PeterDonis's latest activity
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PeterDonis replied to the thread Seeking clarity on the physical definition of an observer.If by "unitary evolution" you mean "exactly unitary evolution all the time, even during a measurement", then yes. But that qualifier is... -
PeterDonis reacted to gentzen's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
131. Quantum Theory and Determinism PDF L. Vaidman, Quantum Stud.: Math. Found. 1, 5-38 (2014)1405.4222 The relevant part is... -
PeterDonis reacted to gentzen's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
My personal opinion is that Tumulka's claim is a mistake. Even so it remains unclear what Tumulka actually wants to claim, I see no way...
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PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.I didn't say it was. What I said is that it shows the location of the particle's impact, to within the finite resolution of the pixel...
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PeterDonis replied to the thread Undergrad "The wavefunction never collapses".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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PeterDonis replied to the thread Seeking clarity on the physical definition of an observer.This is true in the MWI, but it is not true in some other QM interpretations.
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PeterDonis replied to the thread Undergrad "The wavefunction never collapses".To repeat something that I believe was said much earlier in this thread, this is true in the MWI, but it is not true in some other QM...
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PeterDonis reacted to Matterwave's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
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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PeterDonis 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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PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.Not necessarily. A spot on a detector screen showing the location of a particle impact, while it does have a finite size, is not...
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PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.I don't know what you mean by this. In order to measure any quantum system, we have to have some knowledge of what it's doing. I don't...
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PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.It isn't? Don't we make measurements all the time that work basically the way you describe? If you qualify this as "trajectories of...
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PeterDonis replied to the thread Graduate Does the PBR theorem rule out consistent histories?.Not quite. The paper says that consistent histories violates some of the assumptions that underlie the PBR theorem, so the theorem can't...
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PeterDonis reacted to Demystifier's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
Bohmian mechanics (BM) is a hidden variable theory in the following senses: (1) It claims that something observable (the particle...
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PeterDonis replied to the thread Graduate How valid is the indivisible interpretation of quantum mechanics?.But this throws away relativity, since the QFT Schrodinger equation forces you to pick a particular frame, which makes your definition...