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According to the Copenhagen interpretation, physical systems generally do not have definite properties prior to being measured,
and quantum mechanics can only predict the probabilities that measurements will produce certain results.
The act of measurement affects the system,
causing the set of probabilities to reduce to only one of the possible values immediately after the measurement. This feature is known as wavefunction collapse.
No. What happened is what you measured. Waveform collapse is a mathematical model of what happens.
Quote from: alancalverdNo. What happened is what you measured. Waveform collapse is a mathematical model of what happens.Hmmm. The wave function is generally a superposition of several eigenfunctions. Upon taking a measurement the wavefunction is a single eigenfunctions.
Hmmm. The wave function is generally a superposition of several eigenfunctions. Upon taking a measurement the wavefunction is a single eigenfunctions.
Aether? No. However, if you have quoted Bell correctly then that is of interest. Where did that quote come from? This then relates to the de broglie-Bohm theory. Which by the way Einstein disagreed with. This theory is deterministic and non-local. I haven't studied this enough to make any determination of how valid it may be.
Not surprisingly the double slit experiment finds its way into almost any discussion of wave/particle duality. The part that seems often to be overlooked is the question: Should we consider this duality to imply wave or particle, wave and particle or neither wave nor particle?I’m going to opt for the third.
liquidspacetime I have simply ignored your last two posts as this thread has nothing to do with Aether. It was simply stated and had two choices. An Aether has nothing to do with the initial poll. It clouds the issue. The de Broglie-Bohm theory that you referred me to indirectly is pertinent.
As far as I can tell Bohm modified the original theory. Hence de Broglie-Bohm theory.
Puppypower, the “motion” in your picture has nothing to do with change continuing when time is stopped. Taking the picture stops both change and time. The motion you see is simply the result of your brain’s interpretation of the scene.
The "how' in terms of the observed behaviors in a double slit experiment is that the particle traveled through a single slit and the associated wave in the dark matter passed through both. If you strongly detect the particle it destroys the cohesion between the particle and its associated wave in the dark matter and the particle no longer creates an interference pattern.
But you detect the particle after it has gone through the slit, so the act of measurement cannot determine which slit it will go through.
No one is saying anything about having to predict the future. This is about understanding the particle always travels through a single slit in a double slit experiment and it is the associated wave in the dark matter which passes through both.
You are now saying that observing the particle affects the wave, but you began by asserting that the wave precedes and determines the position of the particle (that's why you called it a pilot wave). You can't have it both ways.
When you strongly detect the particle you destroy the coherence between the particle and its associated wave.
You said that before, but it is a circular argument. Either the pilot wave determnes where the particle will be, in which case detecting the particle cannot alter anything, or it isn't a pilot wave. Just calling it "coherence" doesn't change the fact that you are hypothesising a cause (wave) and effect (position of particle), and in this universe, causes precede effects.
If you place a bunch of pilings in front of a boat in order to detect it, while it is getting knocked around by the pilings it's not going to be in sync with its bow wave.
3 We see wave on screen because ( WAVE IS FASTER )
The following image shows the interference pattern build up over time for electons.
I see that yet again we are moving away from reasonable debate and learning opportunities.
I had read that in various texts but I wanted to get my ducks in order before proceeding. This then means that the interference is not dependent upon more than 1 particle being present at the same time. It will 'interfere' with itself. Does this mean that it does in fact pass through both slits? It would appear so. The 'pilot wave' approach appears seductive. It looks like it can explain the effect. However this should indicate that a particle is an expanding sphere that will ultimately expand to infinity. If we were to construct a spherical style multiple slit experiment would we see a 3 dimensional interference pattern? It may be that this pattern may likely mimic the profile of the magnetic field. If it does then the magnetic field may play the role of the wave. If this experiment is not done then no one will know. This should dispel the idea of an ongoing spherical expansion of the wave.
Quote from: liquidspacetime on 08/11/2015 00:07:37If you place a bunch of pilings in front of a boat in order to detect it, while it is getting knocked around by the pilings it's not going to be in sync with its bow wave.It's a bad analogy. 1. The reason a boat has a bow wave is because it is moving through an effectively incompressible medium. Photon or electron diffraction occurs in the absence of a medium (double slit in vacuo) or a dense medium (x-ray and electron diffraction in crystals).2. The bow wave moves ahead of the boat but doesn't determine the path of the boat. 3. You can see the diffraction of a bow wave as a boat approaches a row of stanchions or a harbor entrance, but the boat doesn't diffract!
So you say the wave is in the dark matter. If the dark matter is composed of WIMPS and said WIMPS are black holes that have evaporated until the size of the Planck mass. So in effect you are saying the universe if full of these micro black holes and they are all waving about. I would like to find the force that would make a sea of micro black holes wave around. It must be enormous in magnitude. That is just one of the things that dark matter could be. You need a rethink.
The most important question is why would dark matter be needed to explain particle wave like nature in the first place?
The particle travels through a single slit and the associated wave passes through both.