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The fact that I don't have a physics degree is actually an advantage in some part, because I'm not held back by paradigm bias.
The delayed choice quantum eraser, allows the decision whether to measure or destroy the "which path" information to be delayed until after the entangled particle partner (the one going through the slits) has either interfered with itself or not. Doing so appears to have the bizarre effect of causing the outcome of an event after the event has already occurred. In other words, something that happens at time t apparently reaches back to some time t - 1 and acts as a determining causal factor at that earlier time.
However, the interference pattern can only be seen retroactively once the idler photons have already been detected and the experimenter has obtained information about them, with the interference pattern being seen when the experimenter looks at particular subsets of signal photons that were matched with idlers that went to particular detectors.
so I would think something as radical as an electron would, could and should interfere with itself, and it is not in multiple places at the same time, but rather moving in many places at an unimaginable speed trying to find somewhere it will be stable, and balanced...
The act of measuring a particle with a photon imparts the photon with the particles information which comes back to the measuring device and is then transferred onto electrons which move through the device and allow an image to appear on the screen
The delayed choice quantum eraser, allows the decision whether to measure or destroy the "which path" information to be delayed until after the entangled particle partner (the one going through the slits) has either interfered with itself or not. Doing so appears to have the bizarre effect of causing the outcome of an event after the event has already occurred. In other words, something that happens at time t apparently reaches back to some time t - 1 and acts as a determining causal factor at that earlier time.
-So when they don't measure there is an interference pattern.
-When they do measure the interference pattern collapses.
-When they measure but immediately erase the info, the interference pattern is restored.
This proves that the physical act of measuring, the Observer Effect, is not responsible for collapsing the interference pattern.
The measuring device has interacted with the particle, yet the interference pattern remains if the info is erased.
The conclusion is again inescapable, the availability of the info is what collapses the pattern, or not.
I see no other reason for that besides it having a direct relation with the consciousness of the experimenter. Why else would it matter if the info is available?
It is not impossible at all. In the quantum world, causality can be violated.
Originally posted by RandomEsotericScreenname
reply to post by masterp
You haven't got a clue have you. The wich path info is erased AFTER the particles have already hit the screen when the wich path info was still available.
Then the info is erased, but the pattern associated with the info being known should be on the screen, because it is erased afterward.
Yet when the experimenter looks, it shows an interference pattern. This is impossible.
Originally posted by RandomEsotericScreenname
reply to post by masterp
Sidestepping, again, answer my above post.
because consciousness actually does not exist
Originally posted by RandomEsotericScreenname
reply to post by masterp
Correct, and the only possible explanation is consciousness. Why else would a past outcome change in the present to "coincidentily" fit what the experimenter knows at that present time, when it should not at all?edit on 25-4-2012 by RandomEsotericScreenname because: (no reason given)
Originally posted by RandomEsotericScreenname
reply to post by masterp
I reached a conclusion by applying the not only logical, but ONLY explanation there is.
I'm sorry it is in conflict with what you have always thought.
Like I said, you have made at least two posts that show that you don't actually comprehend the results of these experiments.
edit on 25-4-2012 by RandomEsotericScreenname because: (no reason given)
There is nothing in the experiment's description that links its outcome to the presence of conscious entities.
This is absolutely amazing imo. The fact that erasing the information after the experiment can change something which happened in the past is mind blowing. I mean how far can this concept be extended. What if the information was kept for years and then deleted? Would the experiment be able to "know" the information was going to be deleted? If so, that has some staggering implications. I need to think harder about this and get back to this thread with some of my thoughts. This is astonishing. Thanks for sharing.
This delayed choice quantum eraser experiment raises questions about time, time sequences, and thereby brings our usual ideas of time and causal sequence into question. If a determining factor in the complicated (lower) part of the apparatus determines an outcome in the simple part of the apparatus that consists of only a lens and a detection screen, then effect seems to precede cause. So if the light paths involved in the complicated part of the apparatus were greatly extended in order that, e.g., a year might go by before a photon showed up at D1, D2, D3, or D4, then when a photon showed up in one of these detectors it would cause the photon in the upper, simple part of the apparatus to have shown up in a certain mode a year earlier. Perhaps by re-routing light paths to the four detectors during that one year so that the number of possible outcomes is reduced to two or even perhaps to one, then the experimenter could send a signal back through time. Changing between the first possible arrangement and second possible arrangement of parts in the complicated part of the experiment would then function like the opening and closing of a telegraph key. An objection that seems fatal is soon raised: The photons that show up in D1 through D4 do not follow some regular rotation. Therefore the photons that show up in D0 pile onto the same detection screen in random order. There is no way to tell, by simply looking at the time and place of each photon detected using D0, which of the other four detectors it corresponds to. So the result will be like trying to watch a motion picture screen on which four projectors are focused. The whole screen will be awash with light. In order to segregate the photons arriving at D0 into the ones that will form one or the other of two overlapping fringe patterns and also the two diffraction patterns, it will be necessary to know how to collect them into four sets. But to do that it is necessary to get messages from the second part of the experiment about which detector was involved with the detection of the entangled partner of each photon received at D0. To oversimplify a bit, the data collected at D0 would be like an encrypted message. However, it could only be decrypted when the key to the code was delivered by a message that could travel at no faster than the speed of light. This daunting obstacle to sending messages back in time has not, however, stopped all researchers from trying to find some way of getting around the stumbling block.
Correct, and the only possible explanation is consciousness. Why else would a past outcome change in the present to "coincidentily" fit what the experimenter knows at that present time, when it should not at all?
Also, you are still to explain how the act of erasing makes the pattern change from your understanding. Just saying it does is not science, and not helpfull.
Originally posted by ChaoticOrder
reply to post by masterp
Ok, think about this for a moment. What if the information were locked away forever, and no one ever observed it - that is the same as if the information was deleted because no one gets to observe it. According to this experiment, there would be an interference pattern if that were the case.
Originally posted by ChaoticOrder However, if the information is actually observed, the interference pattern disappears.
Originally posted by ChaoticOrder So now explain how the mere act of observing the data AFTER the experiment is finished can logically change anything unless that act of observation is directly linked to the outcome of the experiment.
Originally posted by ChaoticOrderEven when that data is locked away and never observed, there is an interference pattern... so what does observing that information have to do with anything unless the observer plays a crucial role? The ONLY logical conclusion is that when the information is known by a conscious observer, it changes the behavior of the quantum world. There is no way around it, and if you believe there is a way around it I would like you to explain your theory in full detail.
Originally posted by RandomEsotericScreenname
reply to post by masterp
Just answer the question.
Correct, and the only possible explanation is consciousness. Why else would a past outcome change in the present to "coincidentily" fit what the experimenter knows at that present time, when it should not at all?
Answer the question.
Why else would a past outcome change in the present to "coincidentily" fit what the experimenter knows at that present time, when it should not at all?
The answer is: the act of erasing the which-path info changes the timeline.
Why else would a past outcome change in the present to "coincidentily" fit what the experimenter knows at that present time, when it should not at all?
Originally posted by Shadow Herder
If you can demonstrate ESp abilities to the Great James Randi he will give you a million bucks, Show him the proof and collect your bux,
Originally posted by RandomEsotericScreenname
The answer is: the act of erasing the which-path info changes the timeline.
No it doesn't. You have no clue on how this experiment works. The "erasing" has no extra interaction with, the particle, compared to the detection, nothing changes in the process, the only thing that changes is the avialability of the info.
Originally posted by RandomEsotericScreennameAnd you didn't answer the question, how does the erasing actually affect the process, or the timeline.
Originally posted by RandomEsotericScreennameDidn't answer the first question either,
Why else would a past outcome change in the present to "coincidentily" fit what the experimenter knows at that present time, when it should not at all?