Recent content by auditor

@Super nade: that seems like a really cool class. I'd be happy to type out a couple of pages. Have you checked out LyX? It's really convenient whenever you need to typeset anything with a certain amount of mathematics in it. Basically, it's a WYSIWYG-editor, which generates LaTeX-code. Make...

That would be great! As far as I understand, there are still some treasures unknown to the west in the scientific literature of the old Soviet union. I think it would be a great asset to the PF Library. @Super nade: My familiarity with Green's functions is almost non-existing, so I'd like to...

Yup, books.google.com seems to be the right tool to evaluate Dover classics before purchase. :)

Thanks Peeter! I've been thinking of getting my hands on that one for a while now - perhaps I finally will. :) However, a quick look at the index doesn't seem too promising regarding Green's functions, but I might need better glasses... Do you have any particular passage in mind?

Thanks jsea-7. I was aware of the book by Roach, but fear it is a little verbose for my needs. Have you had a chance to study it closely?

Do anyone have a recommendation for a great resource to learn Green's functions from? Preferably a book with a generous amount of examples. I'm thinking something like a solid introduction to applied partial differential equations or the like. Ideally, there would be a lot of illustrations as...

I came to my own rescue, it seems (or rather Mark Srednicki did). For reference, the evaluation is done in his "Quantum Field Theory", p. 55. A draft version may be downloaded from professor Srecnicki's homepage. I'm not allowed to post URL's quite yet, but google his name and you'll find his...

[SOLVED] Evaluate the Klein-Gordon action I'm interested in evaluating the Klein-Gordon action in P&S, p. 287. It goes as follows S_0 = \frac{1}{2} \int d^4 x \! \phi \left( - \partial^2 -m^2 \right) \phi + \left(\text{surface term} \right) The surface terms drops out, that's fine. I...

Thanks kdv! It's all clear now.

[SOLVED] One-particle irreducibles in P&S I'm going through the derivation of the -i\Sigma_2 (p) correction in Peskin & Shcroeder. On the top of page 218, eq. 7.17 they say -i\Sigma_{2}\left(p\right) = -e^{2}\int_{0}^{1}dx\int\frac{d^{4}\ell}{\left(2\pi\right)^{4}}\frac{-2x...

Wow - that's true. :) Thanks a lot George, really appreciate it!

I'm wondering how in Peskin & Schroeder they go from i\mathcal{M} = {\overline{v}^s^'} (p^{'}) (-ie\gamma^\mu)u^s(p) \left( \frac{-ig_{\mu\nu}}{q^2} \right) \overline{u}^r (k) (-ie\gamma^\nu) v^{r^{'}} (k) at the bottom of page 131 to (5.1) at the top of 132 which reads i\mathcal{M}...