Description
This book is about quantum field theory and statistical physics. It covers systems with an infinite number of degrees of freedom and the path integral approach has been useful for understanding the most complex problems in these fields.
Volume II is devoted to quantum field theory and statistical physics. It deals with systems with an infinite number of degrees of freedom. The full mathematical foundation is not yet completely established in this case. However, the path integral approach has proved extremely useful for the understanding of the most complex problems in quantum field theory, cosmology, condensed matter physics, etc.