※ 引述《Roshiel (123)》之銘言：
: http://www.hqrd.hitachi.co.jp/em/doubleslit.html
Interference fringes are produced only when two electrons pass through
both sides of the electron biprism simultaneously.
If there were two electrons in the microscope at the same time, s
uch interference might happen. But this cannot occur,
because there is no more than one electron in the microscope at one time,
since only 10 electrons are emitted per second.
We have reached a mysterious conclusion.
Although electrons were sent one by one,
interference fringes could be observed. These interference
fringes are formed only when electron waves pass through
on both sides of the electron biprism at the same
time but nothing other than this.
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