Everyone who answered the assignment passed, well done. For most of you I have attached a short solution manual, which I hope you'll have a look at. You get the assignments back from the Physics Front Office.
You can now get your solutions back at the Physics Front Office. If you did not pass, the deadline for handing in an improved solution is found on the main course page.
For exercise 3.5, the relation $ln(1-x) \approx -x$, valid for $x\ll 1$ is useful. It holds both ways, i.e. it can be used both to expand the logarithm and to recombine terms as logarithms.
The comment field works as expected, even if it does not seem possible to comment on a comment. There is no LaTeX interpreter, but if you're fluent you can read the math anyway, e.g. $n_B = \frac{(N+M-1)!}{M!(N-1)!}$ from exercise 1.1.
jorgentr om ?Oblig 2?
Everyone who answered the assignment passed, well done. For most of you I have attached a short solution manual, which I hope you'll have a look at. You get the assignments back from the Physics Front Office.
jorgentr om ?Oblig 2?
In 1b, if you calculate the magnetization to find the susceptibility, it is useful to write it on the same form as eq. (5.35) in Yeomans' book.
jorgentr om ?Oblig 2?
In problem 1, you should let N tend to infinity when you determine the free energy per spin.
Luiza Angheluta-Bauer om ?Oblig 2?
There was a misprint in the periodic boundary condition before Eq. 1. This has been corrected in the new version.
jorgentr om ?Problem set 11?
You can come to FV434 if you want a written solution to this exercise. I may or may not spend time on writing an answers sheet.
jorgentr om ?Oblig 1?
You can now get your solutions back at the Physics Front Office. If you did not pass, the deadline for handing in an improved solution is found on the main course page.
jorgentr om ?Oblig 1?
Equation (7.3) in Yomans' book has an obvious indexing error in its last condition. Please do not get fooled by this.
jorgentr om ?Problem set 3?
Answers to problem set 3 have been posted.
jorgentr om ?Problem set 3?
In exercise 3.11 b) there appears to be a sign error in the definition of $P(S,V,N)$. Equation (3.36) should be used in its place.
jorgentr om ?Problem set 3?
For exercise 3.5, the relation $ln(1-x) \approx -x$, valid for $x\ll 1$ is useful. It holds both ways, i.e. it can be used both to expand the logarithm and to recombine terms as logarithms.
jorgentr om ?Problem set 2?
Answers to the exercises have now been posted.
Olav Fredrik Sylju?sen om ?Problem set 2?
Either you can buy the book at Akademika, or you can look at the pdf-file from this webpage They both have the other exercises.
maxbg om ?Problem set 2?
I got the 2006 Version of the book and it seems there is only exercises 2.1-2.8 in there...
andrhaf om ?Welcome to the blog?
Kommentarfeltet er n? ?pent for alle!
Olav Fredrik Sylju?sen om ?Problem set 1?
Looks good. Lets try it!
jorgentr om ?Problem set 1?
We are working on making the comment field writable for anyone.
jorgentr om ?Problem set 1?
The comment field works as expected, even if it does not seem possible to comment on a comment. There is no LaTeX interpreter, but if you're fluent you can read the math anyway, e.g. $n_B = \frac{(N+M-1)!}{M!(N-1)!}$ from exercise 1.1.
jorgentr om ?Test blog article?
Test the reply. If you're fluent in LaTeX you can read math even if it's not compiled, e.g. $n_B = \frac{(N+M-1)!}{M!(N-1)!}$.
jorgentr om ?Test blog article?
This seems to work well. However, what are my LaTeX capabilities?