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arXiv · 1710.06704

Geometric Local Hidden State Model for Some Two-qubit States

Bai-Chu Yu·Zhih-Ahn Jia·Yu-chun Wu·Guang-Can Guo
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Abstract

Adopting the geometric description of steering assemblages and local hidden states (LHS) model, we construct the optimal LHS model for some two-qubit states under continuous projective measurements, and obtain a sufficient steering criterion for all two-qubit states. Using the criterion, we show more two-qubit states that are asymmetric in steering scenario under projective measurements. Then we generalize the geometric description into higher dimensional bipartite cases, calculate the steering bound of two-qutrit isotropic states and make discussion on more general cases.

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Bai-Chu Yu, Zhih-Ahn Jia, Yu-chun Wu, Guang-Can Guo. 2017-10-18. Geometric Local Hidden State Model for Some Two-qubit States. https://doi.org/10.1103/physreva.98.052345

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