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Renormalization group approach to the one-dimensional hubbard model

✍ Scribed by Hiroshi Takano; Masuo Suzuki


Book ID
108002543
Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
277 KB
Volume
109
Category
Article
ISSN
0378-4371

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Functional renormalization group beyond
✍ Hirokazu Takashima; Ryotaro Arita; Kazuhiko Kuroki; Hideo Aoki πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 240 KB

While the functional renormalization group is a powerful theoretical method, the static approximation has been usually adopted in which the Matsubara frequency dependence of vertex functions is ignored. We propose a formalism beyond the static approximation with an efficient parameterization in the