pines-demon's latest activity
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Ppines-demon replied to the thread Undergrad Is GR superior to Newtonian gravity?.Ever heard of Newton-Cartan theory?
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Ppines-demon posted the thread Undergrad Nobel Prize in Physics 2026 predictions and results in Other Physics Topics.As in 2024 and 2025, here is the 2026 thread. As indicated by various sources it is getting increasingly difficult to predict the...
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Ppines-demon reacted to anuttarasammyak's post in the thread Graduate Best visualization of SO(3) with
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How about Bloch sphere for qubit? Perhaps you want more than that. -
Ppines-demon reacted to OmCheeto's post in the thread Famous people known for two totally unrelated accomplishments with
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And he was a world famous stamp collector. I'll have to go back and see if I have any stamps from Tannu Tuva in my collection. -
Ppines-demon replied to the thread Famous people known for two totally unrelated accomplishments.You mean the painter? https://www.openculture.com/2015/09/the-drawings-paintings-of-richard-feynman.html
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Ppines-demon replied to the thread Graduate How valid is the indivisible interpretation of quantum mechanics?.All efforts of Barandes are on the Born rule or as he calls it "deflating" wave mechanics, but for me this is not surprising in the...
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Ppines-demon reacted to anuttarasammyak's post in the thread Klein Paradox: Momentum in the Classically Forbidden Region with
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In the Klein paradox regime, the negative-energy solutions of the Dirac/Klein–Gordon equations should not be interpreted as particles in... -
Ppines-demon reacted to anuttarasammyak's post in the thread Klein Paradox: Momentum in the Classically Forbidden Region with
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I have once learned that by incorporating the Quantum Field Theory perspective that "pair production is occurring from the Dirac sea... -
Ppines-demon replied to the thread Undergrad Carroll interviews Barandes on Indivisible Stochastic QM.@Morbert you have played more with the math, what does t mean for a two level system, let's say a switch with two positions. What is the...
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Ppines-demon reacted to gentzen's post in the thread Undergrad Carroll interviews Barandes on Indivisible Stochastic QM with
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Nice contribution. I agree with two of your points: I would have liked him to do more work on that „quantum reconstruction“ side... -
Ppines-demon replied to the thread Undergrad Carroll interviews Barandes on Indivisible Stochastic QM.How I am not following this discussion?! Edit: Oh I see, this is that 2025 podcast.
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Ppines-demon reacted to Zaciekawiony's post in the thread Famous people known for two totally unrelated accomplishments with
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Charles Dodgson – widely known as a writer, author of "Alice in Wonderland" under the pseudonym Lewis Carroll. He was also a good... -
Ppines-demon reacted to Nugatory's post in the thread Graduate Time evolution of a detected particle with
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Not quite. We need to consider the resolution of our position-measuring apparatus. That resolution is not infinite, so the result of a... -
Ppines-demon replied to the thread Graduate Time evolution of a detected particle.Well (assuming free particle) starting at ##|\psi(t=0)\rangle=|x_0\rangle## you need only to carry $$|\psi(t)\rangle=e^{-i\hat H...
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Ppines-demon replied to the thread Undergrad Heat radiation in vacuum.Sure, consider it a "yes and" instead.