Sharing EPR steering between sequential pairs of observers

• URL: http://arxiv.org/abs/2307.09928v1
• Date: Wed, 19 Jul 2023 12:06:04 GMT
• Title: Sharing EPR steering between sequential pairs of observers
• Authors: Qiao-Qiao Lv, Jin-Min Liang, Zhi-Xi Wang, Shao-Ming Fei
• Abstract summary: We show that sequential Alice-Bob pairs can share the EPR steering as long as the initially shared state is an entangled two-qubit pure state. The claim is also true for particular class of mixed entangled states.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The recycling of quantum correlations has attracted widespread attention both theoretically and experimentally. Previous works show that bilateral sharing of nonlocality is impossible under mild measurement strategy and 2-qubit entangled state can be used to witness entanglement arbitrary many times by sequential and independent pairs of observers. However, less is known about the bilateral sharing of EPR steering yet. Here, we aim at investigating the EPR steering sharing between sequential pairs of observers. We show that an unbounded number of sequential Alice-Bob pairs can share the EPR steering as long as the initially shared state is an entangled two-qubit pure state. The claim is also true for particular class of mixed entangled states.

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