Enhancement of Persistent Currents by Hubbard Interactions in Disordered 1D Rings: Avoided Level Crossings Interpretation Michael Kamal, Ziad H. Musslimani et Assa AuerbachJ. Phys. I France, 5 11 (1995) 1487-1499DOI: https://doi.org/10.1051/jp1:1995212