PeterDonis's latest activity
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PeterDonis replied to the thread Undergrad Single-photon double-slit with multiple apparatus?.I'm not sure what you mean by this. The interference pattern is a consequence of the wave function of a single photon. The double slit... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.Interestingly, this paper claims that its conclusions are independent of any interpretation--in other words, Zurek is claiming to derive... -
PeterDonis replied to the thread Undergrad If gravity is emergent, how does this affect string theory and loop quantum gravity?.The basic idea of string theory is that everything is emergent from the underlying string dynamics, including not just gravity but all... -
PeterDonis replied to the thread Announcement PF Style 2026.I guess we'll find out, when we see whether these new changes affect traffic, and if so how. -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.But on this view, what Carroll is doing in the paper we've been discussing is obviously wrong, since he's claiming that, once... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.That seems to be basically what Carroll is doing in the paper under discussion. And, as I've already pointed out, since it's equivalent... -
PeterDonis reacted to PAllen's post in the thread Undergrad Euclidean geometry and gravity with
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You can start here to look for references: https://en.wikipedia.org/wiki/Nash_embedding_theorems Also look at the Whitney embedding... -
PeterDonis replied to the thread Announcement PF Style 2026.I don't use Chrome, I use Firefox. :wink: I believe there are Firefox extensions that allow you to do this, but I haven't looked into... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.:biggrin: Can you give any references? -
PeterDonis replied to the thread Announcement PF Style 2026.Understood, no pressure. That said, I have some experience with PHP and CSS, and decoupling styling (fonts/colors/etc.) from page... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.But the "probabilities" here don't even make sense--at least, that's the problem that all this is supposed to solve, but Carroll et al... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.Which is assuming the Born Rule--so as an argument for deriving the Born Rule, it's just arguing in a circle. (I think this general... -
PeterDonis replied to the thread Announcement PF Style 2026.I don't necessarily mean multiple mode versions, just more than two modes. Is two modes hard-coded somewhere, or could there be more... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.I don't think he's making that mistake. What he is calling "multiplicity" is the number of worlds in which the relative frequency of the... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.MWI proponents, as I understand it, say that the worlds are physically real--as a consequence of the more gerneral claim that the wave...