RT Journal Article T1 Microscopic theory of the Aharonov-Bohm effect A1 Santos, E. A1 Gonzalo Fonrodona, Isabel AB A fully quantum theory of the Aharonov-Bohm effect is presented. It is based on the interaction, mediated by virtual photon exchange, between the traveling electron and the atomic magnetic dipoles of an infinitely long permanent magnet. The calculation involves second-order time-dependent perturbation theory. As expected, the relative phase between the two states -corresponding to the two alternative paths- interfering on the screen agrees with that predicted in the usual theory. However our method may allow to get corrections, for instance due to the size and shape of the electron wave packet, the possible soft-photon emission or the excitation of the atoms in the magnet. PB European Physical Society SN 0295-5075 YR 1999 FD 1999-02-15 LK https://hdl.handle.net/20.500.14352/59535 UL https://hdl.handle.net/20.500.14352/59535 LA eng NO © EDP Sciences. We acknowledge financial support of DGICYT Project No. PB-95-0594 (Spain). We are very grateful to T. W. Marshall and J. L. Sánchez-Gómez for useful comments. NO Ministerio de Economía y Competitividad (MINECO), España DS Docta Complutense RD 11 abr 2025