Dynamics of Bloch vectors and channel capacity of two non-identical charge qubits

We have considered a system of two superconducting charge qubits capacitively coupled to a microwave resonator. By means of the Bloch vectors and cross dyadic we quantify the degree of entanglement contained in the generated entangled state in different regimes. We show the important roles played by initial state settings, coupling constant and the mean photon number on generating entangled states with high degree of entanglement and high capacity.