Theoretical ideas and experimental results concerning high-temperature superconductors
are reviewed. Special emphasis is given to calculations performed with the help of …

Organic materials have provided theorists with an extraordinary laboratory to study the
effects of interactions in solids. Indeed the physics of strongly correlated electrons is one of …

This book presents in a pedagogical yet complete way correlated systems in one dimension.
Recent progress in nanotechnology and material research have made one dimensional …

We review the progress in the theory of one-dimensional (ID) Fermi liquids which has
occurred over the past decade. The usual Fermi liquid theory, based on a quasi-particle …

Using the density matrix renormalization group and a bosonization approach, we study a
spin-1/2 antiferromagnetic Heisenberg chain with near-neighbor coupling J 1 and frustrating …

A theoretical review is given on high temperature superconductivity in copper oxides
(cuprates) by focusing on the hole do** cases based on the view that it is realized in …

Perturbation series expansion methods are sophisticated numerical tools used to provide
quantitative calculations in many areas of theoretical physics. This book gives a …

Historically, quasi-low-dimensional superconductors were considered as the main
candidates to observe high-temperature superconductivity. For a discussion of the related …

We study the interplay between stripes and d-wave superconductivity in the two-dimensional
t− t′− J model using a variational Monte Carlo method. The next-nearest-neighbor hop** …

A homologous series of cuprates, Sr n-1 Cu n+ 1 O 2n, formed by introducing a parallel
array of planar defects into the infinite-layer cuprate, SrCuO 2, have been reported by …