Talk:Particle in a one-dimensional lattice (periodic potential)
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Oh no, all the images are untagged! Could somebody draw new ones? The guy who put them here hasn't been around wikipedia for a year. Pfalstad 17:12, 7 October 2005 (UTC)
Does someone have a standard textbook on QM to check if the 4 by 4 matrix is correct? I suspect that there is a sign error in the fourth row, fourth column.
I am not able to check the 4 by 4 matrix, but I suppose that the same sign error is in the last equation. The Kronig-Penney relation is $\cos(ka) = \cos(\alpha a) + P\frac{\sin{\alpha a}}{\alpha a}$. (Albeverio at al.;Solvable models in quantum mechanics)
== Error in Image == mahim
There's a picture of one period -b < x < a-b that labels the end of the interval as 'a'. This is wrong and confusing. Someone should upload a new image. —Preceding unsigned comment added by 129.105.207.198 (talk) 05:38, 2 December 2007 (UTC)
[edit] Proposed merger
This article is much more substantive than One-dimensional_periodic_case so perhaps that article should just be deleted. I didn't want to do anything rash though, so I decided to start a discussion. By the way, has there never been an image called Potential-approx.PNG? I could probably create one. Alison Chaiken 05:29, 8 January 2006 (UTC)
- Yes, we should merge. The three images in this article were all untagged, so they got deleted. Pfalstad 11:00, 8 January 2006 (UTC)
