2009/09/16 by Heng Shen, Xiaolong Su, Xiaojun Jia +1 · 20 citations
Computer Science · Mathematics · Physics and Astronomy · #Coding (social sciences) #Computer network #Computer science #Mathematics #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum channel #Quantum entanglement #Quantum information science #Quantum mechanics #Quantum network #Quantum optics and atomic interactions #Statistics #quant-ph
paper · pdf · doi:10.1103/physreva.80.042320
published in Physical Review A 80(4) (American Physical Society)
arxiv created 2009/09/16 · openalex publication_date 2009/10/22 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We propose two types of quantum dense coding communication networks with optical continuous variables, in which a quadripartite entangled state of the optical field with totally three-party correlations of quadrature amplitudes is utilized. In the networks, the exchange of information between any two participants can be manipulated by one or two of the remaining participants. The channel capacities for a variety of communication protocols are numerically calculated. Due to the fact that the quadripartite entangled states applied in the communication systems have been successfully prepared already in the laboratory, the proposed schemes are experimentally accessible at present.