Spin-Wave Theory for s=1 Antiferromagnetic Isotropic Chain

TL;DR

This paper develops a modified spin-wave theory for one-dimensional s=1 antiferromagnetic chains, accurately predicting magnetic excitation energies and correlation functions consistent with numerical results.

Contribution

It introduces a new modification to spin-wave theory tailored for 1D s=1 antiferromagnetic chains, improving agreement with numerical data.

Findings

Accurately predicts magnetic excitation energies.

Provides correlation functions consistent with numerical studies.

Enhances understanding of 1D antiferromagnetic systems.

Abstract

In the paper we describe the modification of spin-wave theory for one-dimensional isotropic antiferromagnet. This theory enables to obtain the energy of magnetic excitations of short wave length and correlation function in agreement with numerical studies.