While it is an "introductory" QFT book for condensed matter, it is not "easy."
Condensed Matter Field Theory by Alexander Altland and Ben Simons is widely considered the "gold standard" for graduate students and researchers transitioning from introductory many-body physics to the modern language of quantum field theory (QFT). Condensed Matter Field Theory, Second Edition
The book is famous for its detailed walkthrough of the "Non-linear Sigma Model," a topic often glossed over in other texts. 3. Style and Tone While it is an "introductory" QFT book for
The explanation of how physics changes across scales is exceptionally clear. Condensed Matter Field Theory, Second Edition
The problems at the end of each chapter are excellent but demanding. They aren't "plug-and-chug"; they often require you to derive a seminal result in the field. Who is this for?