bhobba's latest activity
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bhobba reacted to Peter Morgan's post in the thread Graduate Exploring Implicit Assumptions and Foundations of Quantum Mechanics with
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In axiomatic approaches to Quantum Field Theory, which I think any attempt to understand quantum theory will eventually have to engage... -
bhobba reacted to PeterDonis's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with
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There is no such thing. In "standard quantum mechanics", time evolution is only predicted by the Schrodinger equation in between... -
bhobba reacted to PeterDonis's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with
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No, this is not correct. An interpretation that claims single outcomes (which at least some versions of "Copenhagen" do--that term is... -
bhobba reacted to PeterDonis's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with
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According to an interpretation like the MWI, yes. But there are other interpretations that would not agree. Same comment here. -
bhobba replied to the thread High School This One Moved Me.I think, at rock bottom, math is motivated by an abstraction of physical reality. Why that abstraction was chosen, and even why to... -
bhobba reacted to Charles Link's post in the thread Undergrad Finding the minimum distance between two curves with
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@anuttarasammyak We are going to need to look over your two partial derivative expressions carefully, because your solution is... -
bhobba reacted to anuttarasammyak's post in the thread Undergrad Finding the minimum distance between two curves with
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continued from #2: With the help of Wolfram I get one real solution... -
bhobba reacted to Charles Link's post in the thread Undergrad Finding the minimum distance between two curves with
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@anuttarasammyak That's one part of what I did to solve it. Those two partial derivative expressions are really too clumsy to solve... -
bhobba reacted to anuttarasammyak's post in the thread Undergrad Finding the minimum distance between two curves with
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Square of the distance is $$L^2=(y_1-y_2)^2+(x_1-x_2)^2=(4-x_1^2-(x_2-3)^2)^2+(x_1-x_2)^2$$ The condition of minimum is $$\frac{\partial... -
bhobba reacted to DavidL070949's post in the thread Help with problem in MIT open course general relativity with
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All of this is very helpful indeed! I'm going to try to work through the details on my own, so that I make sure I really understand and... -
bhobba reacted to DavidL070949's post in the thread Help with problem in MIT open course general relativity with
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Apologies for the delay, but I'm still getting used to LaTex. Anyway, in answer to how I got to the expression(s) that left me stuck...