噪声环境下星型量子网络的非局域性共享

Abstract

Abstract:

Bell nonlocality sharing of quantum systems is a basic feature of quantum mechanics. The nonlocality sharing ability of network quantum states is stronger than bell nonlocality, and the structure of network quantum states is more complex. In practical applications, the error of quantum entanglement generation and the noise in the process of quantum measurement will lead to the decay of nonlocality sharing. This article explores the sufficient conditions for the persistence of nonlocality sharing with noise under unilateral and multilateral measurements in star networks, and analyzes the impact of different noise conditions on the persistence of nonlocality sharing in star networks. In particular, this paper also applies the above conclusions to the specific bilocal scenarios: with two independent sources, one central party and two edge parties.

Key words: quantum nonlocality sharing, quantum noise, quantum network, POVM measurements

CLC Number:

O177

Shan Liu, Kan He, Feng Zhang. Sharing Quantum Nonlocality in Noisy Star Networks[J].Acta mathematica scientia,Series A, 2026, 46(1): 366-376.

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References 30

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Sharing Quantum Nonlocality in Noisy Star Networks

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