X-Git-Url: https://hackdaworld.org/gitweb/?p=lectures%2Flatex.git;a=blobdiff_plain;f=ising%2Fising_slides.tex;h=acd4553143492fe203bf58d4059b7736e46d8fbc;hp=a52fed78fa4cb851375c94eec57b39e2f9ff9faa;hb=53366825ad694164fa14f7c2f07fcfc06d7fc5e5;hpb=68c63b155821d71e6b470719efae7b8d99bce6f7 diff --git a/ising/ising_slides.tex b/ising/ising_slides.tex index a52fed7..acd4553 100644 --- a/ising/ising_slides.tex +++ b/ising/ising_slides.tex @@ -169,8 +169,8 @@ implizite Bestimmungsgleichung f"ur $B_0=0$: \begin{slide} \begin{itemize} -\item L"osung: $m \neq 0 \longleftrightarrow \frac{\partial (\tanh (\beta Jm))}{\partial m} > 1$ bei $m=0$ -\item kritische Temperatur: $\frac{\partial (\tanh (\beta Jm))}{\partial m} = 1$ bei $m=0$ +\item L"osung: $m \neq 0 \longleftrightarrow \frac{\partial (\tanh (\beta Jm))}{\partial m} > 1$ +\item kritische Temperatur: $\frac{\partial (\tanh (\beta Jm))}{\partial m} = 1$ f"ur $m=0$ \end{itemize} % \setlength{\unitlength}{2cm} % \begin{picture}(6,4)(-3,-2) @@ -305,7 +305,7 @@ F"ur den Fall $B_0 = 0$ gilt: \[ \begin{array}{l} \displaystyle \lambda_{\pm} = e^K \pm e^{-K} \\[2mm] - \displaystyle Z = 2^N \cosh^N (K) + 2^N \sinh^N (K) = 2^N \cosh^N (K) (1 + \tanh^N (K)) \stackrel{N >> 1}{\longrightarrow} 2^N \cosh^N (K) \\[2mm] + \displaystyle Z = 2^N \cosh^N (K) + 2^N \sinh^N (K) \stackrel{N >> 1}{\longrightarrow} 2^N \cosh^N (K) \\[2mm] \displaystyle F = -k_B T \, \textrm{ln} \, Z \stackrel{N >> 1}{\longrightarrow} -N k_B T \, \textrm{ln} \, (2 \cosh (\beta J)) \end{array} \]