Matterwave's latest activity
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Matterwave reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
Because the branches are decohered, and because in the overall wave function you are entangled with the cat--and both you and the cat... -
Matterwave replied to the thread Undergrad Particle vs Wave Interpretations of QM.Yes, I realize that mathematically MWI is pure unitary evolution of a universal wave function via Schroedinger's equation...
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Matterwave reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
The answer is simple: "branching" is just unitary evolution, and unitary evolution can't create or destroy anything.
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Matterwave reacted to PeterDonis's post in the thread Undergrad "The wavefunction never collapses" with Like.
No, what I quoted from you assumes more than that. If you did not intend to claim this, then your post was extremely poorly worded...
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Matterwave replied to the thread Undergrad Particle vs Wave Interpretations of QM.Note that, at least to my knowledge, there is no claim that universes are created only that it branches in MWI. Why is branching...
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Matterwave reacted to PeterDonis's post in the thread Seeking clarity on the physical definition of an observer with Like.
If by "unitary evolution" you mean "exactly unitary evolution all the time, even during a measurement", then yes. But that qualifier is...
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Matterwave reacted to Demystifier's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
I agree. But don't miss the context in which I said what I said. My claim was that the Bohmian position of a microscopic particle is a...
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Matterwave reacted to renormalize's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
It's certainly likely that I am not understanding your point about "seeing" elementary particles. So let me instead clearly state my...
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Matterwave reacted to QuarkyMeson's post in the thread Seeking clarity on the physical definition of an observer with Like.
I agree more or less, but that was essentially my point. The proposed definition of observer is excessively broad. If an SR-observer is...
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Matterwave replied to the thread Undergrad Particle vs Wave Interpretations of QM.I should first make a few disclaimers 1. I am no expert on Bohmian mechanics. Indeed I have not read Bohm's book on the subject. My...
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Matterwave reacted to renormalize's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
Did you mean to say "a microscopic particle such as electron"? Even so, I don't understand your comment about only observing "an...
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Matterwave reacted to Roberto Pavani's post in the thread Undergrad Heat radiation in vacuum with Like.
Sure, but I mean on a clear windless night. Standing under a gazebo often feels warmer than standing under the open sky because the roof...
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Matterwave replied to the thread Undergrad Heat radiation in vacuum.Got it. From personal experience I would say the wind (convection) makes me feel colder and so I suspect it is more efficient at moving...
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Matterwave reacted to Roberto Pavani's post in the thread Undergrad Heat radiation in vacuum with Like.
I meant clear sky, not no wind. A clear sky is an efficient radiative heat sink. That's why sleeping under the stars is often colder...
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Matterwave replied to the thread Undergrad Heat radiation in vacuum.You mean by clear night, not windy? I think the wind bites hardest haha.