deletions | additions       diff --git a/2QEnergies.tex b/2QEnergies.tex  index 82c98f8..fbb5f6c 100644  --- a/2QEnergies.tex  +++ b/2QEnergies.tex 
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H_{2q}=\hbar\omega_0 D^{\dagger}(\omega^{-1}_0 \hat{\gamma}^{\dagger})\adag a D(\omega^{-1}_0 \hat{\gamma}) + \hbar \frac{\omega_1}{2}\sigma^{(1)}_z + \hbar \frac{\omega_2}{2}\sigma^{(2)}_z - \omega^{-2}\hat{\gamma}^{\dagger}\hat{\gamma}  \end{equation}    where I use the following displacement operator property properties  \begin{equation}  \begin{split}