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- Title
Experimental Demonstration of Quantum Steering Swapping with Gaussian Entangled States.
- Authors
Wang, Na; Wang, Meihong; Tian, Caixing; Deng, Xiaowei; Su, Xiaolong
- Abstract
As a key element in quantum repeaters, entanglement swapping establishes entanglement between two independent entangled states. Besides entanglement, quantum steering has been identified as an essential quantum resource and has broad applications in quantum communication. Although entanglement swapping has been realized experimentally, quantum steering swapping still remains a challenge since the condition of quantum steering is stronger than that of entanglement. In this article, quantum steering swapping between a three‐mode and a two‐mode Gaussian entangled state in a lossy channel is demonstrated. By choosing the optimum gain in the classical channel that corresponds to the maximum transmission distance, the one‐way and two‐way steerabilities in a new three‐mode Gaussian state located in distant nodes are achieved. The obtained collective steerability from two users to one user has potential application in quantum secret sharing. The results make a crucial step toward applications of quantum steering in asymmetric quantum information processing.
- Subjects
QUANTUM information science; BEAM steering; QUANTUM communication; INFORMATION asymmetry; QUANTUM teleportation; SOLAR stills
- Publication
Laser & Photonics Reviews, 2024, Vol 18, Issue 1, p1
- ISSN
1863-8880
- Publication type
Article
- DOI
10.1002/lpor.202300653