Download or read book Introduction to Statistical Field Theory written by Edouard Brézin and published by Cambridge University Press. This book was released on 2010-07-22 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of the renormalization group and field theory is a key part of physics, and is essential in condensed matter and particle physics. Written for advanced undergraduate and beginning graduate students, this textbook provides a concise introduction to this subject. The textbook deals directly with the loop expansion of the free energy, also known as the background field method. This is a powerful method, especially when dealing with symmetries, and statistical mechanics. In focussing on free energy, the author avoids long developments on field theory techniques. The necessity of renormalization then follows.