Optimal scaling of persistent currents for interacting bosons on a ring M. Cominotti, M. Rizzi, D. Rossini, D. Aghamalyan, L. Amico, L.C. Kwek, F. Hekking and A. Minguzzi Eur. Phys. J. Special Topics, 224 3 (2015) 519-524 Published online: 09 April 2015 DOI: 10.1140/epjst/e2015-02381-3