Recent content by PeterDonis
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Graduate How valid is the indivisible interpretation of quantum mechanics?
Pretty much every interpretation says it at least points to a solution of the measurement problem, and within the context of each interpretation, what it points to at least appears to make sense. So nobody will be able to give you what you're asking for here. The issue with all QM...- PeterDonis
- Post #23
- Forum: Quantum Interpretations and Foundations
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Graduate How valid is the indivisible interpretation of quantum mechanics?
Ah, ok. This references several papers by Jacob Barandes, whose work has been discussed in previous PF threads. This one is probably the best place to start: https://www.physicsforums.com/threads/a-new-realistic-stochastic-interpretation-of-quantum-mechanics.1060576/ As far as how "valid" this...- PeterDonis
- Post #5
- Forum: Quantum Interpretations and Foundations
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Graduate How valid is the indivisible interpretation of quantum mechanics?
Where? Please give a specific reference. "The indivisible interpretation" is not any recognized interpretation that I've heard of.- PeterDonis
- Post #3
- Forum: Quantum Interpretations and Foundations
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Graduate How valid is the indivisible interpretation of quantum mechanics?
Moderator's note: Thread moved to the QM interpretations subforum.- PeterDonis
- Post #2
- Forum: Quantum Interpretations and Foundations
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Graduate Consistent histories -- particle positions prior to measurement
Moderator's note: Thread moved to the QM interpretations subforum.- PeterDonis
- Post #2
- Forum: Quantum Interpretations and Foundations
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Undergrad What empirical observation supports the axiom of continuous spacetime?
The title question of the thread has been addressed and the thread is now closed. Thanks to all who participated.- PeterDonis
- Post #23
- Forum: Quantum Physics
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Undergrad What empirical observation supports the axiom of continuous spacetime?
This is not correct. I have already pointed out how your examples only show certain kinds of discreteness. None of those kinds are incompatible with cosmological observations. Dark energy and dark matter are not failures of GR. GR accommodates them just fine. Dark matter, if you want to call...- PeterDonis
- Post #21
- Forum: Quantum Physics
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Undergrad What empirical observation supports the axiom of continuous spacetime?
In the sense that physicists, particularly those working on quantum gravity, are considering models that do not treat spacetime as continuous (indeed some of them treat spacetime as not even fundamental, but emerging from something else), this is true, yes.- PeterDonis
- Post #17
- Forum: Quantum Physics
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High School Do Dark Energy and the Casimir effect indicate Exotic Matter could exist?
That potential, if you try to think of it as valid for all ##r## out to infinity, is an idealization and never actually happens, just as the ##1 / r## potential of Newtonian gravity, if you try to think of it as valid all the way down to ##r = 0##, is an idealization and never actually happens...- PeterDonis
- Post #9
- Forum: Special and General Relativity
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High School Question about entanglement and spacetime
Hi, and welcome to PF! It would help if you could give some specific references to where you have read this. However, I suspect what you are referring to is descriptions of experiments on pairs of entangled particles in which measurements are made on the particles at spacelike separated...- PeterDonis
- Post #4
- Forum: Quantum Physics
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Undergrad What empirical observation supports the axiom of continuous spacetime?
Discreteness of what, though? Let's take the cases you give: Even leaving aside that there are arguments in the literature against the claim that the photoelectric effect shows that light comes in discrete quanta (the same predictions can be obtained from a model in which light is continuous...- PeterDonis
- Post #12
- Forum: Quantum Physics
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High School Do Dark Energy and the Casimir effect indicate Exotic Matter could exist?
All this depends on where you set the "zero point" of energy--and you've implicitly made different choices for the two cases you describe. For potentials like the harmonic oscillator, you're implicitly setting ##E = 0## at ##r = 0##. But for potentials like Newtonian gravity, you're implicitly...- PeterDonis
- Post #6
- Forum: Special and General Relativity
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High School Can a black hole become a white hole?
And with that, this thread is closed. Thanks to all who provided good responses.- PeterDonis
- Post #8
- Forum: Cosmology
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High School Can a black hole become a white hole?
And when the universe was in this state, it was also expanding very, very rapidly. It was nothing like a black hole or a white hole. All of this is personal speculation and is off limits here. Please be advised.- PeterDonis
- Post #7
- Forum: Cosmology
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High School Can a black hole become a white hole?
We have a theoretical model of white holes. That model is what @Ibix's post was describing. Please be aware that personal speculation is off limits for discussion here. Your statements here do not appear to have any basis in our actual scientific theories. There is no such thing as "proof" in...- PeterDonis
- Post #6
- Forum: Cosmology