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quant-ph2017
Bimodal behavior of post-measured entropy and one-way quantum deficit for two-qubit X states
M. A. Yurischev
A method for calculating the one-way quantum deficit is developed. It involves a careful study of post-measured entropy shapes. We discovered that in some regions of X-state space…
quant-ph2017
Extremal properties of conditional entropy and quantum discord for XXZ symmetric quantum states
M. A. Yurischev
For the XXZ subclass of symmetric two-qubit X states, we study the behavior of quantum conditional entropy S_{cond} as a function of measurement angle θ\in[0,π/2]. Numerical calcul…