Análogo do efeito Aharonov-Bohm a partir da interação do momento de quadrupolo magnético de uma partícula neutra com campos externos

Abstract

We analyse the interaction of a neutral and spinless particle, which possesses a magnetic quadrupole moment, with external electromagnetic fields. We show that these interactions result in effective potentials, which are analogues to the Coulomb potential an the inverse square potential. We also investigate the effects of cylindrical cavities or cylindrical wires on these systems. Then, we investigate the effects of Aharonov-Bohm type geometric quantum phases on these systems. Finally, we also obtain the persistent currents that are associated with these geometric quantum phases. These studies were made through the analysis of the energy levels of the systems, by verifying how they are influenced by the effects mentioned above.