PeterDonis's latest activity
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PeterDonis reacted to A. Neumaier's post in the thread I Question about discussions around quantum interpretations with
Like.
My arguments are not specific to a particular setting. In an ion trap, one can prepare a single ion in an excited state and wait until... -
PeterDonis reacted to A. Neumaier's post in the thread I Question about discussions around quantum interpretations with Like.
This is simply wrong. A probe of a pure, weakly radioactive, crystalline substance consists in the traditional models of a huge number...
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PeterDonis replied to the thread I Energy*time uncertainty for particle decay.I'm not sure you can even do basic QM if you don't know at least some linear algebra.
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PeterDonis replied to the thread I Energy*time uncertainty for particle decay.That wouldn't make the question answerable. Also, a homework question is best posed based on an actual homework question, i.e...
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PeterDonis replied to the thread Help me understand why “Block Universe” is not scientifically proven.If you can find a published reference (textbook or peer-reviewed paper), we can discuss this in a new thread. I'm closing this thread...
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PeterDonis reacted to ojitojuntos's post in the thread Help me understand why “Block Universe” is not scientifically proven with Like.
Me again. Just felt like writing again to appreciate your patience, and to kind of explain where I was coming from after you've helped...
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PeterDonis replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.This has nothing to do with what the paper under discussion in this thread is proposing. Please don't clutter the thread with off topic...
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PeterDonis replied to the thread A Twistors and celestial holography.Oops, that's true. @Physics Detective sorry I got mixed up about that. But it's still true that this is an "A" level thread, so...
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The NG article is not worth reading. According to Introduction to Modern Cosmology by Liddle: The Big Bang model is reliable back to...
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PeterDonis replied to the thread A Twistors and celestial holography.You did mark this thread as "A" level. [Edit: sorry, I was mixed up about that, see later post.] That means it involves graduate level...
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PeterDonis replied to the thread I Is there a bad intuition or bad explanation in quantum entanglement?.I'm not sure I understand. The definition of an entangled state of a quantum system is simple: it's a state that can't be expressed as a...
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PeterDonis replied to the thread I Energy*time uncertainty for particle decay.But have you studied QM from an actual QM textbook? It doesn't seem like it; it seems like you've been trying to learn it from the same...
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PeterDonis reacted to PeroK's post in the thread I Energy*time uncertainty for particle decay with Like.
A lot of what passes for QM in non-specialist courses is a messy hybrid of QM and classical thinking, IMHO. If I could explain why...
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PeterDonis replied to the thread A Dirac's integral for the energy-momentum of the gravitational field.Schutz is taking a different viewpoint from the one I described in post #13. I really wish you'd actually read that post and respond to...
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PeterDonis replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.Personally I'm skeptical of Deur's claims, but his work doesn't look to me like handwaving.