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在边注上用指示符突出显示公设

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在边注上用指示符突出显示公设

目前我已经创建了一个假设环境，其工作原理如下，

\vspace{1em}
\begin{postulate}\label{section:Schrodinger}
    {\bfseries{\textsc{(Schr\"odinger) }}} Time translation is given by, $\rho\mapsto e^{-itH}\rho e^{itH}.$
\end{postulate}
\vspace{1em}

得出的结果是，

在此处输入图片描述

现在我想要做的是通过在边缘做一些指示类型的图表来突出或让读者关注这个陈述，如下所示，

在此处输入图片描述

答案1

使用该包的变体解决方案tcolorbox：

\documentclass{article}
\usepackage{lipsum}
\usepackage[theorems,skins]{tcolorbox}
\newtcbtheorem{postulate}{Postulate}{
description delimiters parenthesis,
separator sign ={.},
coltitle=black,
colback=white,
fontupper=\itshape,
fonttitle=\upshape\bfseries,
attach title to upper={\ },
empty,
left*=0pt,
right*=0pt,
boxsep=0pt,
top=1em,
bottom=1em,
borderline west={2mm}{-5mm}{blue} 
}{section}

\begin{document}
\lipsum[1]
\begin{postulate*} {Heisenberg} 
   Time translation is given by, $\rho\mapsto e^{-itH}\rho e^{itH}.$
   \lipsum[1]
\end{postulate*}
\lipsum[2]
\begin{postulate} {Schr\"odinger}{Schrodinger}
   Time translation is given by, $\rho\mapsto e^{-itH}\rho e^{itH}.$
   \lipsum[2]
\end{postulate}
\textcolor{red}{See} the postulate \ref{section:Schrodinger}
\end{document}

在此处输入图片描述

答案2

这就是你想要的吗？如果不是，请访问一

\documentclass{article}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage[T1]{fontenc}
\usepackage{mathtools}
\usepackage{lipsum}

\usepackage[framemethod=tikz]{mdframed}
% As I am working with transparency here, you should define darker colors.
\definecolor{colorBackground}{HTML}{F5F5F5} % Grey 500
\definecolor{colorDefinition}{HTML}{4CAF50} % Green 500
\definecolor{colorNotiz}{HTML}{81D4FA}      % Light Blue 200

\mdfdefinestyle{box}{
    topline=false,
    bottomline=false,
    rightline=false,
    linewidth=4pt,
    backgroundcolor=none,
    apptotikzsetting={\tikzset{mdfbackground/.append style={fill=gray!45,fill opacity=.6}}},
    frametitlefont=\sffamily\bfseries\color{black},
    splittopskip=.5cm,
    frametitlebelowskip=0.0cm,
}

% Definition
\mdtheorem[style=box,linecolor=colorDefinition]{Def}{Postulate}



\begin{document}
\begin{Def}
$$\rho\mapsto e^{-itH}\rho e^{itH}.$$
\end{Def}

\end{document}

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