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3:52 AM
@antimony I think your referring to the problem of how do we get classical from quantum mechanics and as far as I remember there isn't a straight forward way of doing this especially with the subtleties involved.
Also apparently there is potential energy transformation law in Galenian relativity O_O
 
4:11 AM
Nope wait I skimmed again
ignore this^
 
 
1 hour later…
5:29 AM
@JohnRennie hope you don't mind me pinging you. But do u see any fallacy in my line of reasoning in my latest question? It's classical mechanics and you like to explain that kind of stuff (usually to kids :P ) so I pinged :P
 
5:44 AM
1
Q: Minimum energy required to behave like a turning point?

More AnonymousSo I've managed to confuse myself. We know if the energy equal to the potential energy then point at which the energy exceeds the potential energy it behaves like a turning point (slide 2). Usually in the collision of (say billiard) rigid balls we assume $V = \infty$. I realized since it's behavi...

@MoreAnonymous This?
 
@JohnRennie yup
 
So we could for example put a particle in a finite potential well with a depth of 6J and give the particle a KE of 5J, then the turning points are at the walls where V > KE.
And you you're asking what if we now transport the whole system at some high speed so the KE becomes ¹⁄₂m(v + some high speed)² and it's a lot greater than 6J?
 
6:06 AM
yup
 
Hi there, I posted a Q on MSE but obtained no resonance. As it's strongly physically motivated maybe someone of you can help me here a bit? math.stackexchange.com/questions/4477140/…
In particular I would be happy on some hints on how to perform such a decomposition numerucally. i.e. if you have "only" numercial access to the field.
 
@JohnRennie feel free to directly write an answer. I'm replying intermittently cause I'm suppose to be at work
 
 
2 hours later…
8:23 AM
Are there non-conformal QFTs that don't have particle interpretations?
 
9:13 AM
What do you call a particle interpretation?
 
@Slereah what?
 
9:30 AM
See line above
 
ah ..
I think he's talking about how you can go between a qm theory and qft
 
 
13 hours later…
11:02 PM
ahh thanks @MoreAnonymous yes thats basically what i meant
 

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