Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels

Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels Two separated observers, by applying local operations to a supply of not-too-impure entangled states (e.g., singlets shared through a noisy channel), can prepare a smaller number of entangled pairs of arbitrarily high purity (e.g., near-perfect singlets). These can then be used to faithfully teleport unknown quantum states from one observer to the other, thereby achieving faithful transmission of quantum information through a noisy channel. We give upper and lower bounds on the yield D M of pure singlets ( | Ψ - 〉 ) distillable from mixed states M , showing D M > 0 if 〈 Ψ - | M | Ψ - 〉 > 1 2 . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review Letters American Physical Society (APS)

Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels

4 pages

Loading next page...
 
/lp/american-physical-society-aps/purification-of-noisy-entanglement-and-faithful-teleportation-via-FLRSJ49zNf

References (9)

Publisher
American Physical Society (APS)
Copyright
Copyright © 1996 The American Physical Society
ISSN
1079-7114
DOI
10.1103/PhysRevLett.76.722
Publisher site
See Article on Publisher Site

Abstract

Two separated observers, by applying local operations to a supply of not-too-impure entangled states (e.g., singlets shared through a noisy channel), can prepare a smaller number of entangled pairs of arbitrarily high purity (e.g., near-perfect singlets). These can then be used to faithfully teleport unknown quantum states from one observer to the other, thereby achieving faithful transmission of quantum information through a noisy channel. We give upper and lower bounds on the yield D M of pure singlets ( | Ψ - 〉 ) distillable from mixed states M , showing D M > 0 if 〈 Ψ - | M | Ψ - 〉 > 1 2 .

Journal

Physical Review LettersAmerican Physical Society (APS)

Published: Jan 29, 1996

There are no references for this article.