\documentclass[10pt]{article}

\usepackage{fullpage}
\usepackage{CJKutf8} 
\usepackage[utf8]{inputenc}
\usepackage{setspace}
\usepackage{parskip}
\usepackage{titlesec}
\usepackage[section]{placeins}
\usepackage{xcolor}
\usepackage{breakcites}
\usepackage{lineno}
\usepackage{hyphenat}





\PassOptionsToPackage{hyphens}{url}
\usepackage[colorlinks = true,
            linkcolor = blue,
            urlcolor  = blue,
            citecolor = blue,
            anchorcolor = blue]{hyperref}
\usepackage{etoolbox}
\makeatletter
\patchcmd\@combinedblfloats{\box\@outputbox}{\unvbox\@outputbox}{}{%
  \errmessage{\noexpand\@combinedblfloats could not be patched}%
}%
\makeatother


\usepackage{natbib}




\renewenvironment{abstract}
  {{\bfseries\noindent{\abstractname}\par\nobreak}\footnotesize}
  {\bigskip}

\titlespacing{\section}{0pt}{*3}{*1}
\titlespacing{\subsection}{0pt}{*2}{*0.5}
\titlespacing{\subsubsection}{0pt}{*1.5}{0pt}


\usepackage{authblk}


\usepackage{graphicx}
\usepackage[space]{grffile}
\usepackage{latexsym}
\usepackage{textcomp}
\usepackage{longtable}
\usepackage{tabulary}
\usepackage{booktabs,array,multirow}
\usepackage{amsfonts,amsmath,amssymb}
\providecommand\citet{\cite}
\providecommand\citep{\cite}
\providecommand\citealt{\cite}
% You can conditionalize code for latexml or normal latex using this.
\newif\iflatexml\latexmlfalse
\providecommand{\tightlist}{\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}%

\AtBeginDocument{\DeclareGraphicsExtensions{.pdf,.PDF,.eps,.EPS,.png,.PNG,.tif,.TIF,.jpg,.JPG,.jpeg,.JPEG}}

\usepackage[utf8]{inputenc}
\usepackage[english]{babel}



\usepackage{float}






% Edit this header.tex file to include frontmatter definitions and global macros

% Add here any LaTeX packages you would like to load in all document blocks
% \usepackage{xspace}

% Add here any LaTeX macros you would like to load in all document blocks
% \def\example{This is an example macro.}

% -----

\iflatexml
% Add here any LaTeXML-specific commands

% -----

\else
% Add here any export style-specific LaTeX commands. These will only be loaded upon document export.
% \paperfield{Subject domain of my document}
% \keywords{keyword1, keyword2}
% \corraddress{Author One PhD, Department, Institution, City, State or Province, Postal Code, Country}
% \fundinginfo{Funder One, Funder One Department, Grant/Award Number: 123456.}
\fi


\begin{document}
\begin{CJK}{UTF8}{gbsn}

\title{The tale of two rooms: comparison of QuSpin zero-field OPMs' operation
in two magnetically shielded environments}



\author[1]{Ekaterina Skidchenko}%
\author[1,2]{Anna Butorina}%
\author[3]{Nikita Fedosov}%
\author[2,3]{Oleg Shevtsov}%
\author[2,3]{Daria Medvedeva}%
\author[4,5]{Darisy Zhao }%
\author[4]{Ignat Dubynin }%
\author[1,6]{Maxim Fedorov}%
\author[1,2]{Nikolay Koshev}%
\author[2,3]{Alexei Ossadtchi}%
\affil[1]{Skolkovo Institute Of Science And Technology}%
\affil[2]{LIFT, Life Improvement by Future Technologies Institute}%
\affil[3]{Centre for Bioelectric Interfaces Higher School of Economics}%
\affil[4]{Moscow State University of Psychology and Education (MEG Center)}%
\affil[5]{National Research Centre "Kurchatov Institute"}%
\affil[6]{Kharkevich Institute of Information Transmission Problems of RAS}%


\vspace{-1em}



  
  \date{April 30, 2026}


\begingroup
\let\center\flushleft
\let\endcenter\endflushleft
\maketitle
\endgroup





\selectlanguage{english}
\begin{abstract}
This paper addresses several critical aspects of using optically pumped
magnetometers (OPMs), focusing on both metrological issues and the
enhancement of signal quality. We present a quantitative methodology for
OPM measurements standardization and quality evaluation, which is
crucial in biomedical applications like magnetoencephalography (MEG).
Additionally, we introduce a novel, cost-effective portable active
magnetic shielding system -- digital adaptive suppression system (DASS)
-- that represents a significant advancement over traditional analog
active shielding. Through comprehensive experimental research, we
evaluate first- and third-generation commercial OPMs from QuSpin Inc. in
two distinct magnetic environments. Our results demonstrate that the
DASS ensures optimal and reliable OPM performance, even in noisy urban
settings, surpassing the effectiveness of conventional analog shielding.
These findings highlight the need for advanced magnetic shielding
solutions to enhance the accuracy and reproducibility of OPM
measurements.%
\end{abstract}%



\sloppy




\selectlanguage{english}
\FloatBarrier
\end{CJK}\end{document}

