1 August 2023 Revival of quantum steering in correlated noisy channels
Shuqin Zhai, Nana Zhang, Kui Liu
Author Affiliations +
Abstract

Multipartite quantum steering has crucial applications in the field of asymmetric secure quantum networks. In the actual quantum communication transmission process, the inevitable loss and noise in the channels will lead to reduction or even disappearance of quantum steering, which is extremely unfavorable to the transmission of information, so it has important practical significance for research of the revival of quantum steering. We theoretically studied the influence of noise on steering and investigated the revival of quantum steering by correlated noisy channels. The results show that excessive noise can cause sudden death of steering, whereas the disappeared steering can be revived by introducing correlated noise. Simultaneously, we also confirmed that the steerability and direction of steering can be manipulated by changing the transmissivity of the revived beam splitter. Our work provides a feasible reference for secure quantum communication in real noisy environment.

© 2023 Society of Photo-Optical Instrumentation Engineers (SPIE)
Shuqin Zhai, Nana Zhang, and Kui Liu "Revival of quantum steering in correlated noisy channels," Optical Engineering 62(8), 088101 (1 August 2023). https://doi.org/10.1117/1.OE.62.8.088101
Received: 29 March 2023; Accepted: 20 July 2023; Published: 1 August 2023
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KEYWORDS
Quantum steering

Quantum channels

Quantum noise

Quantum correlations

Beam splitters

Quantum communications

Quantum entanglement

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