In recent years, the study of ladder materials has developed into a well-established area of
research within the general context of strongly correlated electrons. This effort has been …

The extended and standard tJ models are computationally studied on ladders and planes,
with emphasis on the small J/t region. At couplings compatible with photoemission results for …

This is an introductory course to the Lanczos Method and Density Matrix Renormalization
Group Algorithms (DMRG), two among the leading numerical techniques applied in studies …

The two-dimensional extended t− J model is studied computationally in a broad region of
parameter space, motivated by recent photoemission experiments for the undoped cuprate …

The ground state of the tt′-J ladder with four legs favors a striped charge distribution for the
parameters corresponding to hole-doped cuprate superconductors. We investigate the …

The recently discussed tendency of holes to generate nontrivial spin environments in the
extended two-dimensional t− J model [G. Martins, R. Eder, and E. Dagotto, Phys. Rev. B 60 …

A comprehensive theoretical and experimental study is presented of the magnetic
susceptibility versus temperature\chi (T) of spin S= 1/2 two-and three-leg Heisenberg …

Several experiments in the context of ladder materials have recently shown that the study of
simple models of anisotropic ladders (ie with different couplings along legs and rungs) is …

Using four-site plaquette or rung basis decomposition, the contractor-renormalization
method is applied to two-leg and four-leg t− J ladders and cylinders. Resulting range-2 …

The stability of hole bound states in the t− J model including short-range Coulomb
interactions is analyzed using computational techniques on ladders with up to 2× 30 sites …