Coherent electrons in double slit experiment?

kof9595995
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Experimentally how do we make sure that the ejected electrons are coherent?
 
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kof9595995 said:
Experimentally how do we make sure that the ejected electrons are coherent?

I think it is mainly required for light beams.
 
Why? I don't think incoherent electrons can produce a interference pattern
 
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Hmm I was just thinking about this problem again, still confusing...
 

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