cover letter

Cover_Letter/CoverLetter.tex

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+\documentclass[10pt]{letter}
+\usepackage{UPS_letterhead,color,mhchem,mathpazo,ragged2e}
+\newcommand{\alert}[1]{\textcolor{red}{#1}}
+
+\begin{document}
+
+\begin{letter}%
+{To the Editors of the Journal of Chemical Theory and Computation}
+
+\opening{Dear Editors,}
+
+\justifying
+Please find enclosed our manuscript entitled \textit{``Spin-Conserved and Spin-Flip Optical Excitations From the Bethe-Salpeter Equation Formalism''}, 
+which we would like you to consider as a Regular Article in the \textit{Journal of Chemical Theory and Computation}.
+This contribution nicely fits in the \textit{``Quantum Electronic Structure''} section.  
+This contribution has never been submitted in total nor in parts to any other journal, and has been seen and approved by all authors.
+
+In the present manuscript, we extent the Bethe-Salpeter equation (BSE) approach from many-body perturbation theory to the spin-flip formalism in order to access double excitations in molecular systems. Going beyond the ubiquitous static approximation (which is equivalent to the adiabatic approximation of TD-DFT), we also propose a perturbative treatement to take into account the dynamical nature of the Bethe-Salpeter equations. 
+All of these techniques are combined within the spin-unrestricted formalism that we have extended to the $GW$ approximation and the BSE formalism in the present study.
+Explicit equations for all of these methods are explicitly provided.
+Taking the beryllium atom, the dissociation of the hydrogen molecule, and cyclobutadiene in two different geometries as examples, we have shown that the spin-flip BSE formalism can accurately model double excitations and seems to surpass systematically its spin-flip TD-DFT parent. 
+
+Because of its novelty and its large impact in the electronic structure community, we expect the present study to be of interest to a wide audience within the chemistry and physics communities.
+We suggest Anna Krylov, David Casanova, So Hirata, Nicholas Mayhall, Miquel Huix-Rotllant, Patrick Rinke, Fabien Bruneval, Wim Klopper, and Lucia Reining as potential referees.
+
+We look forward to hearing from you soon.
+
+\closing{Sincerely,}
+
+
+\end{letter}
+\end{document}
+
+
+
+
+
+

Cover_Letter/UPS_letterhead.sty

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+%ANU etterhead Yves
+%version 1.0	12/06/08
+%need to be improved
+
+
+\RequirePackage{graphicx}
+
+%%%%%%%%%%%%%%%%%%%%% DEFINE USER-SPECIFIC MACROS BELOW %%%%%%%%%%%%%%%%%%%%%
+\def\Who     {Pierre-Fran\c{c}ois Loos}
+\def\What    {Dr}
+\def\Where   {Universit\'e Paul Sabatier}
+\def\Address {Laboratoire de Chimie et Physique Quantiques}
+\def\CityZip {Toulouse, France}
+\def\Email   {loos@irsamc.ups-tlse.fr}
+\def\TEL     {+33 5 61 55 73 39}
+\def\URL     {} % NOTE: use $\sim$ for tilde
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% MARGINS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\textwidth       6in
+\textheight      9.25in
+\oddsidemargin   0.25in
+\evensidemargin  0.25in
+\topmargin       -1.50in
+\longindentation 0.50\textwidth
+\parindent       5ex
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%% ADDRESS MACRO BELOW %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\address{
+    \includegraphics[height=0.7in]{CNRS_logo.pdf}     \hspace*{\fill}\includegraphics[height=0.7in]{UPS_logo.pdf}
+	\\
+	\hrulefill
+	\\
+	{\small \What~\Who\hspace*{\fill} Telephone:\ \TEL
+	\\
+	\Where\hspace*{\fill}  Email:\ \Email
+	\\
+	\Address\hspace*{\fill}
+	\\
+	\CityZip\hspace*{\fill} \URL}
+	 }
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%% OTHER MACROS BELOW %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\signature{\What~\Who}
+
+\def\opening#1{\ifx\@empty\fromaddress
+ \thispagestyle{firstpage}
+ \hspace*{\longindendation}\today\par
+ \else \thispagestyle{empty}
+ {\centering\fromaddress \vspace{5\parskip} \\
+\today\hspace*{\fill}\par}
+ \fi
+ \vspace{3\parskip}
+ {\raggedright \toname \\ \toaddress \par}\vspace{3\parskip}
+ \noindent #1\par\raggedright\parindent 5ex\par
+ }
+
+%I do not know what does the macro below
+
+%\long\def\closing#1{\par\nobreak\vspace{\parskip}
+ %\stopbreaks
+ %\noindent
+ %\ifx\@empty\fromaddress\else
+ %\hspace*{\longindentation}\fi
+ %\parbox{\indentedwidth}{\raggedright
+ %\ignorespaces #1\vskip .65in
+ %\ifx\@empty\fromsig
+ %\else \fromsig \fi\strut}
+ %\vspace*{\fill}
+% \par}