Efficient bounds on quantum communication rates via their reduced variants

Details Efficient bounds on quantum communication rates via their reduced variants Efficient bounds on quantum communication rates via their reduced variants

2010-07-04

arxiv.org/abs/1007.0591v1

Phys. Rev. A 82, 042342 (2010)

Physics

Quantum Physics

6 pages, RevTex

Scientific paper

We investigate one-way communication scenarios where Bob manipulating on his parts can transfer some sub-system to the environment. We define reduced versions of quantum communication rates and further, prove new upper bounds on one-way quantum secret key, distillable entanglement and quantum channel capacity by means of their reduced versions. It is shown that in some cases they drastically improve their estimation.

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