FIG. 14. Compression softening observed for occupation probabilities p < 1.

The curves are averaged over 100 runs on an 8 × 8 lattice obeying the Hamiltonian H_o+fn with $K_A{l}_0^2/K_{cf}=0$. (a) Here, $K_{cf}{l}_0^2/K_{sf}=0$. (b) Here, $K_{cf}{l}_0^2/K_{sf}=1$.