调整表格中的文字

Question

我希望最后一行（2\pi 和 4\pi）的文本位置位于行的中间。其他一切都很好，应该保持不变。

\usepackage{array,bm,amsmath}
\newcolumntype{P}[1]{>{\centering\arraybackslash}p{#1}}


\begin{table}
\caption{Comparisons between the 0-$\pi$ qubit and the non-compact transmon/CPB.}
  \centering
  \begin{tabular}{|P{3.5cm}|P{2.2cm}|P{2.2cm}|}
    \hline
     & \textbf{Qubit potential periodicity}          & \textbf{Gate potential periodicity} \\ \hline
    \textbf{The 0-}$\bm{\pi}$ \textbf{qubit [7,18]}                 & $\pi$ & $2\pi$   \\ \hline
    \textbf{The non-compact transmon/CPB}                      &  $2\pi$  & $4\pi$   \\ \hline
  \end{tabular}
  \label{table:compare}
  \end{table}

我怎样才能做到这一点？

Answer 1

将m单元格/列的内容垂直居中

\documentclass{article}

\usepackage{array}
\usepackage{booktabs}  

\usepackage{array,bm,amsmath}
\newcolumntype{P}[1]{>{\centering\arraybackslash}m{#1}}


\begin{document}  

\begin{table}
\caption{Comparisons between the 0-$\pi$ qubit and the non-compact transmon/CPB.}
  \centering
  \begin{tabular}{|P{3.5cm}|P{2.2cm}|P{2.2cm}|}
    \hline
     & \textbf{Qubit potential periodicity}          & \textbf{Gate potential periodicity} \\ \hline
    \textbf{The 0-}$\bm{\pi}$ \textbf{qubit [7,18]}                 & $\pi$ & $2\pi$   \\ \hline
    \textbf{The non-compact transmon/CPB}                      &  $2\pi$  & $4\pi$   \\ \hline
  \end{tabular}
  \label{table:compare}
  \end{table}
\end{document}

编辑

添加了一些美化

\begin{table}
\caption{Comparisons between the 0-$\pi$ qubit and the non-compact transmon/CPB.}
  \centering
   \begin{tabular}{P{3.5cm}P{2.2cm}P{2.2cm}}
    \hline
     & \multicolumn{2}{c}{\textbf{Potential periodicity}}\\ \cline{2-3} 
     & \textbf{Qubit}          & \textbf{Gate} \\ \hline
    \textbf{The 0-}$\bm{\pi}$ \textbf{qubit [7,18]} & $\pi$ & $2\pi$   \\ \hline
    \textbf{The non-compact transmon/CPB}           &  $2\pi$  & $4\pi$   \\ \hline
  \end{tabular}
  \label{table:compare}
  \end{table}
\end{document}