2010/03/11 by Han Yang, Yang Han, Bing He +3
Chemistry · Computer Science · Engineering · Physics and Astronomy · #Blockade #Chemistry #Computer science #Electrical engineering #Engineering #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum computer #Quantum entanglement #Quantum key distribution #Quantum mechanics #Quantum optics and atomic interactions #Qubit #Rydberg formula #Statistical physics #Topology (electrical circuits) #quant-ph
paper · pdf · doi:10.1103/physreva.81.052311
published as Phys. Rev. A 81, 052311 (2010) · 8 pages, 5 figures, 1 table
arxiv created 2010/03/11 · openalex publication_date 2010/05/11 · arxiv updated 2015/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose a scheme for realizing quantum repeaters with Rydberg-blockade-coupled atomic ensembles, based on a recently proposed collective encoding strategy. Rydberg-blockade-mediated two-qubit gates and efficient cooperative photon emission are employed to create ensemble-photon entanglement. Thanks to deterministic entanglement swapping operations via Rydberg-based two-qubit gates, and to the suppression of multiexcitation errors by the blockade effect, the entanglement distribution rate of the present scheme is higher by orders of magnitude than the rates achieved by other ensemble-based repeaters. We also show how to realize temporal multiplexing with this system, which offers an additional speedup in entanglement distribution.