l nucleus in the initial configurations</p>
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<div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[5]:
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<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">n_nuc</span> <span class="o">=</span> <span class="mi">300</span>
<span class="n">n_spec</span> <span class="o">=</span> <span class="mi">1600</span>

<span class="k">for</span> <span class="n">i