Phys. Rev. A 67, 014302 (2003) [3 pages]Distillation of multiple copies of Bell statesReceived 29 September 2002; published 17 January 2003 It is impossible to discriminate four Bell states through local operations and classical communication, if only one copy is provided. To complete this task, two copies will suffice and be necessary. When 2n copies are provided, we show that the distillable entanglement is exactly 2n-2. Surprisingly, when 2n-1 copies are provided, the distillable entanglement is also 2n-2. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.014302
DOI:
10.1103/PhysRevA.67.014302
PACS:
03.67.Hk, 03.65.Ud
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.