Multiqubit entanglement due to quantum gravity

• URL: http://arxiv.org/abs/2301.05437v2
• Date: Thu, 1 Jun 2023 04:42:40 GMT
• Title: Multiqubit entanglement due to quantum gravity
• Authors: Shaomin Liu, Lin Chen, Mengfan Liang
• Abstract summary: Quantum gravity between masses can produce entangled states in thought experiments. We construct entanglement states equivalent to Greenberger- Horne-Zeilinger states and W states under local operations. We measure the degree of multipartite entanglement by calculating the geometric measure.
• Score: 7.115582661400245
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum gravity between masses can produce entangled states in thought experiments. We extend the experiments to tripartite case and construct states equivalent to Greenberger- Horne-Zeilinger states and W states under stochastic local operations and classical communication. The entanglement relates to the evolution phases induced by gravitational interaction. When we involve more masses in the experiments, multipartite entangled states can be constructed in a similar way. We measure the degree of multipartite entanglement by calculating the geometric measure. We describe the relationship between geometric measure and the evolution phases. It helps in searching out the states with robust entanglement.

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