Reduction of entropic uncertainty in entangled qubits system by local <inline-formula id="cpb150274ieqn3-1"><inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpb_24_9_090304/cpb150274ieqn3-1.gif"/></inline-formula><inline-formula id="cpb150274ieqn4-1"><inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpb_24_9_090304/cpb150274ieqn4-1.gif"/></inline-formula>-symmetric operation

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

The E _U under the local -symmetric operation as a function of t (in units of 2/Δ E ). The blue-solid, red-dashed, and black-dotted curves correspond to cases of r = 0.1, r = 0.5, and r = 0.9 respectively. Here α = π /16.