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arXiv · 2210.01430

Quantum steering in a star network

Guangming Jiang·Xiaohua Wu·Tao Zhou
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Abstract

In this work, we will consider the star network scenario where the central party is trusted while all the edge parties (with a number of $n$) are untrusted. Network steering is defined with an $n$ local hidden state model which can be viewed as a special kind of $n$ local hidden variable model. Two different types of sufficient criteria, nonlinear steering inequality and linear steering inequality will be constructed to verify the quantum steering in a star network. Based on the linear steering inequality, how to detect the network steering with a fixed measurement will be discussed.

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Guangming Jiang, Xiaohua Wu, Tao Zhou. 2022-10-04. Quantum steering in a star network. https://arxiv.org/abs/2210.01430

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