Two-lifetime model for the cuprates revisited
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914589375987712 |
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| author | Herman, František Gelenekyová, Lucia Havranová, Hana Hlubina, Richard |
| author_facet | Herman, František Gelenekyová, Lucia Havranová, Hana Hlubina, Richard |
| contents | Several models of the strange-metal state of the cuprate superconductors postulate the existence of strong inelastic forward scattering of the electrons, but direct evidence of such scattering is missing. Here, we show that angle-resolved photoemission spectroscopy (ARPES) provides a unique tool which can address this issue. We propose a two-lifetime phenomenological model of the superconducting state of the cuprates, and we show that it explains several salient low-energy features of the measured ARPES spectra. The model enables discrimination between forward- and large-angle scattering and, in addition, gives access to the magnitude of the gap function away from the Fermi surface. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_02097 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Two-lifetime model for the cuprates revisited Herman, František Gelenekyová, Lucia Havranová, Hana Hlubina, Richard Superconductivity Disordered Systems and Neural Networks Several models of the strange-metal state of the cuprate superconductors postulate the existence of strong inelastic forward scattering of the electrons, but direct evidence of such scattering is missing. Here, we show that angle-resolved photoemission spectroscopy (ARPES) provides a unique tool which can address this issue. We propose a two-lifetime phenomenological model of the superconducting state of the cuprates, and we show that it explains several salient low-energy features of the measured ARPES spectra. The model enables discrimination between forward- and large-angle scattering and, in addition, gives access to the magnitude of the gap function away from the Fermi surface. |
| title | Two-lifetime model for the cuprates revisited |
| topic | Superconductivity Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2602.02097 |