375182.fig.002a
(a)
375182.fig.002b
(b)
Figure 2: (a) Concurrence as a function of the rescaled time, for different and fixed , being respectively the cut-off and thermal frequency ( with ) and the form factor . Other data are , . (b) Plot of the concurrence at the peak (obtained from (a)) as a function of the coupling strength, , for different values as indicated in the legend. Other values are the same as in (a).