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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.01673 |
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| _version_ | 1866911705724878848 |
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| author | Sato, Takumi Hayami, Satoru Kobayashi, Shingo Asano, Yasuhiro |
| author_facet | Sato, Takumi Hayami, Satoru Kobayashi, Shingo Asano, Yasuhiro |
| contents | This paper discusses the origin of a nonuniform superconducting state in which Cooper pairs have a small but finite center-of-mass momentum. We analyze the instability of the normal state to such finite-momentum states using the pole of the pair fluctuation propagator in weak-coupling superconductors. The finite-momentum superconducting state is realized when the odd-frequency pairing correlations in the uniform superconducting state are expected to have sufficiently large amplitudes. We provide a perspective for a comprehensive understanding of inhomogeneous superconductivity and related phenomena. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_01673 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Finite-momentum superconducting states due to odd-frequency Cooper pairing correlations Sato, Takumi Hayami, Satoru Kobayashi, Shingo Asano, Yasuhiro Superconductivity This paper discusses the origin of a nonuniform superconducting state in which Cooper pairs have a small but finite center-of-mass momentum. We analyze the instability of the normal state to such finite-momentum states using the pole of the pair fluctuation propagator in weak-coupling superconductors. The finite-momentum superconducting state is realized when the odd-frequency pairing correlations in the uniform superconducting state are expected to have sufficiently large amplitudes. We provide a perspective for a comprehensive understanding of inhomogeneous superconductivity and related phenomena. |
| title | Finite-momentum superconducting states due to odd-frequency Cooper pairing correlations |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2503.01673 |