Abstract
Aharonov-Bohm (AB) cages are finite regions of a quantum network where single-particle eigenstates remain extremely localized for certain values of an applied magnetic field. Electron-electron interactions partially destroy the single-particle localization by the generation of extended many-particle states. We address the effects of on-site potentials on the AB localization phenomenon in a diamond-shaped quasi-one-dimensional bipartite chain, and show that field-induced AB cages can effectively persist in the presence of electron-electron interactions.
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