PeterDonis's latest activity
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PeterDonis reacted to Matterwave's post in the thread Undergrad Spatial separation of entangled particles implies physical separability? with
Like.
Not for the EPR state. It is still an entangled state and not a product state. When EPR says (something like) "after T, the two... -
PeterDonis reacted to Demystifier's post in the thread Graduate Entanglement swapping and Bohmian mechanics with Like.
It seems to me that you fail to grasp the notion of a Hilbert space at a sufficiently abstract level. To understand it properly you have...
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PeterDonis replied to the thread Graduate Entanglement swapping and Bohmian mechanics.To follow up more on this: the Ma paper [1] says (bottom of p. 4): It's unfortunate, at least for our discussion here :wink:, that...
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PeterDonis reacted to DrChinese's post in the thread Graduate Entanglement swapping and Bohmian mechanics with Like.
I am studying, will respond tomorrow. Thanks! -DrC
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PeterDonis replied to the thread Undergrad Spatial separation of entangled particles implies physical separability?.You do get 2, but you can't split the state up into a product of two states each with a value 1 for the number operator. That's what it...
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PeterDonis replied to the thread Graduate Entanglement swapping and Bohmian mechanics.I will note, btw, that although I've pitched this in terms of Bohmian mechanics, what I posted in that post only involves the wave...
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PeterDonis replied to the thread Graduate Entanglement swapping and Bohmian mechanics.I have a suggested Bohmian model of the DCES experiment. I'll sketch it for now, and possibly follow up with more detail in later posts...
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.That's correct.
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.If you're using an interpretation of QM that includes collapse, yes. Paths aren't wave functions, and even in collapse interpretations...
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.Not in QM, no. Even that's not quite a direct observable; it gives you the probability amplitude, but all you can actually observe is...
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PeterDonis replied to the thread Undergrad Young's slits with incandescent light source.@TheHutch you seem to be trying to model all possible states of light in terms of "photons". Unfortunately, that's not a workable...
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.You're misunderstanding the role the paths play in QM. In QM, all of the paths are included in the machinery that determines the...
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.Are you familiar with the path integral formulation of QM? That is the formulation that uses these paths and explains why.
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.Yes, that's because QM is not a classical theory. GR is a classical theory. Since, as you note, QM includes non-stationary paths...
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PeterDonis replied to the thread Graduate Deviations from classical action and D’alembert's principle, why is D’alembert's principle not applicable to QM?.This is the QM forum, not the relativity forum. If you are asking, what would it mean in the context of quantum field theory in curved...