PeterDonis's latest activity
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PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.Perhaps you would say that, but that's not what the math says. The math says that the interference terms in the relevant wave function... -
PeterDonis reacted to Paul Colby's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with
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My training is in experiment side of physics. If I turn on this "forced physical" interaction, I would have to get up from my stool and... -
PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.@aletheia I have deleted some comments in two of your posts complaining about what you're not allowed to post here. Any further such... -
PeterDonis reacted to robphy's post in the thread Undergrad How does reciprocal time dilation work? with
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Just a postscript... (thanks to a mentor for re-opening this to allow me to make this hopefully-helpful comment) Since the OP recently... -
PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.Moderator's note: Two posts discussing a paper on "dark photons" have been deleted. It's not clear that that paper is even a valid... -
PeterDonis reacted to weirdoguy's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with
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It has been discarded from modern quantum physics a long time ago (even though pop-science still talks about it). It has been discussed... -
PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.If by "photon" you mean specifically one photon detection--one mark on a detector screen--then yes. But... It's something else: it's... -
PeterDonis replied to the thread Undergrad How does a cloud chamber respond to 2-slit interference?.An interesting variant of this experiment to consider: what if there is no vacuum region behind the slits? That is, the cloud chamber... -
PeterDonis replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.Moderator's note: Thread moved to the QM interpretations and foundations subforum. -
PeterDonis reacted to Matterwave's post in the thread Undergrad Particle vs Wave Interpretations of QM with
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Differential equations require initial value conditions or boundary value conditions to be uniquely specified. -
PeterDonis replied to the thread Undergrad How to understand the basis transformation of the Rosen metric?.It's equation (35) in the paper that was referenced in post #8 in the thread. The null coordinates used in the paper seem to me to be... -
PeterDonis replied to the thread Undergrad Particle vs Wave Interpretations of QM.Yes, if you already know the field globally, that determines what sources are necessary to produce that field. But of course that's true... -
PeterDonis replied to the thread Undergrad How to understand the basis transformation of the Rosen metric?.Hm. When I plug the metric into Maxima, I do get a Riemann tensor with no components purely in the ##x## - ##y## submanifold. However, I... -
PeterDonis reacted to Matterwave's post in the thread Undergrad How does reciprocal time dilation work? with
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This statement suggest you still do not grasp the relativity of simultaneity. Consider for space like separated events ##A,B##, I can... -
PeterDonis reacted to Dale's post in the thread Undergrad How does reciprocal time dilation work? with
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Have you completed the figure I described above? Please post it...