We had quite a number of entries for this vexer, but most of them are wrong, unfortunately. ... higher) ... is ... The method is as follows: Drop the first egg...
This week's vexer is one of the "standard" questions one might seen at the undergraduate level. It consists of TWO parts, so don't forget to do both. Consider...
We frequently get the same set of questions either in various discussion areas or on our IRC channel. Take note that our one of the folders in our Links...
Sometime, when I'm bored while I'm online in the evening, I make the occasional ventures in the #philosophy channel on the IRC Undernet server (I know, I'm...
To keep this discussion alive, I should have done thing a long time ago to help it along. I was browsing a few files that I have on the Feynman's path integral...
... Good paper. I agree wholeheartedly with the concluding remark: "the attractiveness of the sum-over-paths formulation should force reexamination of the...
... downloaded to ... physics ... A. Moore. ... the ... including ... relativity, ... contemporary ... Yeah, he had an editorial in one of the issues of Am. J....
Hi David, Zapper, et al., I think the path integral method is a good one and is very powerful for some sorts of applications. For example, although beyond the...
http://arxiv.org/abs/quant-ph/0403005 Well what do you know... path integral method not in "real" space, but in momentum space. Well why not? :) Zz....
Didn't think this one was that tough, but it stumped a few people... ... What ... earth ... The answer is that in both cases, the period of oscillation are ...
This week's vexer is nothing but mindless diversion. Listed below are anagrams containing various cities/towns in Europe, UK, and the US (the three largest...
Hey Tom et al, I guess it's possible that the reason I prefer the path integral approach is that I may not understand the other techniques as well as I...
... Hey zapper and tom, thanks for the Grosche and Hegseth refs. I'm getting quite a library of path integral tutorial papers ;) (and I'm archiving all of them...
Hi David, When it comes right down to it, I think we agree that using one method over another is really is a matter of taste and inclination. I don't want you...
... <zapperz2000@y...> ... space, ... getting ... archiving all of them in ... What?! You mean we did all the hard work and QM_from_GR gets all the credit? Not...
When was the last time this happened: The review article of a paper is more interesting than the paper itself? I think this just happened in the last issue of...
... I've been meaning to look into: how does this not conflict with relativity? IOW, is it possible for the FPI to predict a nonzero (and more than just...
... sorta ... I thought of an exercise that might be worthwhile: write down a *one-page* summary of the axioms of QM -- a different summary for each major ...
Hey Tom, ... wavefunction that still ... Yup, the muck is still there, we're just looking at it from different angles when we change from one formulation to...
Hi Z, ... This connection between quarks and fractionalization (from an emergent/condensed matter pov) has always seemed like a fruitful line of thought to me....
Hi Tom, My only problem here was this sentence that I couldn't understand: Magnetic fields from quantum intrinsic spin obviously conceptually complicates the...
Hi Ugur, ... Sorry about that. It is a pretty convoluted sentence. Here is another try. Classically, magnetism is associated with moving charge (i.e....
OK. Since straycat posted a file starting a discussion on the axioms of QM, I thought it would be interesting to compare that with the postulates of QM (at...
... Aha, very nice! I suppose the above links would qualify as being the postulates for the Schrodinger/wavefunction formulation. It will be interesting to...
Another way of looking at these things is that the rotational symmetry of a static source of electromagnetic fields limits their form. You don't have to know...
Hi video, Pretty cool. I agree, you highlighted another good way to look at it. Also, it's a nice (implict) application of the Wigner-Eckart therorem! -Tom ...
This week's issue of Science listed a rather interesting and informative website on all you want to know about entropy but feel just too silly to ask: ...
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