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Persistent currents in mesoscopic Hubbard rings with spin-orbit interaction

1993; American Physical Society; Volume: 48; Issue: 23 Linguagem: Inglês

10.1103/physrevb.48.17406

1095-3795

Satoshi Fujimoto, Norio Kawakami,

Cold Atom Physics and Bose-Einstein Condensates

The effect of spin-orbit interaction on persistent currents in mesoscopic Hubbard rings threaded by an Aharonov-Bohm flux is investigated, with attention focused on orbital magnetism. The nonperturbative treatment of the spin-orbit interaction developed by Meir et al. is combined with the Bethe ansatz solution in order to deal with this problem exactly. We find that the interplay of spin-orbit interaction and electron-electron interaction plays a crucial role, bringing about some remarkable effects on orbital magnetism.