README: Moiré-Induced Optical Nonlinearities: Single and Multiphoton Resonances Folder containing the data for the manuscript Moiré-Induced Optical Nonlinearities: Single and Multiphoton Resonances by A. Camacho-Guardian and N. R. Cooper. METHODS As described in following, the data was obtained either by exact diagonalization of the Lindblad operator or the solution of the extended Gross-Pitaevskii as defined in the main text. FIGURES Figure 2 a) Phase diagram obtained by exact diagonalization of the Lindblad operator. Regimes of high and low density are separated by a bistability that can be accessed via hysteresis. Fig2a.dat (b) and (c) Exciton number obtained by exact diagonalization of the Lindblad operator. Fig. 2(a) corresponds to the low branch where the pump strength is varied from below. Fig. 2(b) illustrates the hysteresis as the pump strength is tuned from an initial large value. Fig2b.dat Fig2c.dat (d) Purity for the low and hysteresis branch for a cross-section of the set of parameters in Fig. 2(a). Fig2d_1.dat Fig2d_2.dat (e) Phase diagram including saturation effects obtained by exact diagonalization of the Lindblad operator. Fig2e.dat Figure 3 Exciton amplitude obtained for the extended Gross-Pitaevskii for U=0 Fig3_PRL_Non_Interacting.dat Three data sets for the numerical solution of extended Gross-Pitaevskii (eGP) corresponding to the multi-stability of the eGP in the presence of interactions. Fig3_PRL_GP1.dat Fig3_PRL_GP2.dat Fig3_PRL_GP3.dat Full quantum treatments of the excitons Fig3_PRL_Non_Quantum. dat Figure 4 Full quantum treatment of the excitons in the presence of exciton gain obtained by exact diagonalization of the Lindblad operator including the term in Eq. 7 described in the main text. Principal figure following the colour code of the figure. Fig4_Black.dat Fig4_Green.dat Fig4_Red.dat Inset Fig4_Inset_Black.dat Fig4_Inset_Blue.dat Fig4_Inset_Red.dat