Figure 12

Comparison of the results for mean polariton number in the central cavity obtained by the P -function mean-field method, red line, and by the conventional numerical method, dashed lines, with cut-offs at three (black), four (blue) and five (green) excitations. (a) Deviation due to an increase in the tunneling rate for $\mathrm{\Omega }/\gamma =1.5$ and $U/\gamma =2$. (b) Deviations due to an increase in driving strength for $J/\gamma =0.2$ and $U/\gamma =0.5$.