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Deterministic Distribution of Multipartite Entanglement and Steering in a Quantum Network by Separable States by Meihong Wang; Yu Xiang; Haijun Kang; Dongmei Han; Yang Liu; Qiongyi He; Qihuang Gong; Xiaolong Su; Kunchi Peng is a Physics and Astronomy article available to read on EtoBox.
What is Deterministic Distribution of Multipartite Entanglement and Steering in a Quantum Network by Separable States about?
As two valuable quantum resources, Einstein-Podolsky-Rosen entanglement and steering play important roles in quantum-enhanced communication protocols. Distributing such quantum resources among multiple remote users in a network is a crucial precondition underlying various quantum tasks. We experimentally demonstrate the deterministic distribution of two- and three-mode Gaussian entanglement and steering by transmitting separable states in a network consisting of a quantum server and multiple users. In our experiment, entangled states are not prepared solely by the quantum server, but are created among independent users during the distribution process. More specifically, the quantum server prepares separable squeezed states and applies classical displacements on them before spreading out, and users simply perform local beam-splitter operations and homodyne measurements after they receive separable states. We show that the distributed Gaussian entanglement and steerability are robust against channel loss. Furthermore, one-way Gaussian steering is achieved among users that is useful for further directional or highly asymmetric quantum information processing.
Who reads Deterministic Distribution of Multipartite Entanglement and Steering in a Quantum Network by Separable States?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Meihong Wang; Yu Xiang; Haijun Kang; Dongmei Han; Yang Liu; Qiongyi He; Qihuang Gong; Xiaolong Su; Kunchi Peng
- Publisher
- American Physical Society (APS)
- Published
- 2020
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)