Quantum telecommunication with atomic ensembles
Journal
Journal of the Optical Society of America B
Journal Volume
24
Journal Issue
2
Start Page
316
ISSN
0740-3224
1520-8540
Date Issued
2007-01-26
Author(s)
Abstract
Quantum mechanics provides a mechanism for absolutely secure communication between remote parties. For distances greater than 100 km, direct quantum communication via optical fiber is not viable, owing to fiber losses, and intermediate storage of the quantum information along the transmission channel is necessary. This leads to the concept of the quantum repeater, proposed by Briegel et al. [Phys. Rev. Lett. 81, 169 (1998)]. Duan et al. [Nature 414, 413 (2001)] have proposed to use atomic ensembles as the basic memory elements for the quantum repeater. We provide an overview of our program on the use of atomic ensembles as an interface for quantum information transfer and the prospects for long-distance quantum networks.
Publisher
Optica Publishing Group
Type
journal article