A simple abstract template for ExHILP 2023
\begin
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% A simple abstract template for ExHILP 2023
% 5th Extremely High Intensity Laser Physics
% Sep. 12-15, 2023
% Gwangju, Korea
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% SUBMIT A 1-PAGE PDF FILE ONLY!
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\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{geometry}
\geometry{a4paper, total={170mm,237mm}} % DO NOT CHANGE THE DIMENSION!
\pagestyle{empty}
\begin{document}
\begin{center}
% title
{\large \bf Abstract Title Here}
\bigskip
% authors
{First Author$^{*,1,2}$,
Second Author$^3$,
and Third Author$^{1,4}$}
\smallskip
% addresses
{\small\it
%addresses
$^1$Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, Korea
$^2$Advanced Photonics Research Institute, Gwangju Inst. of Sci. \& Tech., Gwangju, Korea
$^3$Department of Physics, Kunsan National Univ., Gunsan, Korea
$^4$Department of Physics and Photon Science, Gwangju Inst. of Sci. \& Tech., Gwangju, Korea
}
% email address of the corresponding author
$^*$aaa@bbb.ac.kr
\end{center}
\bigskip
%body of the abstract
GUIDELINE FOR SUBMITTING AN ABSTRACT
1. Prepare your abstract using this template. The page limit is STRICTLY 1 PAGE.
2. Submit the resulting PDF FILE at the conference website. \\
Physical phenomena in strong background fields differ from those in weak ones. The production of charged particle pairs in a strong electric field, known as the Schwinger effect, is one of the most prominent aspects of nonperturbative quantum electrodynamics (QED), and Hawking radiation from black holes is another phenomenon; both of which cannot be found by the weak field method.
Heisenberg-Euler and Schwinger [1] found the one-loop effective action in a strong constant electromagnetic field by computing the interactions of the negative-energy electrons in the Dirac sea with all even numbers of photons from the background electromagnetic field (see Fig.~\ref{fig:field_conf}), and showed that the Dirac vacuum under such a field becomes a polarized medium [2].
When the electric field is comparable to the critical field $E_{c} = m^2c^3/e\hbar = 1.3 \times 10^{16}\, {\rm V/cm}$, electron-positron pairs are significantly produced to have the mean number of pairs as
\begin{equation*}
{\cal N} (E) = e^{-\frac{\pi m^2}{eE}},
\end{equation*}
where we use the cgs Gaussian units with $c=\hbar =1$.
\begin{figure}[h!]
\centering
\includegraphics[width=0.5\textwidth]{fig.jpg}
\caption{Conference venue.}
\label{fig:field_conf}
\end{figure}
\smallskip
\parindent=0pt
% References
[1] J. Schwinger, \emph{Phys. Rev.} \textbf{82}, 664 (1951).
[2] R. Ruffini, G. Vereshchagin, S.-S. Xue, \emph{Phys. Rep.} \textbf{487}, 1 (2010).
\end{document}