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Quantum criticality of spinons

He, Feng; Jiang, Yuzhu; Yu, Yi-Cong; Lin, H.-Q.; Guan, Xi-Wen

Description

Magnon bound states emerging in one-dimensional (1D) spin chains still lack a rigorous understanding. In this Rapid Communication we show that the length-1 spin strings significantly dominate the critical properties of spinons, magnons, and free fermions in the 1D antiferromagnetic spin-1/2 chain. Using the Bethe ansatz solution, we analytically calculate the scaling functions of the thermal and magnetic properties of the model, providing a rigorous understanding of the quantum criticality of...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/247425
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.96.220401
Access Rights: Open Access

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