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Jan
20
awarded  Popular Question
Jan
8
awarded  Popular Question
Dec
3
awarded  Nice Question
Oct
21
accepted Where can a good treatment of the 'sudden' perturbation approximation be found?
Apr
6
comment how to solve this scaling equation
Sorry for being difficult but I am not able to get the ansatz from your final final equation. I am subbing in $x = log s - log b$. Is this type of scaling equation covered in any textbooks?
Apr
5
comment how to solve this scaling equation
thanks for the answer. The problem is tougher than I envisioned. I'm still working through what you wrote and I wasn't clear what your $f(x)$ is. Is that the same as $\psi$? Also it seems that s/b would shift x by -log b.
Apr
5
accepted Simple description of exchange interaction?
Apr
5
accepted Limit of Lorentzian is Dirac Delta
Apr
5
asked how to solve this scaling equation
Apr
3
awarded  Popular Question
Feb
21
asked finding resistance from percolation theory with only energy disorder
Feb
16
awarded  Yearling
Dec
17
asked Simple description of exchange interaction?
Nov
24
awarded  Quorum
Oct
18
comment electron hole exchange
I figured it must have been something along those line. Any idea where I could learn more about this?
Oct
18
asked electron hole exchange
Sep
14
accepted How is the Saddle point approximation used in physics?
Sep
13
asked How is the Saddle point approximation used in physics?
Aug
31
comment Where can a good treatment of the 'sudden' perturbation approximation be found?
Thanks for the suggestion. It has been translated to English and is on Amazon. Just ordered it from the library.
Aug
31
asked Where can a good treatment of the 'sudden' perturbation approximation be found?