Efficient bounds on quantum-communication rates via their reduced variants

Marcin L Nowakowski; Paweł Horodecki

Efficient bounds on quantum-communication rates via their reduced variants

Abstract

We investigate one-way communication scenarios where Bob operating on his component can transfer some subsystem to the environment. We define reduced versions of quantum-communication rates and, further, prove upper bounds on a 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.

Authors (2)

Marcin L Nowakowski
Paweł Horodecki prof. dr hab.

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Publication version: Accepted or Published Version
License: Copyright (2010 The American Physical Society)

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: PHYSICAL REVIEW A no. 82, pages 423421 - 6,
ISSN: 2469-9926
Language:: English
Publication year:: 2010
Bibliographic description:: Nowakowski M., Horodecki P.: Efficient bounds on quantum-communication rates via their reduced variants// PHYSICAL REVIEW A. -Vol. 82, nr. Iss. 4 (2010), s.423421-6
Verified by:: Gdańsk University of Technology