\begin
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\author{Your Name}
\title{\bfseries Your Title}
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\begin{document}
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\maketitle
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\begin{abstract}
\zihao{-4}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose. An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose. \\
\textbf{Keywords: keyword1 --- keyword2 --- keyword3}
\end{abstract}
\section{Introduction}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose \cite{2022NewAR..9501659P}.
\section{Methods}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\begin{align}
h^\mathrm{TT}_{\mu\nu}(t,z) =
\begin{pmatrix}
0 & 0 & 0 & 0 \\
0 & h_+ & h_\times & 0 \\
0 & h_\times & -h_+ & 0 \\
0 & 0 & 0 & 0
\end{pmatrix}
\cos\left[\omega(t-z)\right],
\label{eqn:h}
\end{align}
Equation (\ref{eqn:h}) shows how to reference a equation. An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\section{Results}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\subsection{Result \#1}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\begin{figure}[htbp]
\centering
\includegraphics[width=0.8\textwidth]{figures/plot.pdf}
\caption{Left panel: $V=0,~Q<0,~U=0$, i.e., \emph{$\pi/2$ linear} polarization, right panel: $V=0,~Q=0,~U<0$, i.e., \emph{$3\pi/4$ linear} polarization.}\label{fig:pl}
\end{figure}
Figure \ref{fig:pl} shows how to add a figure caption and reference a figure. An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\subsection{Result \#2}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\begin{table}[htbp]
\zihao{5}
\caption{2022 Winter Olympics medal table}
\label{tab:data}
\centering
\begin{tabular}{ccrrrr}
\toprule
Rank & NOC & Gold & Silver & Bronze & Total \\
\midrule
1 & Norway & 16 & 8 & 13 & 37 \\
2 & Germany & 12 & 10 & 5 & 27 \\
3 & China & 9 & 4 & 2 & 15 \\
\bottomrule
\end{tabular}
\end{table}
Table \ref{tab:data} shows how to add a table caption and reference a table. An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\section{Discussions}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\section{Conclusion}
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose.
\begin{acknowledgements}
This work is supported by the ...
\end{acknowledgements}
\bibliographystyle{sysu}
\bibliography{ref}
\end{document}