%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Arnault_etal2019} Arnault, P., Perez, A., Arrighi, P., \& Farrelly, T. (2019). Discrete-time quantum walks as fermions of lattice gauge theory. \textit{Phys. Rev. A}, \textit{99}(3), 032110--16pp.

\end{thebibliography}

\end{document}

