Formula_11925

\[\begin{gathered}H=\sum_{i=1}^{N} \frac{p_{i}^{2}}{2 m}+\sum_{1 \leqslant i \leqslant j \leqslant N} \Phi\left(\left|\overrightarrow{q_{i}}-\overrightarrow{q_{j}}\right|\right) ; \\\Psi=\sum_{j=1}^{N} \Psi\left(\overrightarrow{q_{j}}\right),\end{gathered}\]