deletions | additions       diff --git a/2QEnergies.tex b/2QEnergies.tex  index 4eb6ed7..e33bcf1 100644  --- a/2QEnergies.tex  +++ b/2QEnergies.tex 
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\newcommand{\heav}[2]{\ensuremath{\theta(#1-#2)}}  \newcommand{\adag}{a^{\dagger}} \newcommand{\adag}{\ensuremath{a^{\dagger}}}  \newcommand{\id}{\mathbb{1}}  \newcommand{\Hilb}{\ensuremath{\mathscr{H}}} 
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\begin{equation}  \hat{H}_{2q}=\hbar \frac{\omega_0}{2}\adag a   % \bra{cacca}  \langle  \end{equation}  \end{document}