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Long Distance Quantum Communication with Atomic Ensembles

Chou, C. W. and Polyakov, S. V. and Felinto, D. and de Riedmatten, H. and van Enk, S. J. and Kimble, H. J. (2007) Long Distance Quantum Communication with Atomic Ensembles. In: Quantum information with continuous variables of atoms and light. Imperial College Press , London, pp. 553-580. ISBN 9781860947605. https://resolver.caltech.edu/CaltechAUTHORS:20100826-110433704

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Abstract

The ability to distribute quantum resources over long distances is a key element for the development of several practical applications in the field of quantum information. In this way, major efforts have been made in the past decade to extend the maximum distances for the observation of entanglement or for the realization of quantum cryptography. Using optical fibers as the quantum channel, entanglement has already been achieved between photons separated by 50 km of fiber, and quantum cryptography is now a commercial technology that allows quantum key distributon over distances up to around 100 km. Progress has also been made towards entanglement distribution in free space, with the achieved distances of about 10 km on ground atmosphere being a substantial step toward the development of satellite-based quantum communication.


Item Type:Book Section
Additional Information:© 2007 Imperial College Press. The authors gratefully acknowledge fruitful discussions with W. Bowen, A. Boca, J. McKeever, and D. Boozer. This work is supported by ARDA, by the Caltech MURI Center for Quantum Networks, and by the NSF. D.F. is supported by a fellowship from CNPq (Brazilian agency). H.d.R. is supported by a fellowship from the Swiss National Science Foundation.
Funders:
Funding AgencyGrant Number
ARDAUNSPECIFIED
Caltech MURI Center for Quantum NetworksUNSPECIFIED
NSFUNSPECIFIED
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNSPECIFIED
Swiss National Science FoundationUNSPECIFIED
Subject Keywords:Quantum theory ; Quantum communication
Record Number:CaltechAUTHORS:20100826-110433704
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100826-110433704
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19671
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:14 Sep 2010 18:19
Last Modified:03 Oct 2019 02:00

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