\documentclass{beamer}

\usetheme{metropolis}

\setbeamertemplate{navigation symbols}{}

\AtBeginSection[]
{
\begin{frame}<beamer>
\frametitle{Outline}
\tableofcontents[currentsection]
\end{frame}
}

\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{physics}
\usepackage{hyperref}
\usepackage{natbib}

% Include any other packages needed use \usepackage{...}
% Include any other external preamble in the paper using \input{...}

% Title information
\title{Title of the Presentation}
\author{Authors of the Paper}
\institute{Institution}
\date{\today}

\begin{document}

% SLIDE_CONTENT

\begin{frame}[allowframebreaks]{Reference}
    \bibliography{the bib file used to generate the paper}
\end{frame}

\end{document}
