The power per logarithmic interval of k, as defined in Eq. (46), at redshifts z = 0 (left panel) and z = 2 (right panel). The solid lines are the linear power spectrum “P_L”, the nonlinear Zeldovich power spectrum “P_Zel”, given by Eq. (13), the nonperturbative correction “P_s.c.”, given by Eq. (45), and the sum P_Zel + P_s.c. associated with the “sticky model”, Eq. (41). The dot-dashed lines, which grow very fast and are only partly drawn, are the absolute values of the standard perturbative terms  |P⁽²⁾|  and  |P⁽³⁾| , from Eq. (23). The lower dashed lines are the “renormalized” perturbative terms of the expansion (24), from Eq. (26), for n = 1 to 5 and n = 10,15,20,30,50, and 70. The peak moves to higher k as the order n increases. The dotted lines that follow the nonlinear Zeldovich power spectrum until a Gaussian decay are the partial sums , with N = 5,10,15,20, and 30. All terms are multiplied by the factor 4πk³ of Eq. (46).