@Bml issues like yours is part of why I always say that any treatment of introductory mechanics that even talks about centrifugal anything should be thrown into the bin.

@ACuriousMind hm ok sensible. i got the other authors removed from the author list, so ill take this as an overall win for integrity

Have you put all the cats in the acknowledgements? You can even add them to the authorship, you know?

In alphabetical order.

m i a o ~

M I A O ~

@naturallyInconsistent LMAO

miahahaha

@naturallyInconsistent Close enough :p

:P

@Sanjana I don't know who brought this following paper to myow attention, maybe it is you, maybe it was the bolb, but considering that you were so interested in the $\hslash$ expansion to get semi-classical physics with quantum corrections, there is a non-trivial version in arxiv.org/abs/1009.2313 and at the one point where it referenced alternative schemes in ref number 7, there were 4 papers listed, the most relevant is arxiv.org/abs/hep-th/0405239

The former paper took a rather non-obvious step of extracting $\hslash$ from each of mass, charge, coupling constant, etc. It looked rather arbitrary to meow, until in the latter paper, it was realised that (1) the oft-prescribed quotation, namely that loop expansion is equivalent to powers of $\hslash$ expansion, is simply wrong, by constructing a counterexample, and (2) within that construction, it was realised that it was necessary that some of the other constants should have a

factor of $\hslash$ in them, or else there would be stuff that don't make sense. This motivates the former paper to make that non-obvious step. One unrelated thing, I like the former paper, that it tried to talk about bound states (maybe also motivated by the fact that the latter paper was also trying to talk about bound states). It seems to not be aware that there are recent new progress in obtaining the bound states of a realistic Dirac proton + Dirac electron. I'm now optimistic that

combining these methods, maybe it would be possible to solve the point-charge Dirac proton + Dirac electron problem directly, thereby giving a world's first ab initio treatment of bound states within QFT. I'm curious how far we can push this. Alas, I have no time...

@Sanjana Really interesting, thanks for answering.

Anyways, my method eventually worked out, although it was much longer than the one presented in the solution, which still does not sit right with me but ok: $$ \langle \psi |r|\rangle = \int_{\mathbb{R}^{+}} dr r^3 \left\vert \frac{\sqrt{3}}{2}R_{21} + \frac{e^{i\alpha}}{2}R_{31} \right\vert^2$$

@Sanjana Chad

hi

do u think human life is short, and why

Does Big Bang assume that universe was created? Or, can it be that theoretically universe have always existed, even if Big Bang theory is true

@Sanjana This is insanely impressive