The movement of a one-dimensional Wigner solid explained by a modified Frenkel-Kontorova model Wolfgang Quapp, Jui-Yin Lin and Josep Maria Bofill Eur. Phys. J. B, 93 12 (2020) 227 Published online: 07 December 2020 DOI: 10.1140/epjb/e2020-10421-x