Journal article
Finite size scaling of the spin stiffness of the antiferromagnetic S=½ XXZ chain
Abstract
Abstract: We study the finite size scaling of the spin stiffness for the one-dimensional s = ½ quantum antiferromagnet as a function of the anisotropy parameter Δ. Previous Bethe ansatz results allow a determination of the stiffness in the thermodynamic limit. The Bethe ansatz equations for finite systems are solvable even in the presence of twisted boundary conditions, a fact we exploit to determine the stiffness exactly for finite systems …
Authors
Laflorencie N; Capponi S; Sørensen ES
Journal
The European Physical Journal B, Vol. 24, No. 1, pp. 77–84
Publisher
Springer Nature
Publication Date
November 2001
DOI
10.1007/s100510170024
ISSN
1434-6028