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Diffstat (limited to 'essential-ising.tex')
-rw-r--r-- | essential-ising.tex | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/essential-ising.tex b/essential-ising.tex index 9397aa0..ba8e452 100644 --- a/essential-ising.tex +++ b/essential-ising.tex @@ -281,6 +281,7 @@ and their constants of integration fixed by known zero field values, yielding &=\fM(0)+\frac{AB}{\pi}\bigg(1-\frac{Y-1}Ye^{1/Y}\ei(-1/Y)\bigg)\\ \fF^\twodee(Y/B) &=-Y\bigg(\frac{\fM(0)}B-\frac{A}\pi e^{1/Y}\ei(-1/Y)\bigg) + \label{eq:2d_free_scaling} \end{align} with $F(t,h)=|t|^{2-\alpha}\fF(h|t|^{-\beta\delta})+t^{2-\alpha}\log|t|$ in two dimensions. @@ -364,12 +365,13 @@ correction appears to match data quite well. $h|t|^{-\beta\delta}$. Points with error bars show data with sampling error taken from simulations of a $4096\times4096$ square-lattice Ising model with periodic boundary conditions and $T_\c-T=0.01,0.02,\ldots,0.1$ - and $H=0.1\times(1,2^{-1/4},\ldots,2^{-50/4})$. Color denotes the value of - $T$, with red corresponding to $0.01$ and violet to $0.1$. The solid lines + and $H=0.1\times(1,2^{-1/4},\ldots,2^{-50/4})$. The solid blue lines show our analytic results \eqref{eq:sus_scaling} and - \eqref{eq:mag_scaling}, while the dashed lines show fits of - \eqref{eq:sus_scaling_poly} and \eqref{eq:mag_scaling_poly} to the data - for $N=0$, with $c_0=-0.0124$ and $\lambda=1.77$. + \eqref{eq:mag_scaling}, the dashed yellow lines show + \eqref{eq:sus_scaling_poly} and \eqref{eq:mag_scaling_poly} for $N=0$, the + dotted green lines show the same for $N=4$, and the red line show the + polynomial resulting from truncating the series after the eight known + terms. } \label{fig:scaling_fits} \end{figure} @@ -377,7 +379,13 @@ correction appears to match data quite well. \begin{figure} \input{fig-series} \caption{ - Something + The series coefficients defined by $\tilde\fF(X)=\sum_nf_nX^n$. The blue + pluses correspond to the scaling form \eqref{eq:2d_free_scaling}, the + yellow saltires correspond to that form with the first four coefficients + fixed to known values (\eqref{eq:sus_scaling_poly} with $N=0$), the green + stars correspond to that form with the first eight coefficients fixed to + known values (\eqref{eq:sus_scaling_poly} with $N=4$), and the red squares + correspond to the first eight coefficients. } \label{fig:series} \end{figure} |