FIG. 2.

(Color online) Statistical temperatures $T_S\left(U\right)$ (solid lines) and configurational temperatures $T_{\mathit{\text{conF}}}\left(U\right)$ (squares and circles) with different $\lambda =1.0,0.9,0.5$, and 0 from top to bottom at $U=40$. Note that horizontal lines at $T_{\theta }=0.62$ and $T_f=0.59$ match the backbending and plateau regions of $T_S\left(U\right)$ at $\lambda =0$, respectively.