Dimerized phase and entanglement in the one-dimensional spin-1 bilinear biquadratic model Ai Min Chen, Yao Heng Su and Honglei Wang Eur. Phys. J. B, 88 10 (2015) 269 Published online: 21 October 2015 DOI: 10.1140/epjb/e2015-60391-y