From: hackbard Date: Fri, 23 May 2003 17:33:33 +0000 (+0000) Subject: formula more short X-Git-Url: https://hackdaworld.org/gitweb/?p=lectures%2Flatex.git;a=commitdiff_plain;h=412609181d837b8024ebeee8d5b2b52f0506a758 formula more short --- diff --git a/ising/ising_slides.tex b/ising/ising_slides.tex index a52fed7..3e47903 100644 --- a/ising/ising_slides.tex +++ b/ising/ising_slides.tex @@ -305,7 +305,7 @@ F"ur den Fall $B_0 = 0$ gilt: \[ \begin{array}{l} \displaystyle \lambda_{\pm} = e^K \pm e^{-K} \\[2mm] - \displaystyle Z = 2^N \cosh^N (K) + 2^N \sinh^N (K) = 2^N \cosh^N (K) (1 + \tanh^N (K)) \stackrel{N >> 1}{\longrightarrow} 2^N \cosh^N (K) \\[2mm] + \displaystyle Z = 2^N \cosh^N (K) + 2^N \sinh^N (K) \stackrel{N >> 1}{\longrightarrow} 2^N \cosh^N (K) \\[2mm] \displaystyle F = -k_B T \, \textrm{ln} \, Z \stackrel{N >> 1}{\longrightarrow} -N k_B T \, \textrm{ln} \, (2 \cosh (\beta J)) \end{array} \]