\documentclass[preview, border=40px]{standalone}
\usepackage{../quantumcubemodel}
\begin{document}
\begin{qcmx}
    \qcmxO{0.71}
    \qcmxI{0.71}
    \qcmxRenderQ
    \qcmxClearQ

    \def\qcmxOffsetX{15}
    \qcmxRenderMeasureQ{x}

    \draw[black, ->, thick, >=Stealth] (21,1,0) -- (28,4,0) 
        node[midway, above, sloped] {\Huge Result: $\ket{0}$};

    \draw[black, ->, thick, >=Stealth] (21,-1,0) -- (28,-4,0) 
        node[midway, above, sloped] {\Huge Result: $\ket{1}$};
        
    \def\qcmxOffsetX{30}
    \def\qcmxOffsetY{5}
    \qcmxO{1}
    \qcmxRenderQ
    \qcmxClearQ

    \def\qcmxOffsetX{30}
    \def\qcmxOffsetY{-5}
    \qcmxI{1}
    \qcmxRenderQ
    \qcmxClearQ
\end{qcmx}
\end{document}