent Phase Relation |
| topic | Superconductivity Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2507.06290 |