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bio website marty-green.blogspot.com
location Canada
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visits member for 2 years, 11 months
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May
25
comment Does decoherence explain all instances of wave function collapse?
Are you people ever going to answer the question?
May
24
answered Bell Test statistics
May
23
comment Does decoherence explain all instances of wave function collapse?
@Peter I'm glad you found my blog, even though it's more just a collection of random articles than a blog. I hope you read my article on Quantum Siphoning: it's from March of 2010 and the link is marty-green.blogspot.com/2010/03/quantum-siphoning.html
May
23
comment Does decoherence explain all instances of wave function collapse?
@Peter One of the very best math puzzles ever starts of with Mr. S and Mr. P facing each other. S is thinking about the sum of two numbers between 1 and 100, and P is thinking about their product. Neither knows what the numbers are. Mr S begins: I don't know what your number is. P replies And I don't know what yours is. S replies: Now I know what your number is. And S concludes: And now I know yours. In that vein, Peter, I'm glad you think you know what I'm thinking; but I'd still like to know what you think I'm thinking.
May
23
comment Does decoherence explain all instances of wave function collapse?
@Peter I'm gratified that you're interested in how I would counter your argument, but at the same time I wish I knew how you think I'm looking at it. As far as I'm understanding, you're simply saying that decoherence doesn't explain it. That's hardly an argument, and as such, I don't know why you'd expect me to try and knock it down. Did you understand that I posted this question as a kind of "put up or shut up" challenge to people who said that decoherence explains everything?
May
23
comment Historical background of wave function collapse
@Alex If your English were not better than my Russian we wouldn't be having this discussion in the first place.
May
23
comment Historical background of wave function collapse
@Alex Could you give me a page number where the flecks are explained? I can't find it. As for examples not existing: I asked for examples of experiments that led people to formulate certain ideas. You may argue that the examples are discredited but that doesn't mean they don't exist. The paper you cite certainly does not make such a claim.
May
23
comment Does decoherence explain all instances of wave function collapse?
Over the last few days I have posted questions unsuccessfully trying to elicit examples of what is meant by collapse of the wave function. No one has volunteered any such examples; however, some people have said there is no such thing as collapse because decoherence explains everything. This brings us to the present question.
May
23
asked Does decoherence explain all instances of wave function collapse?
May
23
comment Historical background of wave function collapse
@Alex Thanks Alex for dealing with objections 1 and 4. Interesting paper. But re objection 2: these are not examples of wave function collapse: they are examples where collapse doesn't occur. They are nice examples but they're not what I asked for. I'm going to put up a new question where I ask for a specific mechanism to explain the flecks of silver on a photographic plate. I hope you'll check it out.
May
23
comment Historical background of wave function collapse
I don't mean to be difficult, but since you ask: 1. I don't have access to Annalen; 2. I asked for specific examples of wave function collapse and I can't see any in your answer; 3. your examples don't seem to fit the category of cases that led people to develop the concept; 4. I don't really understand the examples referred to in the paper. On the positive side, you do seem to be arguing in favor of time evolution vs collapse, but it's not helpful because you don't explain a specific mechanism in any case.
May
23
comment Historical background of wave function collapse
@Alex Before there was a wavefunction, there was the idea of the "Quantum Leap" which was a kind of precursor to the idea of wave function collapse. It applied to all kinds of things like the transition of an electron between energy levels in the hydrogen atom of the splitting of a beam of silver atoms into two paths in the Stern Gerlach experiment. These are not exactly "wave function collapse because there was no wave function back then. When Schroedinger invented the wave function these phenomena were instantly explainable as normal time evolution.
May
23
awarded  Supporter
May
23
answered Quantum mechanics of thermal radiation
May
22
comment Historical background of wave function collapse
@Jerry Your example is interesting but it is surely not one of the cases which led people to come up with the idea of wave function collapse in the first place.
May
22
comment Historical background of wave function collapse
@Marek I guess I should ask you to explain to Jerry how decoherence explains the quantum Zeno effect. Seriously, this is the kind of answer that frustrates me because it deals only in generalities, where I have asked for specific examples. If decoherence explains everything, then how does the energy of light from a distant star get concentrated enought to reduce an atom of metallic silver on a photographic plate?
May
22
awarded  Commentator
May
22
comment Historical background of wave function collapse
I'm sorry to say I don't find this answer helpful.
May
22
comment Historical background of wave function collapse
@Peter Morgan It's not that important to me which way you go with it, whether you collapse the wave function or you go with Many Worlds: the experiments we are trying to explain are still the same experiments. I could have just as well asked "what were the phenomena that led people to come up with Many Worlds, or the Born rule...they're still the same phenomena aren't they?
May
22
asked Historical background of wave function collapse