on</span><span class="p">(</span><span class="n">pg</span><span class="p">)</span><span class="o">.</span><span class="n">amplitudes</span>
                <span class="n">st_vec_arr</span> <span class="o">=</span> <span class="n">st_vec_arr</span><span class="o">.</span><span class="n">reshape</span><span class="p">([</span><span class="mi">2</span><span class="p">]</span><span class="o">*</span><span class="bp">self</span><span class="o">.</span><span class="n">num_qbits</span><span class="p">)</span>
   