Green's function perspective on the nonlinear density response of quantum many-body systems
Fuente:
arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866916420875452416 |
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| author | Vorberger, Jan Dornheim, Tobias Böhme, Maximilian P. Moldabekov, Zhandos Tolias, Panagiotis |
| author_facet | Vorberger, Jan Dornheim, Tobias Böhme, Maximilian P. Moldabekov, Zhandos Tolias, Panagiotis |
| contents | We derive equations of motion for higher order density response functions using the theory of thermodynamic Green's functions. We also derive expressions for the higher order generalized dielectric functions and polarization functions. Moreover, we relate higher order response functions and higher order collision integrals within the Martin-Schwinger hierarchy. We expect our results to be highly relevant to the study of a variety of quantum many-body systems such as matter under extreme temperatures, densities, and pressures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_01845 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Green's function perspective on the nonlinear density response of quantum many-body systems Vorberger, Jan Dornheim, Tobias Böhme, Maximilian P. Moldabekov, Zhandos Tolias, Panagiotis Strongly Correlated Electrons Statistical Mechanics Plasma Physics We derive equations of motion for higher order density response functions using the theory of thermodynamic Green's functions. We also derive expressions for the higher order generalized dielectric functions and polarization functions. Moreover, we relate higher order response functions and higher order collision integrals within the Martin-Schwinger hierarchy. We expect our results to be highly relevant to the study of a variety of quantum many-body systems such as matter under extreme temperatures, densities, and pressures. |
| title | Green's function perspective on the nonlinear density response of quantum many-body systems |
| topic | Strongly Correlated Electrons Statistical Mechanics Plasma Physics |
| url | https://arxiv.org/abs/2410.01845 |