Roberto Pavani's latest activity
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Roberto Pavani reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Agree.
But on this view, what Carroll is doing in the paper we've been discussing is obviously wrong, since he's claiming that, once... -
Roberto Pavani reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Agree.
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... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.The "trick" of replacing a branch by multiple copies in order to recover the Born rule seems reasonable at first sight. One might... -
Roberto Pavani reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
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... -
Roberto Pavani reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
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... -
Roberto Pavani reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
Yes, that's one of the reasons why trying to explain where the Born Rule comes from is a major open issue with the MWI. And please bear... -
Roberto Pavani reacted to PeterDonis's post in the thread Undergrad Particle vs Wave Interpretations of QM with
Like.
While in general this is a caveat that needs to be kept in mind, for the particular case under discussion here, spin measurements on... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.From the replies so far, I still have not managed to understand whether MWI worlds are regarded as physically real entities or merely as... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.A real observer only has access to the outcomes observed in their own branch and can estimate probabilities only from those frequencies... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.Let ##K## denote the number of real ##(\text{observer},\text{counting history})## pairs after ##N## binary measurements. 1. If ##K =... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.Suppose the underlying quantum event is strongly asymmetric, for example ##P(A)=0.9,\qquad P(B)=0.1##. There are still exactly... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.In that paper, Carroll and Lodman explicitly state that observers do not observe the global wavefunction; they observe only the branch... -
Roberto Pavani replied to the thread Graduate Square root of Kretschmann scalar in Schwarzschild metric.Thank you all for the references. In fact, my original curiosity came from the observation that, in Schwarzschild vacuum, ##... -
Roberto Pavani reacted to robphy's post in the thread Graduate Square root of Kretschmann scalar in Schwarzschild metric with
Informative.
While dimensional analysis is merely a guide, it obviously has to be followed up with seeing if it (obtained from a scalar formed from... -
Roberto Pavani replied to the thread Undergrad Particle vs Wave Interpretations of QM.OK, perhaps I am starting to understand. If MWI is taken literally, then the truly fundamental objects are the universal wavefunction...