Leading corrections to finite-size scaling for mixed-spin chains
R. Bischof, P. R. Crompton+*
Institut für Theoretische Physik, Universität Leipzig, D-04109 Leipzig, Germany
+Institut für Theoretische Physik I, Universität Hamburg, D-20355 Hamburg, Germany
*Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
PACS: 75.10.Jm, 75.40.Cx
Abstract
We identify the leading corrections to finite-size scaling
relations for the correlation length and twist order parameter of three
mixed-spin quantum spin chains for the critical feature that develops at,
θ=π, corresponding to a change in the topological realisation of the
groundstates.