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WernerQH's latest activity
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WernerQH
replied to the thread
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Is there a bad intuition or bad explanation in quantum entanglement?
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Gentzen, thanks for investigating. :-) My copy of that arxiv paper is dated February 15, 2024. So I probably became aware of it also...
Sep 18, 2025
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WernerQH
replied to the thread
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Is there a bad intuition or bad explanation in quantum entanglement?
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A while ago @bhobba pointed to an interesting paper by T Padmanabhan: "Obtaining the Non-relativistic Quantum Mechanics from Quantum...
Sep 18, 2025
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WernerQH
reacted to
jjson775's post
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Energy*time uncertainty for particle decay
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Thanks. This answered my question.
Sep 17, 2025
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WernerQH
reacted to
Herman Trivilino's post
in the thread
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Energy*time uncertainty for particle decay
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The position-momentum uncertainty principle is alive and well. I don't know the history, but certainly one still sees the erroneous...
Sep 16, 2025
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WernerQH
reacted to
JimWhoKnew's post
in the thread
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Energy*time uncertainty for particle decay
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Did you mean: ? (my favorite Griffiths quotation)
Sep 16, 2025
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WernerQH
replied to the thread
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Energy*time uncertainty for particle decay
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I think the first alternative is better, but it depends on how you define ΔE and Δt. For ## \Delta t ## it is customary to use the...
Sep 16, 2025
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WernerQH
replied to the thread
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Electron energy in atoms
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A vector ## \ket{\Psi} ## in Hilbert space, multiplied by any complex number(*), represents exactly the same state. That's why it is...
Sep 7, 2025
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WernerQH
reacted to
Demystifier's post
in the thread
Today I Learned
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Agree
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I learned that $$|e^{i\pi}|=|\pi^{ie}|=|i^{e\pi}|=1$$
Sep 2, 2025
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WernerQH
reacted to
Cthugha's post
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Visual depiction of atomic orbitals
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Just to add to all the correct comments that were made already: The wording above is dangerous because it mixes two different pictures...
Sep 2, 2025
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WernerQH
reacted to
JimWhoKnew's post
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Visual depiction of atomic orbitals
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Informative
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##Y^m_l## is a function of two variables that has complex values on a sphere. Following @WernerQH in post #6, ##p_z## is described by...
Aug 31, 2025
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WernerQH
replied to the thread
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Visual depiction of atomic orbitals
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Wavefunctions are usually written down in a coordinate system where the z-axis is singled out, i.e. the azimuthal quantum number ## m ##...
Aug 30, 2025
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WernerQH
reacted to
ohwilleke's post
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Physical properties of the vacuum in GR vs. QFT
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Informative
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For the most part, the problem is that string theory and GUTs and other BSM models simply don't make predictions about parameters at...
Aug 27, 2025
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WernerQH
reacted to
Meir Achuz's post
in the thread
B
What is the difference between B and H?
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Haha
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The confusion is due to SI units where B and H do have a complicated connection. In Gaussian units, H is just B-4\pi M, where M is...
Jul 23, 2025
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