Quantum Field Theory: From Operators to Path Integrals, 2nd Edition

"The description of low dimensional systems, e.g. one-dimensional conductors, is added. Moreover, in the appendix C, Polchinski's renormation equation is derived, solved and applied to the asymptotically free scalar field." (Zentralblatt MATH, 2010)

"Written by a highly respected textbook writer and researcher, this book has a more general scope and adopts a more practical approach than other books." (ETDE - Energy Database, 2010)