Berry phases and zero-modes in toroidal topological insulator Jakson M. Fonseca, Vagson L. Carvalho-Santos, Winder A. Moura-Melo and Afranio R. Pereira Eur. Phys. J. B, 89 6 (2016) 153 Published online: 15 June 2016 DOI: 10.1140/epjb/e2016-70076-8