2008/08/31 by Bing He, Yuhang Ren, Yu-Hang Ren +2 · 1 citation
Computer Science · Engineering · Mathematics · Physics and Astronomy · #Algorithm #Bell state #Computer science #Electrical engineering #Encoding (memory) #Engineering #Flexibility (engineering) #Mathematics #Photon #Photon entanglement #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum channel #Quantum entanglement #Quantum information science #Quantum mechanics #Quantum teleportation #Repeater (horology) #State (computer science) #Telecommunications #Topology (electrical circuits) #quant-ph
paper · pdf · doi:10.1103/physreva.79.052323
published as PHYSICAL REVIEW A 79, 052323 (2009) · 9 pages, 5 figures
arxiv created 2009/04/15 · openalex publication_date 2009/05/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a quantum repeater protocol that generates the elementary segments of entangled photons through the communication of qubus in coherent states. The input photons at the repeater stations can be in arbitrary states to save the local state preparation time for the operations. The flexibility of the scheme accelerates the generation of the elementary segments (close to the exact Bell states) to a high rate for practical quantum communications. The entanglement connection to long distances is simplified and sped up, possibly realizing an entangled pair of high quality within the time in the order of that for classical communication between two far-away locations.