Padé resummation of many-body perturbation theories
Abstract In a typical scenario the diagrammatic many-body perturbation theory generates asymptotic series. Despite non-convergence, the asymptotic expansions are useful when truncated to a finite number of terms. This is the reason for the popularity of leading-order methods such as the GW approxima...
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| Formato: | article |
| Lenguaje: | EN |
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Nature Portfolio
2017
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/7948b10d48014d819ade677da8421d38 |
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