Recent content by enrikofermi

Thank you very much Doc!

I have used Wolfram Alpha and got (almost) same result as I calculated earlier. (See pic) But in my book I have r instead of k in denominator. And that result in the book is fundamental! It must be correct. Where have Wolfram and me failed?

No, didn't. That is whole problem, to do Fourier inverse of 7.46. Sorry because it is sideways. :/

No. I'm learning some physics and need to calculate this to get next step, but i can't. :/

Hi all. I have to do Fourer inversion of an equation 7.46 but I don't know how to do that. If anybody has any idea it wolud be very helpfull. Inversion of S(q) is G(r).

I have used convolution theorem, but I didn't get exactly same solution as author. Look how I calculated that. Arguments of my functions are considerably different. And that is what confuses me...

Yes, I know, it was discussed earlier. But that what confused me was arguments of those functions under integral. Why are they different? And why they differ from those arguments of function outside of integral?

Anybody? To help with this manybody? :)

Thanks! Is the Fourier transform of C (with hat) just C without hat, taking into account deffinition of C? What make me confused are the arguments of functions in 7.38. Why r-r', and so on...?

Hi all. I'm learning something about critical phenomena and I have one problem. I'm bad with Fourier transforms so I don't know how from 7.37 we have 7.38. I have tryed everything I knew, but fruitless. I have attached picture of my problem. Does anybody has any idea how I can solve this?

Hi guys. I'm Miso, graduate physics student. My field of reshearch is condensed matter physics. I hope I wil be part of successfull discusions and that I will help someone to solve some physics problems.