jbergman's latest activity
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Jjbergman reacted to garrett's post in the thread Finally, Garrett's model with 3 generations with
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Yes, E8(8), a deforming Lie group is described by a variation of a Lie group manifold's Maurer-Cartan connection away from zero curvature. -
Jjbergman reacted to iste's post in the thread I Carroll interviews Barandes on Indivisible Stochastic QM with Like.
But a unistochastic process could feasibly be an effective description for any kind of underlying system you want. The unistochastic...
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Jjbergman replied to the thread I Carroll interviews Barandes on Indivisible Stochastic QM.Yes. From the interview he still says he doesn't have much intuition for the theory or have a fundamental ontology. At this point it's...
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Jjbergman reacted to iste's post in the thread I Carroll interviews Barandes on Indivisible Stochastic QM with Like.
I no longer consider this an interpretation of QM, I think. The stochastic process includes the measurement device and only tells you...
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Jjbergman posted the thread I Carroll interviews Barandes on Indivisible Stochastic QM in Quantum Interpretations and Foundations.Thought this might be of interest for those following Barandes nee interpretation. Carroll always has pretty good interviews...
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Jjbergman reacted to Bill_K's post in the thread Unraveling Dirac's General Relativity Equation with Like.
Dirac says, "Let us suppose each element of matter is displaced from zμ to zμ + bμ with bμ small. We must determine the change in pμ at...
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Jjbergman replied to the thread A Dirac's "GTR" Eq (27.4): how momentum ##p^\mu## varies.BTW, I found an old thread that mentions your Lie Derivative approach...
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Jjbergman replied to the thread A Dirac's "GTR" Eq (27.4): how momentum ##p^\mu## varies.Maybe, maybe not. I was aware of this part. Ok, this part, I was wondering whether ##b^r## was constant or not. I haven't read the...
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Jjbergman replied to the thread A Dirac's "GTR" Eq (27.4): how momentum ##p^\mu## varies.I read the passage around 27.4 and didn't understand Dirac's derivation either. I came up with the following. First we have an active...
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Jjbergman reacted to A. Neumaier's post in the thread I New book on algebraic quantum physics with Like.
1. The use of symmetry (in the form of Lie algebras and Lie groups) organizes the vast material on quantum physics into a form that...
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Jjbergman reacted to SergejMaterov's post in the thread A What happens when an operator maps a vector out of the Hilbert space? with Like.
If you drop symmetry, you get pathological, discontinuous, unbounded maps—but they’re of almost no use in analysis or physics.
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Jjbergman reacted to dextercioby's post in the thread A What happens when an operator maps a vector out of the Hilbert space? with Like.
I've always had an issue with that, because you see, the theorem of Hellinger & Toeplitz precisely says that a symmetric operator...
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Jjbergman replied to the thread I New book on algebraic quantum physics.Can you say something about the key differences and benefits of the algebraic approach to quantum physics?
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Jjbergman reacted to A. Neumaier's post in the thread A What happens when an operator maps a vector out of the Hilbert space? with Like.
The concept of operator relevant for QM is that of a 'densely defined operator', i.e., a linear operator A from a dense subspace of the...
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Jjbergman reacted to Demystifier's post in the thread I New interpretation for the double slit experiment with light? with Like.
After some additional reading and thinking, let me present a more detailed discussion. In the classical theory of light, described by...