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Physical review. B, Condensed matter

Scaling approach to two-magnon excitations in quantum spin chains

B. W. Southern, T. S. Liu, David A. Lavis

Published Jun 1, 1989• 19 citations
Publisher

Abstract

A scaling approach to two-magnon excitations in general S quantum spin chains is presented. The local densities of two-magnon excitations can be obtained directly without solving the one-magnon problem beforehand. Special features of the excitation spectrum are related to the complete integrability of the model.
DOI
10.1103/physrevb.39.12160

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