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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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2017-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-00355-w |