The Wilson exact renormalization group equation and the anomalous dimension parameter

• Published in: Condensed Matter Physics
• Date: 2013
• Main Author: Bervillier, C.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2013
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120810
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: The Wilson exact renormalization group equation and the anomalous dimension parameter / C. Bervillier // Condensed Matter Physics. — 2013. — Т. 16, № 2. — С. 23003:1-10. — Бібліогр.: 41 назв. — англ.

The non-linear way the anomalous dimension parameter has been introduced in the historic first version of the exact renormalization group equation is compared to current practice. A simple expression for the exactly marginal redundant operator proceeds from this non-linearity, whereas in the linear...