  The Aharonov-Bohm (A-B) effect showed that the phase of electron wave pattern
could be changed by the excluded electromagnetic field, the region where
electromagnetic field is zero. This apparent non-local effect has been
explained by mainly two salient interpretations called "the interpretation of
electromagnetic potentials" and "the interpretation of interaction energy". In
this paper the author reviews and investigates both the interpretations and
analysis their differences. Then the author clarifies in details and extend the
approach of interaction energy interpretation and argue that as quantum
mechanics involved energy of quantum systems and electromagnetic energy
contained in electromagnetic field, the natural and more physically acceptable
interpretation of the effect should be "the interpretation of interaction
energy".
