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%% Sample TeX file for the HRMS Dijon 2023 abstracts
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\documentclass[11pt]{article}

\usepackage{hrms}  %% Page settings, style ... for the HRMS abstract book.

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\title{PRECISION SPECTROSCOPY OF A SINGLE TRAPPED MOLECULAR NITROGEN ION}

%% Note that \author and \address macros must be paired.
%% The names of authors must also appear IN CAPITALS.
%% The name(s) of author(s) presenting the work is(are) usually underlined.

\author{\underline{\FirstName A. \LastName SHLYKOV},
\FirstName M. \LastName ROGUSKI,
\FirstName R. \LastName KARL and
\FirstName S. \LastName WILLITSCH}
\address{Department of Chemistry, University of Basel, 4056 Basel, Switzerland}

%% The \FirstName and \LastName macros are mandatory for each author
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%% Add or remove \author and \address pair(s) below to suite your needs


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%% Place below other \usepackage{ ... }, if you need other packages.
%% See http://www.tug.org/texlive/doc.html for a description of available packages.

%% The macros below will change the page head and foot.
%% Please, do not modify the content of the \fancyhead macro nor the \fancyfoot line.
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
  Aug. 28 - Sept. 1, 2023}}}
\fancyfoot[C]{}
\renewcommand{\headrulewidth}{0.6pt}
\renewcommand{\footrulewidth}{0.6pt}

%% The hyperref package allows to include hyperlinks in a document.
%% See the instructions for abstract submission for more details.
%% WARNING: Make sure that this package comes LAST since it re-defines many LaTeX macros.
\usepackage[colorlinks=true,urlcolor=blue,linkcolor=blue,citecolor=blue]{hyperref}
\voffset -.65 cm

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\category {15,3}
\begin{document}

\maketitle  %% This will also build the list of author(s) and addresse(s).

%% Index macro(s): see the abstract samples and the instructions
%% Remove the %% to account for the index item(s)
\index{N$_2^+$}
\index{N2+}
\index{Nitrogen}
\index{Molecular Ions}
\index{Quantum-Logic Spectroscopy}
\index{rotational Spectroscopy}
\index{Vibrational Spectroscopy}
\index{Rovibrational Spectroscopy}

%% Place the body of your abstract below.
Precision spectroscopy of dipole-forbidden rotational and vibrational transitions in molecular ions could serve as a probe for detecting possible temporal variation of fundamental constants, testing fundamental physical theories, establishing new frequency standards in the mid-IR and investigating state-to-state dynamics of chemical reactions. However, until recently, it was impossible to achieve the required precision due to the lack of control over the molecular ions on the quantum level. We are developing new methods which allow us to prepare a single molecular ion in its rovibrational ground state\footnote{A. Shlykov, M. Roguski and S. Willitsch. \textit{In preparation.}}, detect its quantum state with high-fidelity\footnote{M. Sinhal, Z. Meir, K. Najafian, G. Hegi, and S. Willitsch. \textit{Science}, 367:1213, 2020. \href{https://doi.org/10.1126/science.aaz9837}{DOI: 10.1126/science.aaz9837}} and perform highly sensitive and precise spectroscopic experiments on dipole-forbidden transitions in N$_2^+$ in MHz, GHz and THz range\footnote{K. Najafian, Z. Meir, and S. Willitsch. \textit{Phys. Chem. Chem. Phys.}, 22:23083, 2020. \href{https://doi.org/10.1039/D0CP03906C}{DOI: 10.1039/d0cp03906c}}. The absolute frequency stability of the measurements is provided by referencing all radiation sources' frequencies to the Swiss primary frequency standard operated by the Swiss Federal Institute of Metrology METAS in Bern\footnote{D. Husmann \textit{et al. Opt. Express}, 29:24592, 2021. \href{https://doi.org/10.1364/OE.427921}{DOI: 10.1364/OE.427921}}. These will allow us to reach an absolute measurement precision on the level of 10$^{-15}$, establishing a new state-of-the-art in the spectroscopy of molecular ions and opening up new horizons for many physical and chemical applications.


 




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