𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Renormalization group approach to function approximation and to improving subsequent approximations

✍ Scribed by G. N. Nikolaev

Book ID
106542166
Publisher
SP MAIK Nauka/Interperiodica
Year
2010
Tongue
English
Weight
509 KB
Volume
164
Category
Article
ISSN
0040-5779

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Functional renormalization group beyond
Functional renormalization group beyond the static approximation and its application to the two-dimensional Hubbard model
✍ 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