In the early 1970s, Wilson developed the concept of a fully nonperturbative renormalization
group transformation. When applied to the Kondo problem, this numerical renormalization …

The ordinary single-channel Kondo model consists of one or more spin-½ local moments
interacting antiferromagnetically with conduction electrons in a metal. This model has …

Abelian bosonization is used to map the two-channel Kondo problem into a resonant-level
Hamiltonian, which is equivalent to noninteracting fermions for a particular value of the …

We present a technique for the calculation of dynamical correlation functions of quantum
impurity systems in equilibrium with Wilson's numerical renormalization group. Our …

A detailed derivation of the recently proposed time-dependent numerical renormalization-
group (TD-NRG) approach to nonequilibrium dynamics in quantum-impurity systems is …

The multichannel Kondo model exhibits non-Fermi-liquid behavior in the overscreened
case, when the number of channels, k, is greater than twice the size of the impurity spin, s …

We study singularities in the differential resistance of metal point contacts containing
structural disorder. We find zero-bias features which are well described by theories in which …

We review analytical and numerical results derived from the Bethe ansatz solution of the n-
channel Kondo model of arbitrary spin S as a function of temperature, external field, impurity …

We present a pedagogical and critical overview of the two-channel Kondo model and its
possible relevance to a number of non-Fermi-liquid alloys and compounds. We survey the …

The Kondo effect assumes a central role in condensed matter physics. It describes the
exchange scattering of electrons with a localized moment and occurs in a wide range of …