Demystifier's latest activity
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Demystifier replied to the thread High School Do Dark Energy and the Casimir effect indicate Exotic Matter could exist?.Indeed. For a relatively simple explanation why and how Casimir effect originates from van der Waals forces see my... -
Demystifier reacted to Ibix's post in the thread High School Do Dark Energy and the Casimir effect indicate Exotic Matter could exist? with
Agree.
I don't think the Casimir effect does, no. My limited understanding is that it can be rewritten as an effect of van der Waals forces... -
Demystifier reacted to akhmeteli's post in the thread Undergrad On computing quantum waves exactly from classical action with
Like.
Hossenfelder has blogged about the article, called it mathematically erroneous (actually, she was somewhat blunter :smile: ). -
Demystifier replied to the thread Today I Learned.Today I learned that Terry Rudolph, the R from the famous PBR theorem, is a grandson of Erwin Schrodinger and his mistress...
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Demystifier reacted to javisot's post in the thread Undergrad Hawking radiation may smooth black hole singularities with Like.
https://arxiv.org/abs/2412.02742 "Dynamical formation of regular black holes", Pablo Bueno (Spain). In this case, they construct the...
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Demystifier replied to the thread Undergrad On computing quantum waves exactly from classical action.I have not studied the papers in detail, but at a first look the critique looks much more plausible.
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Demystifier reacted to akhmeteli's post in the thread Undergrad On computing quantum waves exactly from classical action with Like.
Critique of the article: https://arxiv.org/abs/2605.02621 I would need some time to find out whether the article is wrong or the critique...
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Demystifier replied to the thread Graduate Why is 0 K unattainable?.If the Hamiltonian has a continuous spectrum, then, in the canonical ensemble with non-zero temperature, any given energy has non-zero...
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Demystifier replied to the thread Graduate Why is 0 K unattainable?.You are right that any state with definite energy has zero probability in that sense. But there is nothing wrong with that conclusion...
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Demystifier replied to the thread Graduate Six Textbook Mistakes in Quantum Field Theory.I think there were a few, but I can find only this one: https://www.physicsforums.com/threads/quantum-mechanics-myths-and-facts.143045/
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Demystifier reacted to Josiah's post in the thread Graduate Relationship between superconductors and gravity with
Skeptical.
Hi What is the relationship between superconductors and gravity? Eugene podkletnov came up with some interesting findings. The first... -
Demystifier reacted to anuttarasammyak's post in the thread Graduate Is the variation of the metric ##\delta g_{\mu\nu}## a tensor? with Agree.
Thank you @Demystifier 1. I observe that a. ## \bar{g}_{\mu\nu}-g_{\mu\nu}## transforms as a covariant tensor under coordinate...
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Demystifier replied to the thread Graduate Six Textbook Mistakes in Quantum Field Theory.I joined this forum soon after writing this paper, so this is how I have chosen my name. :smile:
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Demystifier reacted to gentzen's post in the thread Graduate Six Textbook Mistakes in Quantum Field Theory with Like.
https://arxiv.org/abs/quant-ph/0609163 (Quantum mechanics: Myths and facts, H. Nikolić)
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Demystifier reacted to Muu9's post in the thread Graduate Six Textbook Mistakes in Quantum Field Theory with Like.
https://arxiv.org/abs/2604.24871 Discussion on Reddit: