Transient localization from the interaction with quantum bosons
Fuente:
arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866909751838769152 |
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| author | Rammal, H. Ralko, A. Ciuchi, S. Fratini, S. |
| author_facet | Rammal, H. Ralko, A. Ciuchi, S. Fratini, S. |
| contents | We carefully revisit the electron-boson scattering problem, going beyond popular semi-classical treatments. By providing numerically exact results valid at finite temperatures, we demonstrate the existence of a regime of electron-boson scattering where quantum localization processes become relevant despite the absence of extrinsic disorder. Localization in the Anderson sense is caused by the emergent randomness resulting from a large thermal boson population, being effective at transient times before diffusion can set in. Compelling evidence of this transient localization phenomenon is provided by the observation of a distinctive displaced Drude peak (DDP) in the optical absorption and the ensuing suppression of conductivity. Our findings identify a general route for anomalous metallic behavior that can broadly apply in interacting quantum matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_03840 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Transient localization from the interaction with quantum bosons Rammal, H. Ralko, A. Ciuchi, S. Fratini, S. Strongly Correlated Electrons Disordered Systems and Neural Networks Materials Science We carefully revisit the electron-boson scattering problem, going beyond popular semi-classical treatments. By providing numerically exact results valid at finite temperatures, we demonstrate the existence of a regime of electron-boson scattering where quantum localization processes become relevant despite the absence of extrinsic disorder. Localization in the Anderson sense is caused by the emergent randomness resulting from a large thermal boson population, being effective at transient times before diffusion can set in. Compelling evidence of this transient localization phenomenon is provided by the observation of a distinctive displaced Drude peak (DDP) in the optical absorption and the ensuing suppression of conductivity. Our findings identify a general route for anomalous metallic behavior that can broadly apply in interacting quantum matter. |
| title | Transient localization from the interaction with quantum bosons |
| topic | Strongly Correlated Electrons Disordered Systems and Neural Networks Materials Science |
| url | https://arxiv.org/abs/2312.03840 |