n class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">unitary_mats</span><span class="p">[</span><span class="n">k</span><span class="p">][</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span>
                            <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">num_m