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Demonstration of Einstein–Podolsky–Rosen Steering with Multiple Observers via Sequential Measurements |
| Jian Li1,2,3†, Yang Zhou1,2,3†, and Qin Wang1,2,3* |
1Institute of Quantum Information and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
2Key Lab of Broadband Wireless Communication and Sensor Network Technology (Ministry of Education), Nanjing University of Posts and Telecommunications, Nanjing 210003, China
3National Engineering Research Center of Telecommunication and Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
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| Cite this article: |
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Jian Li, Yang Zhou, and Qin Wang 2022 Chin. Phys. Lett. 39 110301 |
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Abstract Quantum correlation is a fundamental property that distinguishes quantum systems from classical ones, and is also a fragile resource under projective measurements. Recently, it has been shown that a subsystem in entangled pairs can share nonlocalities with multiple observers in sequence. Here we present a new steering scenario where both subsystems are accessible by multiple observers. Simulation results show that the two qubits in a singlet state can be simultaneously steered separately by two sequential observers.
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Received: 31 August 2022
Published: 30 October 2022
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| PACS: |
03.65.Ud
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(Entanglement and quantum nonlocality)
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03.65.Wj
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(State reconstruction, quantum tomography)
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03.67.Hk
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(Quantum communication)
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42.65.Lm
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(Parametric down conversion and production of entangled photons)
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