Power spectra for the ﹩L=100\ h^{-1}\ \mathrm{Mpc}\,﹩, ﹩N=64^{3}﹩ ensembles with P‐sampled ICs (left) and ξ‐sampled ICs (right) for five output a_uni values, as labeled. The black line, purple region, light green region, and red line have the same meanings as in Fig. 9. On the right side of each panel is a green line marking the expected Poisson noise contribution to the power spectrum, V/N.