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-rw-r--r--ising_scaling.tex20
1 files changed, 10 insertions, 10 deletions
diff --git a/ising_scaling.tex b/ising_scaling.tex
index c25dfe2..fb01780 100644
--- a/ising_scaling.tex
+++ b/ising_scaling.tex
@@ -373,7 +373,7 @@ entirely fixed, and it will be truncated at finite order.
\caption{
Example of the parametric coordinates. Lines are of constant $R$ from
$-\theta_0$ to $\theta_0$ for $g(\theta)$ taken from the $n=6$ entry of
- Table \ref{tab:fits}. {\color{blue} \bf XXX Can we have lines of constant $\theta$ as well? Maybe dashed? Also maybe smaller radii, $R=1/4$, 1/2, and 1? Legend could be
+ Table \ref{tab:fits}. {\color{blue} \bf XXX Can we have lines of constant $\theta$ as well? Maybe dashed? Also maybe smaller radii, $R=1/4$, 1/2, and 1?}
} \label{fig:schofield}
\end{figure}
@@ -421,8 +421,8 @@ present in $\mathcal F(\theta)$. The analytic structure of this function is
shown in Fig.~\ref{fig:schofield.singularities}. Two copies of the Langer
branch cut stretch out from $\pm\theta_0$, where the equilibrium phase ends,
and the Yang--Lee edge singularities are present on the imaginary-$\theta$
-line, where they must be since $\mathcal F$ has the same symmetry in $\theta$
-as $\mathcal F_+$ has in $\xi$.
+line (because $\mathcal F$ has the same symmetry in $\theta$
+as $\mathcal F_+$ has in $\xi$).
The location of the Yang--Lee edge singularities can be calculated directly
from the coordinate transformation \eqref{eq:schofield}. Since $g(\theta)$ is
@@ -451,13 +451,13 @@ part of the free energy.
Our strategy follows. First, we take the singular imaginary parts of the
scaling functions $\mathcal F_{\pm}(\xi)$ and truncate them to the lowest order
-accessible under polynomial coordinate changes of $\xi$. Then, we assert that
-the imaginary part of $\mathcal F(\theta)$ must have this simplest form,
-implicitly defining the parametric coordinate change. Third, we perform a
+accessible under polynomial coordinate changes of $\xi$. Then, we constrain
+the imaginary part of $\mathcal F(\theta)$ to have this simplest form,
+implicitly defining the analytic parametric coordinate change $g(\theta)$. Third, we perform a
Kramers--Kronig type transformation to establish an explicit form for the real
-part of $\mathcal F(\theta)$. Finally, we make good on the assertion made in
-the second step by finding the coordinate transformation that produces the
-correct series coefficients of $\mathcal F_{\pm}$.
+part of $\mathcal F(\theta)$ involving a second analytic function $G(\theta)$. Finally, we make good on the constraint made in
+the second step by fitting the coefficients of $g(\theta)$ and $G(\theta)$ to reproduce the
+correct known series coefficients of $\mathcal F_{\pm}$.
This success of this stems from the commutative diagram below. So long as the
application of Schofield coordinates and the Kramers--Kronig relation can be
@@ -589,7 +589,7 @@ The scaling function has a number of free parameters: the position $\theta_0$
of the abrupt transition, prefactors in front of singular functions from the
abrupt transition and the Yang--Lee point, the coefficients in the analytic
part $G$ of the scaling function, and the coefficients in the undetermined
-coordinate function $g$. Other parameters are determined by known properties.
+coordinate function $g$. The other parameters $B$, $C_0$, $\theta_{YL$ are determined by known properties.
For $\theta>\theta_0$, the form \eqref{eq:essential.singularity} can be
expanded around $\theta=\theta_0$ to yield