Bipartite entanglement-annihilating maps: Necessary and sufficient conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F13%3A00080248" target="_blank" >RIV/00216224:14330/13:00080248 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevA.88.032316" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.88.032316</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.88.032316" target="_blank" >10.1103/PhysRevA.88.032316</a>

Result language

angličtina

Original language name

Bipartite entanglement-annihilating maps: Necessary and sufficient conditions

Original language description

We fully characterize bipartite entanglement-annihilating (EA) channels that destroy entanglement of any state shared by subsystems and, thus, should be avoided in any entanglement-enabled experiment. Our approach relies on extending the problem to EA positive maps, the cone of which remains invariant under concatenation with partially positive maps. Due to this invariancy, positive EA maps adopt a well characterization and their intersection with completely positive trace-preserving maps results in theset of EA channels. In addition to a general description, we also provide sufficient operational criteria revealing EA channels. They have a clear physical meaning since the processes involved contain stages of classical information transfer for subsystems. We demonstrate the applicability of derived criteria for local and global depolarizing noises, and specify corresponding noise levels beyond which any initial state becomes disentangled after passing the channel.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review

ISSN

1050-2947

e-ISSN

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Volume of the periodical

88

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

1-7

UT code for WoS article

000324393600006

EID of the result in the Scopus database

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