我正在使用RevTeX4-2。我在部分名称中有一个数学表达式。我希望它与周围的文本具有相同的字体粗细：在正文中为粗体，在目录中为常规字体。通常的做法是，\section[toc version]{doc version}不起作用，如以下 MWE 所示
\documentclass[aps,reprint,superscriptaddress]{revtex4-2}
\usepackage{bm}
\begin{document}
\title{This is the title}
\author{Bob Author}
\affiliation{L.A. Tex University}
\date{\today}
\begin{abstract}
Revtex doesn't seem to allow the section titles to have a different name in the table of contents.
\end{abstract}
\maketitle
\tableofcontents
\section[Case $\alpha>1$]{Case $\alpha>1$}
Note that $\alpha>1$ is not boldfaced in the section title.
\section[Case $\beta>1$]{Case \bm{$\beta>1$}}
In contrast, $\beta>1$ is indeed boldfaced in the section title.
Unfortunately, it is also boldfaced in the Table of Contents.
\vfill
\end{document}
输出：
切换到memoir类（虽然report也可以工作），通常的方法确实有效：
\documentclass{memoir}
% The `report` class would also work.
\usepackage{bm}
\begin{document}
\tableofcontents
\section[Case $\alpha>1$]{Case $\alpha>1$}
This uses the `memoir` class, but `report` would also work.
As before, $\alpha>1$ is not boldfaced in the section title.
\section[Case $\beta>1$]{Case \bm{$\beta>1$}}
Again, $\beta>1$ is indeed boldfaced in the section title.
However, this time around, it is \emph{not} boldfaced in
the Table of Contents.
\end{document}
有没有办法让 RevTex4-2 在目录中使用章节名称的“toc 版本”（其中包含非粗体数学符号）？
答案1
正如您所发现的，revtex4-2不要使用可选\section参数来编写目录。
可以通过更改宏中的一行来修复此问题\@sect@ltx。我不知道如何修补这个长命令，但通过在文档中重新定义它，目录中的粗体字就被删除了。
尝试一下此代码。它需要编译两次。
\documentclass[aps,reprint,superscriptaddress]{revtex4-2}
\usepackage{bm}
\usepackage{showframe} % show margins
%********************************added <<<<<<<<<<<<<<<<<<<<<<
\makeatletter
\def\@sect@ltx#1#2#3#4#5#6[#7]#8{%
\@ifnum{#2>\c@secnumdepth}{%
\def\H@svsec{\phantomsection}%
\let\@svsec\@empty
}{%
\H@refstepcounter{#1}%
\def\H@svsec{%
\phantomsection
}%
\protected@edef\@svsec{{#1}}%
\@ifundefined{@#1cntformat}{%
\prepdef\@svsec\@seccntformat
}{%
\expandafter\prepdef
\expandafter\@svsec
\csname @#1cntformat\endcsname
}%
}%
\@tempskipa #5\relax
\@ifdim{\@tempskipa>\z@}{%
\begingroup
\interlinepenalty \@M
#6{%
\@ifundefined{@hangfrom@#1}{\@hang@from}{\csname @hangfrom@#1\endcsname}%
{\hskip#3\relax\H@svsec}{\@svsec}{#8}%
}%
\@@par
\endgroup
\@ifundefined{#1mark}{\@gobble}{\csname #1mark\endcsname}{#7}%
\addcontentsline{toc}{#1}{%
\@ifnum{#2>\c@secnumdepth}{%
\protect\numberline{}%
}{%
\protect\numberline{\csname the#1\endcsname}%
}%
#7}% <<<<<<<<<<<<<<<<<<<<<<<< changed from #8
}{%
\def\@svsechd{%
#6{%
\@ifundefined{@runin@to@#1}{\@runin@to}{\csname @runin@to@#1\endcsname}%
{\hskip#3\relax\H@svsec}{\@svsec}{#8}%
}%
\@ifundefined{#1mark}{\@gobble}{\csname #1mark\endcsname}{#7}%
\addcontentsline{toc}{#1}{%
\@ifnum{#2>\c@secnumdepth}{%
\protect\numberline{}%
}{%
\protect\numberline{\csname the#1\endcsname}%
}%
#8}%
}%
}%
\@xsect{#5}}%
\makeatother
%*******************************
\begin{document}
\title{This is the title}
\author{Bob Author}
\affiliation{L.A. Tex University}
\date{\today}
\begin{abstract}
Revtex doesn't seem to allow the section titles to have a different name in the table of contents.
\end{abstract}
\maketitle
\tableofcontents
\section[Case $\alpha>1$]{Case $\alpha>1$}
Note that $\alpha>1$ is not boldfaced in the section title.
\section[Case $\beta>1$]{Case \bm{$\beta>1$}}
In contrast, $\beta>1$ is indeed boldfaced in the section title.
Unfortunately, it is also boldfaced in the Table of Contents.
\vfill
\end{document}