Double slit experiment combined with Stern-Gerlach

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SUMMARY

The discussion centers on the interaction between the double slit experiment and the Stern-Gerlach experiment using electrons. It concludes that when a Stern-Gerlach apparatus is placed after the double slit, the interference pattern is preserved, but it is separated into two distinct rows based on the electron's spin. The outcome is influenced by factors such as the orientation of the Stern-Gerlach device relative to the slits and the separation distance compared to the fringe size.

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  • Understanding of quantum mechanics principles
  • Familiarity with the double slit experiment
  • Knowledge of the Stern-Gerlach experiment
  • Concept of electron spin and its measurement
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TL;DR
Would you still see an interference pattern if electrons were put through a Stern-Gerlach device after the double slit?
A bit of background: I've read Derive the probability of spin at arbitrary angle is cos( ) | Physics Forums post in this forum and went into a "thought rabbit hole". It didn't make any sense to me and I think I made a wrong assumption somewhere along the way. Instead of typing everything out, I thought it would be helpful to split my assumptions in several different posts.

In a double slit experiment with electrons you'll see an interference pattern (with enough electrons fired). Suppose after the double slit you put a Stern-Gerlach type experiment. Would you still see an interference pattern, but it separated into two rows depending on the spin or is the interference pattern lost?
 
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The exact result depends on the details of the experiment, like the relative orientation of the SG with respect to the slit, the SG separation compared to the size of the fringes, etc., but yes, the SG spots would each show an interference pattern.
 

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