Reduction of entropic uncertainty in entangled qubits system by local -symmetric operation
Zhang Shi-Yang, Fang Mao-Fa†, Zhang Yan-Liang, Guo You-Neng, Zhao Yan-Jun, Tang Wu-Wei
       
Negativity N under the local -symmetric operation as a function of t (in units of 2/Δ E ) for the cases of α = − π /2 (solid line), α = − π /4 (dashed line), α = − π /16 (dot dashed line), and α = 0 (dotted line). Here r = 0.3.