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Spinnor replied to the thread Graduate Universal quantum physics.In your paper you write (https://arnold-neumaier.at/ms/univQP.pdf page 29), "The situation is essentially the same for electrons and... -
Spinnor reacted to Cthugha's post in the thread Undergrad Confused about spontaneous emission with
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Consider a single atom in a cavity of very high, but not unlimited quality factor. If the atom decays and emits a photon into the cavity... -
Spinnor reacted to renormalize's post in the thread Graduate How to fix Relativistic QM so it's consistent? with
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The following is taken from Bjorken and Drell, Relativistic Quantum Mechanics (1964), pp. 5-6: So the problem with the Klein-Gordon... -
Spinnor reacted to DaveC426913's post in the thread Construction How do I fix a hedgehog enclosure that keeps getting too humid with
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By the way, do you have a hygrometer in there, to ensure you are tracking the actual humidity? They're about 10 bucks. -
Spinnor reacted to JimWhoKnew's post in the thread Undergrad The imaginary part of the wave function with
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Introductory textbooks usually deal a lot with time-independent Hamiltonians of the form$$H=\frac{\mathbf{P}^2}{2 m}+V(\mathbf{x})\quad... -
Spinnor reacted to Phil Hasnip's post in the thread Graduate Momentum density of silicon valence band using bandstructure with
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You don't give us enough information to interpret your plot. However, if you want the band-gradients in momentum space then they are... -
Spinnor reacted to pines-demon's post in the thread Graduate Two equivalent statements of time reversal symmetric Hamiltonian with
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Be careful, what is the argument? If you write ##H(t)## or ##H(\mathbf r)## it is not the same as ##H(\mathbf k)## (##\mathbf k## being... -
Spinnor reacted to Astronuc's post in the thread Quinoline tag helps vancomycin breach gram-negative defenses (C&EN) with
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https://cen.acs.org/pharmaceuticals/drug-discovery/vancomycin-derivative-targets-Gram-negative-bacteria/103/web/2025/12?sc=251211_sc_eng_... -
Spinnor reacted to DrChinese's post in the thread Undergrad Physicists disagree wildly on what quantum mechanics says about real… with
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You’re probably thinking “duh”. But that’s actually the title of the article that was published yesterday. Physicists disagree wildly...
