Figure 7

Dynamics of concurrence as a functions of the dimensionless quantity Jt and magnetic field \(B_0/J\) for the initial state \(|\Phi _3\rangle =\frac{1}{\sqrt{2}}\left[ |0,1\rangle -|1,0\rangle \right]\) by setting \(\kappa =0.05J\), \(T_M=2J\) and \(\Delta =0.5 J\). The panels (a) and (b) correspond to the symmetric coupling setting \((\varepsilon =0)\) and asymmetric coupling setting \((\varepsilon =1)\), respectively.