Backscattering of photons in dim = 1

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Discussion Overview

The discussion revolves around the backscattering of photons in the context of the Young's slits experiment, specifically focusing on the interaction between photons and electrons and the associated probabilities of detection. The scope includes theoretical aspects of quantum mechanics and the implications of which-path information.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant describes a scenario where photons emitted from a source interact with an electron passing through one of two slits, raising questions about the probabilities of photon detection at different locations.
  • Another participant suggests that the situation may relate to Compton scattering, although they express uncertainty about the applicability of this concept to the question of probabilities and the directional outcomes of scattering.
  • A later reply reiterates the Compton scattering reference, emphasizing that in a one-dimensional scenario, the photon can scatter to the left or right, indicating two possible probabilities.
  • One participant clarifies their interest in the context of which-path information, detailing the setup with slits at specific positions and the measurement amplitudes associated with photon detection at certain points, seeking to understand how these amplitudes depend on photon energy.

Areas of Agreement / Disagreement

Participants express uncertainty about the initial question and its relation to established concepts like Compton scattering. There is no consensus on the interpretation of the probabilities or the specific formulas sought.

Contextual Notes

Participants note the dependence on the definitions of scattering and measurement amplitudes, as well as the unresolved nature of the mathematical relationships involved in the scenario presented.

Heidi
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TL;DR
what is the probability thar a photon emitted to the right on an axis interacts with an electron and then comes back to the left?
Hi PF
i am reading a book written by L Tarassov about the Young slits experiment
there is a source of photons in the middle behind the slits. when the electron passes thru one slit the photon is detected by a camera near this slit or another near the other slit.
there is a probablité thar the photon emitted by the source interact with the electron and hit the camera near it but it can also hit it and goback in the other direction.
I am looking for the formulas giving these probabilities (they depend on the frequency of the photon).
thanks.
 
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I'm not sure I understand the question. It sounds like compton scattering, but that doesn't give you probabilities and it doesn't only give you forward and backward as a result.
 
bobob said:
I'm not sure I understand the question. It sounds like compton scattering, but that doesn't give you probabilities and it doesn't only give you forward and backward as a result.
As we have dim =1 after scattering the photon can go to the left or to the right (two probabilities).
 
I explain the reason of my question. I am reading a book in which the author
is talking about which path information.
We have two slits (or two holes) situated a +1 and -1 on the x axis. An electron can pass thru these holes. At x = 0 we have source of photons that will interact with the electron passing in 1 or -1 (compton effect). these photon will be detected at -2 or +2 later.
the author consider the amplitude phi1 and phi2 associated to its measurement at -2 or 2.
it is why i am looking for the value of phi1 and phi2 depending on its energy.
 

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