Figure 7
From: Cavity-based architecture to preserve quantum coherence and entanglement
The dynamics of concurrence for different coupling strengths JA and JB in (a) weak qubit-cavity coupling regimes with 
and (b) strong qubit-cavity coupling regimes with 
. The initial state weights are chosen as (a) 
, 
and (b) 
, 
, while in both cases 
. The inset in (b) shows the long-time dynamics of concurrence for 
and 
. Panels (c,d) show the density plots of the two-qubit concurrence as a function of J (JA = JB = J is here assumed) and scaled time Γt, the others parameters being as in panels (a,b), respectively. The values of the concurrence in the density plots range within the interval: (c) [0, 0.6]; (d) [0, 1].
