Demystifier's latest activity
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Demystifier replied to the thread Undergrad Particle vs Wave Interpretations of QM.Hobson is wrong. QFT does not remove the need for quantum interpretations. And of course, Feynman was one of the developers of QFT, he... -
Demystifier reacted to jeffn1's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
I am curious whether undergrad physics students take courses on the philosophy of science. For example, does your syllabus include... -
Demystifier replied to the thread Graduate Why is there gauge freedom in ADM formalism?.The dependence on lapse and shift is hidden in the ADM Hamiltonian and momentum constraints. That's because these constraints are...
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Demystifier reacted to Roberto Pavani's post in the thread Undergrad If gravity is emergent, how does this affect string theory and loop quantum gravity? with Like.
Thank you for posting this. My reading may be incomplete, but I see it primarily as a derivation of the Einstein equations from...
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Demystifier reacted to Roberto Pavani's post in the thread Graduate Gerry and Knight solution to single-mode Maxwell equation with Like.
I'll try to answer as best I can. For the first part, the "missing ω" is effectively hidden inside the definition of q(t). In the...
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Demystifier replied to the thread Undergrad If gravity is emergent, how does this affect string theory and loop quantum gravity?.Sabine also made a video on that paper:
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Demystifier reacted to kodama's post in the thread Undergrad If gravity is emergent, how does this affect string theory and loop quantum gravity? with Like.
the paper in Physical Review Letters this means gravity isn't a fundamental force if true what does this means to string theory...
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Demystifier replied to the thread Undergrad If gravity is emergent, how does this affect string theory and loop quantum gravity?.In such a theory there may still be a graviton, but in such a theory it is a collective excitation analogous to a phonon (a quantum of...
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Demystifier reacted to Morbert's post in the thread Graduate What is decoherence in consistent histories? with
Informative.
The consistent histories formalism lets us calculate interference terms between histories. A set of histories is decoherent when these... -
Demystifier replied to the thread Undergrad Dissecting entanglement.No value of ##\phi## makes the state a classical product state. Perhaps you meant the ##\theta_l##? But if for some reason the ##\phi##...