Semideterministic and stochastic sampling of Feynman diagrams with 1/N_{f} expansions

We introduce a family of (semi)-bold-line series, assisted with 1/N_{f} expansions, with N_{f} being the number of fermion flavors. If there is no additional N_{f} cut, the series reduces to the random phase approximation series in the density-density channel, complementary to the particle-hole and...

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Bibliographic Details
Main Author: Boyuan Shi
Format: Article
Language:English
Published: American Physical Society 2025-05-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.7.023177
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