Demystifier's latest activity
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Demystifier replied to the thread I Violation of Bell Inequality with unentangled photons.The paper says that photon paths are indistinguishable. It's not the same as indistinguishability of photons themselves, but they define... -
Demystifier replied to the thread I Violation of Bell Inequality with unentangled photons.Also note that even the QED vacuum, i.e., a state with zero number of photons, is highly entangled. Hence it is really impossible to...
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Demystifier replied to the thread I Violation of Bell Inequality with unentangled photons.The effect is explained in the paper by quantum indistinguishability. But indistinguishability in QM is implemented by symmetrization of...
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Demystifier replied to the thread A Physical properties of the vacuum in GR vs. QFT.Iskandarani, I would suggest you to first study something similar but much simpler and much better understood. You can contrast the...
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Demystifier reacted to Ibix's post in the thread A Is there any topology behind factor 2 in Schwarzschild radius? with
Like.
I think you can just absorb the two into the definition of ##G##. It's defined the way it is because we thought Newton's law of gravity... -
Demystifier reacted to Anton Rize's post in the thread A Is there any topology behind factor 2 in Schwarzschild radius? with
Haha.
Laconic clean and neat. Love it! You must a blast at party's. -
Demystifier replied to the thread I Conventionality of the One-Way Speed of Light.The Einstein synchronization convention is just that - a convention. Physics does not depend on conventions. Various synchronization...
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Demystifier replied to the thread A Is there any topology behind factor 2 in Schwarzschild radius?.No.
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Demystifier replied to the thread I Transformation for Lemaitre coordinates.More generally, for two system of coordinates ##x## and ##y##, one has ##x^{\mu}=f^{\mu}(y)##, so $$dx^{\mu}=f^{\mu}_{,\nu}(y)dy^{\nu}$$...
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Demystifier reacted to renormalize's post in the thread I Transformation for Lemaitre coordinates with Like.
Yes you can! Inspired by https://en.wikipedia.org/wiki/Lema%C3%AEtre_coordinates, note that your two...
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Demystifier replied to the thread A Confusion about creation/annihilation operators with interaction.This question can be answered at two levels, abstract theoretical and practical. At the abstract theoretical level ##t_0## can be...
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Demystifier replied to the thread Classical How is Jackson’s Electrodynamics taught during undergraduate?.A few easy courses were structured so that I learned absolutely nothing there, but most of the courses were ok. All in all, I am satisfied.
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Demystifier replied to the thread Classical How is Jackson’s Electrodynamics taught during undergraduate?.No electrodynamics at all.
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Demystifier replied to the thread Classical How is Jackson’s Electrodynamics taught during undergraduate?.In my case (Zagreb, Croatia) at the first year we used the Berkeley course, and then at the third year the lectures on electrodynamics...
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Demystifier reacted to A. Neumaier's post in the thread A Challenge to Bohmian mechanics by Sharoglazova et al, Nature, 2025 with Like.
https://philsci-archive.pitt.edu/26230/