What Are the Best References for Delayed Eraser Experiments with Electrons?

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Discussion Overview

The discussion centers around the search for references related to delayed eraser experiments specifically involving electrons, contrasting with the more commonly studied photon-based experiments. Participants explore the feasibility and historical context of such experiments, as well as the challenges associated with using electrons in this context.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant inquires about the availability of references for delayed eraser experiments with electrons.
  • Another participant expresses skepticism about the existence of delayed quantum eraser experiments with electrons, noting that even ordinary quantum eraser experiments have not been conducted with them.
  • A participant questions the reasons behind the lack of electron-based experiments, suggesting that 'which-path' experiments have been performed with electrons, where photons are used to determine the path of electrons through slits.
  • It is noted that electrons are more challenging to work with than photons due to their charged nature, which leads to interactions with air molecules, requiring experiments to be conducted in a vacuum.
  • Participants discuss the limitations of manipulating electrons compared to photons, mentioning the difficulties in using mirrors, fiber optics, and beam splitters with electrons.
  • One participant mentions that searching for "quantum eraser electron" yields some relevant results but also many irrelevant ones.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the existence of delayed eraser experiments with electrons, with some expressing doubt about their feasibility and others questioning the reasons for the lack of such experiments.

Contextual Notes

The discussion highlights the technical challenges associated with conducting experiments with electrons, including the need for a vacuum environment and the limitations in manipulating electron paths compared to photons. There is also a noted distinction between theoretical discussions and actual physical experiments in the available literature.

jeremyfiennes
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TL;DR
References for delayed eraser experiments with electrons rather than photons?
Are there good references for delayed eraser experiments with electrons rather than photons?
 
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As far as I know even an ordinary quantum eraser experiment hasn't been done with electrons, let alone a delayed quantum eraser experiment.
 
Thanks. I find this hard to believe. Any reasons why? But I am right in thinking that 'which-path' experiments have been done with electrons? Firing photons at them as they pass the slits to determine which slit they went through. And then finding the interference screen pattern replaced by a clumped pattern?
 
jeremyfiennes said:
Any reasons why?
Electrons are much harder to work with than photons. They’re charged and interact readily with air molecules so can only be used in a vacuum. They can’t be reflected with mirrors, routed through fiber optic cables, or manipulated with beam splitters. Thus most experiments are done with photons unless there’s a specific reason to prefer using electrons.

However, googling for “quantum eraser electron” will bring up a few relevant results (and a bunch of false positives).
 
Thanks. I tried, but with spectacular lack of success. Many don't even distinguish between thought and actual physical experiments. Leave it for the moment.
 

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