Distribution and revival of tripartite Einstein–Podolsky–Rosen steering in all-optical correlated noise channel
Shuqin Zhai, Xinyan Shi, Kui Liu
Abstract Quantum steering, also know as Einstein–Podolsky–Rosen steering, is a key resource in quantum information. It has significant application value for constructing secure quantum communication networks due to its unique asymmetric property. However, quantum steering is susceptible to decoherence. Decoherence occurs due to the interaction between a quantum system and its environment, and eventually leads to the reduction or even disappearance of steering. In this paper, we propose an all-optical correlated noise channel (ACNC) scheme based on four-wave mixing (FWM) processes, investigate the impact of noise in the channel and FWM gains on quantum steering characteristics as well as the capability of the ACNC to restore quantum steering. This scheme is achieved through optical nonlinear processes and avoids the electro-optic conversions and significantly expands the operational bandwidth. The research results show that the ACNC can effectively restore the damaged quantum steering. The range of one-way steering and genuine tripartite steering can be flexibly controlled by adjusting parameters. Moreover, the Gaussian steered monogamous relationships have also been verified. Our scheme provides new theoretical reference for constructing all-optical secure quantum networks.
Journal of Physics B Atomic Molecular and Optical Physics•Oct 20, 2025•1 citation