How Would Electron Entanglement Affect Photon Emission

Click For Summary

Discussion Overview

The discussion centers on the implications of electron entanglement on photon emission, specifically examining whether emitted photons would be entangled and how their polarization might be affected. The conversation touches on theoretical aspects of quantum mechanics, particularly regarding the nature of entanglement and the properties of photons and electrons.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants propose that photons emitted from spin-entangled electrons could be entangled with each other and with the electrons themselves, though uncertainty remains about the specifics of their polarization.
  • There is a question about why photons cannot be entangled via spin and whether discussing spin versus polarization entanglement is essentially the same, with one participant asserting that they are essentially the same due to photons being spin-1 particles.
  • Concerns are raised regarding the lack of detail in the proposed scenario, particularly about how the electrons absorb photons and the implications of their excited states on the resulting physics.

Areas of Agreement / Disagreement

Participants express differing views on the nature of entanglement between photons and electrons, and the discussion remains unresolved regarding the specifics of how entanglement would manifest in the emitted photons.

Contextual Notes

Limitations include the unspecified details of the absorption process and the intermediate states of the electrons, which may significantly influence the outcome of the entanglement and polarization of the emitted photons.

Strange_matter
Messages
27
Reaction score
0
Suppose you have a pair of electrons in the same quantum state, and are thus spin entangled, and they absorb a pair of photons and release them at the same time. How would this affect the photons? Would the photons be entangled? Would it affect the photon spin, and if so, how would it affect the photon polarization? On a related note, why can't photons be entangled via spin, but rather polarization, or is saying they are spin- or polarization-entangled, essentially the same?
 
Physics news on Phys.org
Strange_matter said:
...why can't photons be entangled via spin, but rather polarization, or is saying they are spin- or polarization-entangled, essentially the same?

Essentially the same. Photons are spin-1 particles.
 
Would being emitted from spin entangled electrons affect their spin? Would the photons be polarization-entangled?
 
Strange_matter said:
Suppose you have a pair of electrons in the same quantum state, and are thus spin entangled, and they absorb a pair of photons and release them at the same time. How would this affect the photons? Would the photons be entangled?

I think the resulting photons would be entangled with each other and also with the two electrons. Not sure about polarization.
 
You need to give far more detail on the scenario you've proposed. All you said is:
Strange_matter said:
Suppose you have a pair of electrons in the same quantum state, and are thus spin entangled, and they absorb a pair of photons and release them at the same time
How do they absorb them? You've only specified their initial state, but by absorbing two photons they've presumably gone to some excited state(s) and back. The resulting physics depends very strongly on how the photons couple to this entangled state and what their intermediate state (and its coupling to the photon) is.
 
  • Like
Likes   Reactions: Nugatory

Similar threads

  • · Replies 58 ·
2
Replies
58
Views
5K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 41 ·
2
Replies
41
Views
7K
Replies
11
Views
3K
  • · Replies 23 ·
Replies
23
Views
4K
  • · Replies 61 ·
3
Replies
61
Views
5K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 3 ·
Replies
3
Views
1K