Sharing Quantum Nonlocality in Star Network Scenarios
- URL: http://arxiv.org/abs/2210.05985v1
- Date: Wed, 12 Oct 2022 07:50:19 GMT
- Title: Sharing Quantum Nonlocality in Star Network Scenarios
- Authors: Tinggui Zhang, Naihuan Jing and Shao-Ming Fei
- Abstract summary: The nonlocality of quantum network states is more complex than the Bell nonlocality.
For the star network scenarios, we present for the first time comprehensive results on the nonlocality sharing properties of quantum network states.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The Bell nonlocality is closely related to the foundations of quantum physics
and has significant applications to security questions in quantum key
distributions. In recent years, the sharing ability of the Bell nonlocality has
been extensively studied. The nonlocality of quantum network states is more
complex. We first discuss the sharing ability of the simplest bilocality under
unilateral or bilateral POVM measurements, and show that the nonlocality
sharing ability of network quantum states under unilateral measurements is
similar to the Bell nonlocality sharing ability, but different under bilateral
measurements. For the star network scenarios, we present for the first time
comprehensive results on the nonlocality sharing properties of quantum network
states, for which the quantum nonlocality of the network quantum states has a
stronger sharing ability than the Bell nonlocality.
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