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originally posted by: ImaFungi
originally posted by: mbkennel
Explaining it as saying "the particle took both paths" is the problem: it's the wavefunction which takes all sorts of paths and occasionally behaves and instantiates as a particle.
But the 'wavefunction' is not a real thing.
Thinking the wavefunction is a real thing is like if you threw one dice in the air and once you let go no human touched the dice, and while it was in the air you said 'the probability of this dice landing on 1 is real, the probability of this dice landing on 2 is real, the probability of this dice landing on 3 is real, the probability of this dice landing on 4 is real, the probability of this dice landing on 5 is real, the probability of this dice landing on 6 is real, the probability it self 'exists!'.
originally posted by: HotMale
a reply to: TzarChasm
you asked for a clarification of "on and off". i dont know how to clarify further and it honestly strikes me as a ploy because who needs to clarify on and off??? wave form, particle form.
There is no random on and off.
It is off when we look, and on when we don't look. Observation is the only variable.
I'm suggesting no such thing I'm saying your not understanding the article. He didn't say observation causes the outcome in the past to change that is your interpretation.And he gave you two possibilities one being absurd that observation effects the past. Of course this is the one you choose.
Or he says that the particles act AZ waves.
"It proves that measurement is everything. At the quantum level, reality does not exist if you are not looking at it," said Associate Professor Andrew Truscott from the ANU Research School of Physics and Engineering.
If one chooses to believe that the atom really did take a particular path or paths then one has to accept that a future measurement is affecting the atom's past, said Truscott.
"The atoms did not travel from A to B. It was only when they were measured at the end of the journey that their wave-like or particle-like behaviour was brought into existence," he said.
So logic tells us that your wrong and if you read his article he's telling you yoir wrong you just don't understand the way science is taught. But don't believe me feel free to email him he will respond I get emails all the time on articles. Ask him if observation controls time.You really have no clue the havoc your interpretation would cause.
You mean something happens when there is a measurement apparatus with 10^23 particles interacting with something with typically 1 or 2 or 3 particles.
It's not like the human experience of looking with your eyeball which we all know does not have material influence on the world outside the eyeball.
You're gonna ask me?
I doubt very seriously that anyone can say what the mechanism is anyway. Murch just published this year. But I bet he has some ideas on it.
A second light grating to recombine the paths was randomly added, which led to constructive or destructive interference as if the atom had travelled both paths. When the second light grating was not added, no interference was observed as if the atom chose only one path. However, the random number determining whether the grating was added was only generated after the atom had passed through the crossroads.
originally posted by: HotMale
a reply to: Harte
You're gonna ask me?
Yes. We agree that there has to be a mechanism that allows for information to "travel" between two events seperated by time and space, or making it seem that it does so.
What could it be? It's almost like there is a factor that directly connects the two, but what could it be? Is there anything, I mean anything that comes into contact with both events and correlates them that we might be overlooking here............?
Hmm?
If one chooses to believe that the atom really did take a particular path or paths then one has to accept that a future measurement is affecting the atom's past, said Truscott.
"It proves that measurement is everything. At the quantum level, reality does not exist if you are not looking at it," said Associate Professor Andrew Truscott from the ANU Research School of Physics and Engineering.
There is no random on and off.
It is off when we look, and on when we don't look. Observation is the only variable.
It implies that reality is being governed by a program that makes sure that reality conforms to the observers observation.
Again, why are future measurements affecting past results?
You don't "measure" everything you see?
originally posted by: HotMale
a reply to: TzarChasm
please tell me you arent actually implying that pluto ceases to exist when we cease observing it.
I am implying it ceases to exist in the material form.
originally posted by: HotMale
Quantum eraser experiments have already proven that it is not the interaction of the particle with a measuring device that is causing the results, it is the availability of path info.
I, and this professor, am saying that the results can be viewed in only two ways, information travels back through time, or, reality manifests upon measurement.
We are both saying it is the latter.
originally posted by: HotMale
a reply to: mbkennel
You mean something happens when there is a measurement apparatus with 10^23 particles interacting with something with typically 1 or 2 or 3 particles.
So you are saying that that is the cause for all quantum weirdness? It's still a mystery noone can agree on, but it turns out it is just the apparatus and the set up of all those quantum experiments?
It's not like the human experience of looking with your eyeball which we all know does not have material influence on the world outside the eyeball.
Are you suggesting that therefore, these quantum experiments are inherently flawed and unreliable?
originally posted by: HotMale
a reply to: dragonridr
And to add,
A second light grating to recombine the paths was randomly added, which led to constructive or destructive interference as if the atom had travelled both paths. When the second light grating was not added, no interference was observed as if the atom chose only one path. However, the random number determining whether the grating was added was only generated after the atom had passed through the crossroads.
You are apparently not getting that the whole setup of the experiment can only garner a result that seems to violate the barriers of time.
Yes it creates a paradox. So how can you act like it is not a mystery?
originally posted by: HotMale
a reply to: Harte
You're gonna ask me?
Yes. We agree that there has to be a mechanism that allows for information to "travel" between two events seperated by time and space, or making it seem that it does so.
What could it be? It's almost like there is a factor that directly connects the two, but what could it be? Is there anything, I mean anything that comes into contact with both events and correlates them that we might be overlooking here............?
Hmm?
originally posted by: Harte
"We don't know," so - the Matrix.
It's a handy explanation, and it explains lots of other things we don't know - like women.
Or missing socks.
it is the statement made by Gell-Mann and not the one attributed incorrectly to Rees (see footnote 1), that represents the generally accepted view that all processes in the universe evolve in accordance with the laws of quantum mechanics without any need whatsoever of conscious observers. In cases where classical mechanics is adequate to explain the observations, it is regarded as an approximate theory.
John Bell, who is regarded as having made some of the most significant modern contributions to our understanding of quantum theory, remarked that
"I see no evidence that it is so [that the cosmos depends on our being here to observe the observables] in the success of contemporary quantum theory. So I think it is not right to tell the public that a central role for conscious mind is integrated into modern atomic physics. Or that ‘information’ is the real stuff of physical theory [5]
I think the experimental facts which are usually offered to show that we must bring the observer into quantum theory do not compel us to adopt that conclusion." [6]
For a long time I have argued along the same lines that I found recently in an article by A. Leggett [7], a Nobel prize winner who has given considerable thought to the quantum measurement paradox,
"...it may be somewhat dangerous to ‘explain’ something one does not understand very well [the quantum measurement process] by invoking something [consciousness] one does not understand at all!"
But instead of “it may be dangerous,”, I would say “it is nonsense.”
According to the description of some of the
founders of the quantum theory who are quoted in the next section, a meaningful
statement is that the reduction or collapse of a wavefunction occurs
after a recording has been made by an irreversible amplification of an atomic
event by a macroscopic detector, like a Geiger counter or a photographic
plate. The combination of eye lens, retina, optical nerve and neural memory
cells can be regarded as a detector for the special case of photons in a visible
frequency range, but such a detector is unique to a single observer.
But in the next sentence one finds that this “inevitable encounter” occurs
because von Neumann has treated a Geiger counter by a trivial wavefunction
consisting of the superposition of only two states: whether it is in a “fired” or
in an “unfired” state. This model of a Geiger counter, however, is incorrect,
because it does not describe the essential property of such a detector, which
is to be able to make a permanent record of an atomic event. Such a recording
requires an irreversible process.
originally posted by: TzarChasm
a reply to: ImaFungi
But that's not to say that reality is a direct product of cognition, correct?
I see. "We don't know," so - the Matrix. It's a handy explanation, and it explains lots of other things we don't know - like women. Or missing socks.