PeterDonis's latest activity
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PeterDonis replied to the thread Graduate Is the deformation in Eq. 56 really innocuous?.I don't think it's intended to be. I think, as @Matterwave has said, that it's intended to capture varying the relative angles of the... -
PeterDonis reacted to Matterwave's post in the thread Graduate Is the deformation in Eq. 56 really innocuous? with
Like.
I guess I don't understand your concern because to me, the whole point of changing detector settings is to change the (quantum)... -
PeterDonis reacted to Matterwave's post in the thread Graduate Is the deformation in Eq. 56 really innocuous? with Like.
I have not read through the entire paper and just glanced around the relevant sections so take this with a grain of salt. My...
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PeterDonis replied to the thread Graduate Measurement and expectation value.It does if the state in between is not an eigenstate of the Hamiltonian. Then the state will change by time evolution in between the...
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PeterDonis reacted to Matterwave's post in the thread Graduate Measurement and expectation value with Like.
2 points. 1. You have to consider my answer in light of my longer explanation above. 2. That's not what the Ehrenfest theorem says...
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PeterDonis replied to the thread Undergrad Radiation in classical and quantum mechanics.There is no "classical reason" vs. "quantum reason". You are confusing models with reality. Reality is just radiation. The classical...
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PeterDonis reacted to Dale's post in the thread Undergrad Radiation in classical and quantum mechanics with Like.
Which is why the classical view is wrong.
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PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.Fair enough.
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PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.But classical optics does not apply to electrons. It only applies to light.
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PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.Except where it doesn't, as I said in post #22. And in addition to that, there's this: This is simply false for QM, so I don't know why...
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PeterDonis reacted to James_Sheils's post in the thread Graduate A night with the stars (Brian Cox on telly) with Like.
Hello, I am the author of the review "Double Twit Experiment – What Brian Cox Gets Wrong", as linked by others. I came across this...
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PeterDonis reacted to Matterwave's post in the thread Graduate Position vs momentum measurement with Like.
If you are asking from a purely theoretical view, you should be able to make your question much more precise. For example, what state...
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PeterDonis reacted to Matterwave's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
I don't view it that way. Energy as a concept is quite well defined and precise within each physical theory. Indeed that definition...
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PeterDonis reacted to Morbert's post in the thread Undergrad Particle vs Wave Interpretations of QM with Like.
Disabusing people of notions like everything is made of energy is well within the wheelhouse of physicists.
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PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.What does this even mean? It looks like personal speculation, which is off limits here. Please don't clutter the thread.