Find corrections to the eigenvalues of the matrix \(H\) given below to lowest nonvanishing order in \(\epsilon\)
\begin{equation}
H= \begin{pmatrix}
1 & \epsilon & 0 \\
\epsilon & 2 & \epsilon\\
0 & \epsilon & 2
\end{pmatrix}
\end{equation}
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4727:Diamond Point
0