Symmetry-protected topological phases of alkaline-earth cold fermionic atoms in one dimension H. Nonne, M. Moliner, S. Capponi, P. Lecheminant and K. Totsuka EPL, 102 3 (2013) 37008 Published online: 20 May 2013 DOI: 10.1209/0295-5075/102/37008