Electrons interfere with eachother?

[dooces]

My apologies for what must be an ignorant question, but how do we know electrons can interfere with other electrons, and not ONLY themselves?

I have watched so many double-slit experiment videos / lectures / etc, which all go at length to prove that the electron interferes with itself, which explains the interference pattern, but then how is it proved that they interfere with each other (if they do)?

 

[PeroK]

My apologies for what must be an ignorant question, but how do we know electrons can interfere with other electrons, and not ONLY themselves?

I have watched so many double-slit experiment videos / lectures / etc, which all go at length to prove that the electron interferes with itself, which explains the interference pattern, but then how is it proved that they interfere with each other (if they do)?

If you have two electrons in a system, then you have a system of two identical particles. The electons no longer have individual wave functions. Instead, the system has a single wave function.

That system may exhibit quantum interference similar to interference for a single particle.