(adsbygoogle = window.adsbygoogle || []).push({}); Some my puzzles of “coincidence counting”

When I read literatures concerning with two-photon interference experiment, the “two-photon interference patterns” are always got by means of so called” coincidence counting”. My questions are: What is the coincidence counting? What the essential is the coincidence counting? How does the coincidence counting circuits works?

I hope anybody help me.

Thank you very much!

:zzz: :zzz:

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# Some my puzzles of coincidence counting

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