h********y
发帖数: 2 | 1
the motivation of Aharonov-Bohm experiment:
In classical electrodynamics, the field strengths E and B are regarded
as the
basic physical quantities and the potential A^\mu=(V;A) is introduced
as a
convenient calculational device. Because of the gauge ambiguity of
electrodynamics, the potential corresponding to a given configuration
of the
fields is not uniquely defined. It may therefore appear that the
potential is
no more than an auxiliary mathematical quantity with no independent
physical
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