This book describes the statistical mechanics of classical
spin systems with quenched disorder. The first part of the book
covers the physics of spin-glass states using results obtained
within the framework of the mean field theory of spin glasses. The
technique of replica symmetry breaking is explained in detail,
along with a discussion of the underlying physics. The second part
is devoted to the theory of critical phenomena in the presence of
weak quenched disorder. This includes a systematic derivation of
the traditional renormalization group theory, which is then used to
obtain a new 'random' critical regime in disordered vector
ferromagnets and in the two-dimensional Ising model. The third part
of the book describes other types of disordered systems, relating
to new results at the frontiers of modern research. The book is
suitable for graduate students and researchers in the field of
statistical mechanics of disordered systems.
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