Dynamical decoupling pulses on the quantum correlations for the system of superconducting quantum circuit*
Wang Dong-Meia),b), Qian Yia), Xu Jing-Boa), Yu You-Hongb)
       
The trace distance D̃ of two states of superconducting qubits is plotted as a function of (sin θ )2 and t with a train of π -phase pulses having interval time of T = 0.7 for Δ ϑ = π and Δ = 0.