The phase diagram of the anisotropic Spin-1 Heisenberg Chain

TL;DR

This paper uses the Density Matrix Renormalization Group to analyze the phase diagram of the anisotropic Spin-1 Heisenberg chain, focusing on the transition point to the Haldane phase.

Contribution

It provides new insights into the phase boundaries and the emergence of the Haldane phase in the Spin-1 XXZ chain using advanced numerical methods.

Findings

Identification of the phase transition point to the Haldane phase

Clarification of the phase diagram structure

Numerical evidence supporting the phase boundary

Abstract

We applied the Density Matrix Renormalization Group to the XXZ spin-1 quantum chain. In studing this model we aim to clarify controversials about the point where the massive Haldane phase appears.