Fast Entanglement Distribution with Atomic Ensembles and Fluorescent Detection

Autor:	Brask, Jonatan B., Jiang, Liang, Gorshkov, Alexey V., Vuletic, Vladan, Sorensen, Anders S., Lukin, Mikhail D.
Rok vydání:	2009
Předmět:	Quantum Physics
Zdroj:	Phys. Rev. A 81, 020303(R) (2010)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.81.020303
Popis:	Quantum repeaters based on atomic ensemble quantum memories are promising candidates for achieving scalable distribution of entanglement over long distances. Recently, important experimental progress has been made towards their implementation. However, the entanglement rates and scalability of current approaches are limited by relatively low retrieval and single-photon detector efficiencies. We propose a scheme, which makes use of fluorescent detection of stored excitations to significantly increase the efficiency of connection and hence the rate. Practical performance and possible experimental realizations of the new protocol are discussed. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0907.3839 Zobrazit plný text záznamu View this record from Arxiv