- #1
Phillane
- 3
- 0
Hello,
Disclaimer:
I have read other posts and understand it is important to reference ‘sources’ and that popular science articles / videos can be a source of annoyance. However, I am struggling to:
A. Find an answer to my question, and/or
B. Understand if my question is even valid.
I hope someone can either provide and answer or point me in the right direction.
I recently watch on YouTube a video regarding the Delayed Choice Quantum Eraser experiment presented by PBS Space Time. The video was not particularly long so I expect excluded a lot of technical detail.
The video seemed to infer that despite the detetection of which slit the photon went through (via the 2nd entangled photon hitting the detector) occurring after the first entangled proton is detected, the absence of an interference patterned still ocrrued, and that therefore the ‘late’ detection somehow retroactively affected the first entangle proton or sent information into the past. (Those were the terms used in the video).
I suspect there are multiple theories for this and the presentation was made in a way to be more ‘weird’ than is actually the case.
My question is however (and i can't find any answer to this) , the video and explanation were presented from the basis as us as the observer and in our frame of reference, with one event occurring after the other. As photons travel at the speed of light, is the concept of time in this scenario irrelevant. From the point of view of the entangled photons would the detection of 2nd photon (and collapse of quantum wave) and detection of 1st photon happen at the same time? And so therefore this is no retroactive action or information into the past.?
If this question is garbage - tell me to move on :)
Many thanks
Phil
Disclaimer:
I have read other posts and understand it is important to reference ‘sources’ and that popular science articles / videos can be a source of annoyance. However, I am struggling to:
A. Find an answer to my question, and/or
B. Understand if my question is even valid.
I hope someone can either provide and answer or point me in the right direction.
I recently watch on YouTube a video regarding the Delayed Choice Quantum Eraser experiment presented by PBS Space Time. The video was not particularly long so I expect excluded a lot of technical detail.
The video seemed to infer that despite the detetection of which slit the photon went through (via the 2nd entangled photon hitting the detector) occurring after the first entangled proton is detected, the absence of an interference patterned still ocrrued, and that therefore the ‘late’ detection somehow retroactively affected the first entangle proton or sent information into the past. (Those were the terms used in the video).
I suspect there are multiple theories for this and the presentation was made in a way to be more ‘weird’ than is actually the case.
My question is however (and i can't find any answer to this) , the video and explanation were presented from the basis as us as the observer and in our frame of reference, with one event occurring after the other. As photons travel at the speed of light, is the concept of time in this scenario irrelevant. From the point of view of the entangled photons would the detection of 2nd photon (and collapse of quantum wave) and detection of 1st photon happen at the same time? And so therefore this is no retroactive action or information into the past.?
If this question is garbage - tell me to move on :)
Many thanks
Phil