@urmo345 It's unclear in general what the universe allows/disallows when it comes to your question.
Even if one is to affect the present, the classical laws say that we should only be able to do so with objects/events that are nearby (within our "light cone" which means, shortly, within range or a light beam). So if like you say things change at the end of 3 we could make the distance in 3 huge and still defy classical laws and affect an event that we should not been able to.
I'm confused what qualifies as "observer participance". If the delayed choice experiment was set up - I turned it on, left the room and had my rabbit watch the results from the sensors, then I came back in the room, would there be a wave pattern or a particle pattern formed?
What if the sensors recorded the results of each photon path and put them up on a computer screen, but I didn't look at it as the experiment was running. Would there be a wave pattern formed?
I'm confused what qualifies as "observer participance". If the delayed choice experiment was set up - I turned it on, left the room and had my rabbit watch the results from the sensors, then I came back in the room, would there be a wave pattern or a particle pattern formed?
What if the sensors recorded the results of each photon path and put them up on a computer screen, but I didn't look at it as the experiment was running. Would there be a wave pattern formed?
I'm confused what qualifies as "observer participance". If the delayed choice experiment was set up - I turned it on, left the room and had my rabbit watch the results from the sensors, then I came back in the room, would there be a wave pattern or a particle pattern formed?
What if the sensors recorded the results of each photon path and put them up on a computer screen, but I didn't look at it as the experiment was running. Would there be a wave pattern formed?
@bobhwantstoknow I assume by "this" you mean the interference effect? Yes, it works with a beam of light (which really is just a large number of photons). BUT, one could then say that each photon is interfering with another photon, and not itself. And in the case of a beam of light, that happenes sometimes. The reason for using single photons is so that we can say for SURE that each particle is interfering with itself ant itself only; and that's where all the strange effects/physics come from.
Thanks for the reply. My question wasn't clear, so I'd like to ask again. Will a beam of light also loose the interference pattern when detectors are used, or will the different photons interfere with each other and still produce the pattern? BTW, I had posted a video in which I ask about a similar configuration of the experiment. Could you take a look and tell me what you think?
Ah, I understand. When using a beam and a detector, The photons will not interfere with themselves. But, the different photons will STILL interfere with each other. But, you will not see an interference pattern. Why? Because the photons will interfere with each other in a completely random way. So, the final result will be constructive/destructive/anything-in-between interference happening basically everywhere on the screen. The net result will be an uninteresting laser spot.
This has got to be the most baffling of all quantum paradoxes! And this is the only video on youtube i could find on it! Good work Trev, you explained it with clarity. This is a lot simpler than this other way of showing it I was reading about with different types of lenses etc.
@THEREALghostlaced Thanks! This vid is actually my fav, but most folks don't watch it because the first gives them a headache. Hope to post more soon...
can particles change their behavior ON THEY WAY to the end of 3 after passing 2 (the slit)? If they can then we do not affect past but very present.
urmo345 9 months ago
@urmo345 It's unclear in general what the universe allows/disallows when it comes to your question.
Even if one is to affect the present, the classical laws say that we should only be able to do so with objects/events that are nearby (within our "light cone" which means, shortly, within range or a light beam). So if like you say things change at the end of 3 we could make the distance in 3 huge and still defy classical laws and affect an event that we should not been able to.
TrevorGamble 9 months ago
This has been flagged as spam show
Great video. Thank you.
I'm confused what qualifies as "observer participance". If the delayed choice experiment was set up - I turned it on, left the room and had my rabbit watch the results from the sensors, then I came back in the room, would there be a wave pattern or a particle pattern formed?
What if the sensors recorded the results of each photon path and put them up on a computer screen, but I didn't look at it as the experiment was running. Would there be a wave pattern formed?
SuperRedViking 10 months ago
Great video. Thank you.
I'm confused what qualifies as "observer participance". If the delayed choice experiment was set up - I turned it on, left the room and had my rabbit watch the results from the sensors, then I came back in the room, would there be a wave pattern or a particle pattern formed?
What if the sensors recorded the results of each photon path and put them up on a computer screen, but I didn't look at it as the experiment was running. Would there be a wave pattern formed?
SuperRedViking 10 months ago
Great video. Thank you.
I'm confused what qualifies as "observer participance". If the delayed choice experiment was set up - I turned it on, left the room and had my rabbit watch the results from the sensors, then I came back in the room, would there be a wave pattern or a particle pattern formed?
What if the sensors recorded the results of each photon path and put them up on a computer screen, but I didn't look at it as the experiment was running. Would there be a wave pattern formed?
SuperRedViking 10 months ago
Will this also work with a beam of light, or only with discrete photons?
bobhwantstoknow 1 year ago
@bobhwantstoknow I assume by "this" you mean the interference effect? Yes, it works with a beam of light (which really is just a large number of photons). BUT, one could then say that each photon is interfering with another photon, and not itself. And in the case of a beam of light, that happenes sometimes. The reason for using single photons is so that we can say for SURE that each particle is interfering with itself ant itself only; and that's where all the strange effects/physics come from.
TrevorGamble 1 year ago
@TrevorGamble
Thanks for the reply. My question wasn't clear, so I'd like to ask again. Will a beam of light also loose the interference pattern when detectors are used, or will the different photons interfere with each other and still produce the pattern? BTW, I had posted a video in which I ask about a similar configuration of the experiment. Could you take a look and tell me what you think?
Thanks
bobhwantstoknow 1 year ago
@bobhwantstoknow
Ah, I understand. When using a beam and a detector, The photons will not interfere with themselves. But, the different photons will STILL interfere with each other. But, you will not see an interference pattern. Why? Because the photons will interfere with each other in a completely random way. So, the final result will be constructive/destructive/anything-in-between interference happening basically everywhere on the screen. The net result will be an uninteresting laser spot.
TrevorGamble 1 year ago
This has got to be the most baffling of all quantum paradoxes! And this is the only video on youtube i could find on it! Good work Trev, you explained it with clarity. This is a lot simpler than this other way of showing it I was reading about with different types of lenses etc.
THEREALghostlaced 1 year ago
@THEREALghostlaced Thanks! This vid is actually my fav, but most folks don't watch it because the first gives them a headache. Hope to post more soon...
TrevorGamble 1 year ago