The density-matrix renormalization group (DMRG) is a numerical algorithm for the efficient
truncation of the Hilbert space of low-dimensional strongly correlated quantum systems …

We present an up-to-date survey of theoretical concepts and results in the field of one-
dimensional magnetism and of their relevance to experiments and real materials. Main …

The first accounts of magnetism date back to the ancient Greeks who also gave magnetism
its name. It derives from Magnesia, a Greek town and province in Asia Minor, the …

The density matrix renormalization group (DMRG) has become a powerful numerical
method that can be applied to low-dimensional strongly correlated fermionic and bosonic …

Abstract The Coupled Cluster Method (CCM) is one of the most powerful and universally
applied techniques of quantum many-body theory. In particular, it has been used extensively …

A three-dimensional mixed-valent iron (II, III) trans-1, 4-cyclohexanedicarboxylate, 1, 4-chdc,
coordination polymer,[FeIIFeIII (μ4-O)(1, 4-chdc) 1.5]∞, 1, has been synthesized …

We present a brief survey of the recent theoretical work related to generic Heisenberg spin
models describing quasi-one-dimensional quantum ferrimagnets. The emphasis is on …

Using exact numerical diagonalization and the conformal field theory approach, we study
the effect of magnetic frustrations due to diagonal exchange bonds in a system of two …

Recently, it has been shown that two dimensional frustrated mixed-spin systems with
anisotropic exchange interactions display supersolid phases in their ground state phase …

We investigate the ground-state phase diagram of frustrated mixed-spin (1, 1/2) chains with
three-site four-spin interactions employing different approaches, such as cluster mean field …