PeterDonis's latest activity
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PeterDonis reacted to JimWhoKnew's post in the thread I Energy*time uncertainty for particle decay with
Like.
Did you mean: ? (my favorite Griffiths quotation) -
PeterDonis replied to the thread I Energy*time uncertainty for particle decay.I note you say (classical). Those textbooks are not focused on QM; they might cover it, but they're not primarily QM textbooks. Which...
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PeterDonis replied to the thread I Question about discussions around quantum interpretations.After some cleanup, the thread is reopened.
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PeterDonis replied to the thread I Energy*time uncertainty for particle decay.There is no such thing. Energy and time are not complementary observables, so there is no uncertainty relation between them. Indeed...
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PeterDonis replied to the thread I Need Help on Particle Spin.Except those that don't, such as the Higgs. Unless you're counting spin zero as having "intrinsic spin/angular momentum". Why do you...
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PeterDonis replied to the thread I Is there a bad intuition or bad explanation in quantum entanglement?.So basically, on the "principle account" view, entanglement in QM is viewed as analogous to, say, relativity of simultaneity, length...
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PeterDonis reacted to RUTA's post in the thread I Is there a bad intuition or bad explanation in quantum entanglement? with Like.
Allori has a nice overview of different types of explanation used in quantum foundations here: https://www.mdpi.com/2624-960X/5/1/7...
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PeterDonis replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.You're welcome!
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PeterDonis reacted to timmdeeg's post in the thread I Gravitational self-interaction: another attempt to replace Dark Matter with Like.
Thank you for your helpful comments, as always.
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PeterDonis replied to the thread A Dirac's integral for the energy-momentum of the gravitational field.That's true, but it doesn't show that ##M^{\mu \nu}## itself is the intrinsically natural form of that tensor (i.e., the form that...
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PeterDonis replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.I'm not sure I said that. A sufficiently accurate numerical simulation (i.e., one that included all of the terms whose magnitude is...
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PeterDonis reacted to Dale's post in the thread Help me understand why “Block Universe” is not scientifically proven with Like.
The debates about probabilities in QM are far stronger than the debates about the block universe. However, I think that you miss the...
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PeterDonis replied to the thread I Commutation of operators for particle in a box.What does "derivable" mean? If you mean sometimes you can't derive its form from first principles, so what? That's true of lots of...
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PeterDonis reacted to Orodruin's post in the thread I Is Zero Curvature Space Equivalent to Flat Space in General Relativity? with Like.
I am sorry, it is impossible to deduce what you are trying to say here. If anything, this post made your argument murkier, not clearer.
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PeterDonis reacted to Orodruin's post in the thread I Is Zero Curvature Space Equivalent to Flat Space in General Relativity? with Like.
You have some serious misunderstandings about what a metric is. Please see Peter’s posts.